🚀 Add and Improve Parsers

Added new supported file extensions: ".zip", ".html" and ".htm". Improved parsers: ".epub".

Partly Resolves(no ".cbz"): #48

app/src/main/java/ua/acclorite/book_story/data/parser/FileParserImpl.kt

@@ -2,8 +2,11 @@ package ua.acclorite.book_story.data.parser
 
 import ua.acclorite.book_story.data.parser.epub.EpubFileParser
 import ua.acclorite.book_story.data.parser.fb2.Fb2FileParser
+import ua.acclorite.book_story.data.parser.htm.HtmFileParser
+import ua.acclorite.book_story.data.parser.html.HtmlFileParser
 import ua.acclorite.book_story.data.parser.pdf.PdfFileParser
 import ua.acclorite.book_story.data.parser.txt.TxtFileParser
+import ua.acclorite.book_story.data.parser.zip.ZipFileParser
 import ua.acclorite.book_story.domain.model.Book
 import ua.acclorite.book_story.domain.util.CoverImage
 import java.io.File
@@ -13,32 +16,48 @@ class FileParserImpl @Inject constructor(
     private val txtFileParser: TxtFileParser,
     private val pdfFileParser: PdfFileParser,
     private val epubFileParser: EpubFileParser,
-    private val fb2FileParser: Fb2FileParser
+    private val fb2FileParser: Fb2FileParser,
+    private val zipFileParser: ZipFileParser,
+    private val htmlFileParser: HtmlFileParser,
+    private val htmFileParser: HtmFileParser,
 ) : FileParser {
     override suspend fun parse(file: File): Pair<Book, CoverImage?>? {
         if (!file.exists()) {
             return null
         }
 
-        val fileFormat = ".${file.name.substringAfterLast(".")}".lowercase().trim()
+        val fileFormat = ".${file.extension}".lowercase().trim()
+        return when (fileFormat) {
+            ".pdf" -> {
+                pdfFileParser.parse(file)
+            }
 
-        if (fileFormat == ".pdf") {
-            return pdfFileParser.parse(file)
+            ".epub" -> {
+                epubFileParser.parse(file)
+            }
+
+            ".txt" -> {
+                txtFileParser.parse(file)
+            }
+
+            ".fb2" -> {
+                fb2FileParser.parse(file)
+            }
+
+            ".zip" -> {
+                zipFileParser.parse(file)
+            }
+
+            ".html" -> {
+                htmlFileParser.parse(file)
+            }
+
+            ".htm" -> {
+                htmFileParser.parse(file)
+            }
+
+            else -> null
         }
-
-        if (fileFormat == ".epub") {
-            return epubFileParser.parse(file)
-        }
-
-        if (fileFormat == ".txt") {
-            return txtFileParser.parse(file)
-        }
-
-        if (fileFormat == ".fb2") {
-            return fb2FileParser.parse(file)
-        }
-
-        return null
     }
 }
 

app/src/main/java/ua/acclorite/book_story/data/parser/TextParserImpl.kt

@@ -1,10 +1,12 @@
 package ua.acclorite.book_story.data.parser
 
 import ua.acclorite.book_story.R
-import ua.acclorite.book_story.data.parser.epub.EpubTextParser
 import ua.acclorite.book_story.data.parser.fb2.Fb2TextParser
+import ua.acclorite.book_story.data.parser.htm.HtmTextParser
+import ua.acclorite.book_story.data.parser.html.HtmlTextParser
 import ua.acclorite.book_story.data.parser.pdf.PdfTextParser
 import ua.acclorite.book_story.data.parser.txt.TxtTextParser
+import ua.acclorite.book_story.data.parser.zip.ZipTextParser
 import ua.acclorite.book_story.domain.util.Resource
 import ua.acclorite.book_story.domain.util.UIText
 import java.io.File
@@ -13,8 +15,11 @@ import javax.inject.Inject
 class TextParserImpl @Inject constructor(
     private val txtTextParser: TxtTextParser,
     private val pdfTextParser: PdfTextParser,
-    private val epubTextParser: EpubTextParser,
-    private val fb2TextParser: Fb2TextParser
+    private val epubTextParser: HtmlTextParser,
+    private val fb2TextParser: Fb2TextParser,
+    private val zipTextParser: ZipTextParser,
+    private val htmlTextParser: HtmlTextParser,
+    private val htmTextParser: HtmTextParser,
 ) : TextParser {
     override suspend fun parse(file: File): Resource<List<String>> {
         if (!file.exists()) {
@@ -23,25 +28,38 @@ class TextParserImpl @Inject constructor(
             )
         }
 
-        val fileFormat = ".${file.name.substringAfterLast(".")}".lowercase().trim()
+        val fileFormat = ".${file.extension}".lowercase().trim()
+        return when (fileFormat) {
+            ".pdf" -> {
+                pdfTextParser.parse(file)
+            }
 
-        if (fileFormat == ".pdf") {
-            return pdfTextParser.parse(file)
+            ".epub" -> {
+                epubTextParser.parse(file)
+            }
+
+            ".txt" -> {
+                txtTextParser.parse(file)
+            }
+
+            ".fb2" -> {
+                fb2TextParser.parse(file)
+            }
+
+            ".zip" -> {
+                zipTextParser.parse(file)
+            }
+
+            ".html" -> {
+                htmlTextParser.parse(file)
+            }
+
+            ".htm" -> {
+                htmTextParser.parse(file)
+            }
+
+            else -> Resource.Error(UIText.StringResource(R.string.error_wrong_file_format))
         }
-
-        if (fileFormat == ".epub") {
-            return epubTextParser.parse(file)
-        }
-
-        if (fileFormat == ".txt") {
-            return txtTextParser.parse(file)
-        }
-
-        if (fileFormat == ".fb2") {
-            return fb2TextParser.parse(file)
-        }
-
-        return Resource.Error(UIText.StringResource(R.string.error_wrong_file_format))
     }
 }
 

app/src/main/java/ua/acclorite/book_story/data/parser/epub/EpubFileParser.kt

@@ -5,6 +5,7 @@ import android.graphics.BitmapFactory
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
 import ua.acclorite.book_story.data.parser.FileParser
 import ua.acclorite.book_story.domain.model.Book
 import ua.acclorite.book_story.domain.model.Category
@@ -36,30 +37,43 @@ class EpubFileParser @Inject constructor() : FileParser {
                         .use { it.readText() }
                     val document = Jsoup.parse(opfContent)
 
-                    val title = document.select("metadata > dc|title").text().trim()
-                    val author = UIText.StringValue(
-                        document.select("metadata > dc|creator").text().trim()
-                    )
+                    val title = document.select("metadata > dc|title").text().trim().run {
+                        ifBlank {
+                            file.nameWithoutExtension.trim()
+                        }
+                    }
+
+                    val author = document.select("metadata > dc|creator").text().trim().run {
+                        if (isBlank()) {
+                            UIText.StringResource(R.string.unknown_author)
+                        } else {
+                            UIText.StringValue(this)
+                        }
+                    }
+
                     val description = Jsoup.parse(
                         document.select("metadata > dc|description").text()
-                    ).text()
+                    ).text().run {
+                        ifBlank {
+                            null
+                        }
+                    }
 
-                    var coverImagePath: String? = null
-
-                    val coverId = document
+                    val coverImage = document
                         .select("metadata > meta[name=cover]")
                         .attr("content")
-                    if (coverId.isNotBlank()) {
-                        coverImagePath = document
-                            .select("manifest > item[id=$coverId]")
-                            .attr("href")
-                    }
+                        .run {
+                            if (isNotBlank()) {
+                                document
+                                    .select("manifest > item[id=$this]")
+                                    .attr("href")
+                                    .apply { if (isNotBlank()) return@run this }
+                            }
 
-                    if (coverImagePath.isNullOrBlank()) {
-                        coverImagePath = document
-                            .select("manifest > item[media-type*=image]")
-                            .firstOrNull()?.attr("href")
-                    }
+                            document
+                                .select("manifest > item[media-type*=image]")
+                                .firstOrNull()?.attr("href")
+                        }
 
                     book = Book(
                         title = title,
@@ -73,7 +87,7 @@ class EpubFileParser @Inject constructor() : FileParser {
                         lastOpened = null,
                         category = Category.entries[0],
                         coverImage = null
-                    ) to extractCoverImageBitmap(file, coverImagePath)
+                    ) to extractCoverImageBitmap(file, coverImage)
                 }
             }
             return book

app/src/main/java/ua/acclorite/book_story/data/parser/fb2/Fb2FileParser.kt

@@ -29,7 +29,7 @@ class Fb2FileParser @Inject constructor() : FileParser {
             }
 
             val titleFromFile = extractElementContent(document, "book-title")
-            val title = titleFromFile ?: file.name.dropLast(4).trim()
+            val title = titleFromFile ?: file.nameWithoutExtension.trim()
 
             val authorFirstName = extractElementContent(document, "first-name")
             val authorLastName = extractElementContent(document, "last-name")

app/src/main/java/ua/acclorite/book_story/data/parser/htm/HtmFileParser.kt

@@ -0,0 +1,47 @@
+package ua.acclorite.book_story.data.parser.htm
+
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.FileParser
+import ua.acclorite.book_story.domain.model.Book
+import ua.acclorite.book_story.domain.model.Category
+import ua.acclorite.book_story.domain.util.CoverImage
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import javax.inject.Inject
+
+class HtmFileParser @Inject constructor() : FileParser {
+
+    override suspend fun parse(file: File): Pair<Book, CoverImage?>? {
+        if (!file.name.endsWith(".htm", true) || !file.exists()) {
+            return null
+        }
+
+        try {
+            val document = Jsoup.parse(file)
+
+            val title = document.select("head > title").text().trim().run {
+                ifBlank {
+                    file.nameWithoutExtension.trim()
+                }
+            }
+
+            return Book(
+                title = title,
+                author = UIText.StringResource(R.string.unknown_author),
+                description = null,
+                textPath = "",
+                scrollIndex = 0,
+                scrollOffset = 0,
+                progress = 0f,
+                filePath = file.path,
+                lastOpened = null,
+                category = Category.entries[0],
+                coverImage = null
+            ) to null
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return null
+        }
+    }
+}

app/src/main/java/ua/acclorite/book_story/data/parser/htm/HtmTextParser.kt

@@ -0,0 +1,48 @@
+package ua.acclorite.book_story.data.parser.htm
+
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.TextParser
+import ua.acclorite.book_story.domain.util.Resource
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import javax.inject.Inject
+
+
+class HtmTextParser @Inject constructor() : TextParser {
+
+    override suspend fun parse(file: File): Resource<List<String>> {
+        if (!file.name.endsWith(".htm", true) || !file.exists()) {
+            return Resource.Error(UIText.StringResource(R.string.error_wrong_file_format))
+        }
+
+        try {
+            val lines = mutableListOf<String>()
+
+            val document = Jsoup.parse(file)
+            document.select("p").append("\n")
+            document
+                .wholeText()
+                .lines()
+                .forEach { line ->
+                    if (line.isNotBlank()) {
+                        lines.add(line.trim())
+                    }
+                }
+
+            if (lines.isEmpty()) {
+                return Resource.Error(UIText.StringResource(R.string.error_file_empty))
+            }
+
+            return Resource.Success(lines)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return Resource.Error(
+                UIText.StringResource(
+                    R.string.error_query,
+                    e.message?.take(40)?.trim() ?: ""
+                )
+            )
+        }
+    }
+}

app/src/main/java/ua/acclorite/book_story/data/parser/html/HtmlFileParser.kt

@@ -0,0 +1,47 @@
+package ua.acclorite.book_story.data.parser.html
+
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.FileParser
+import ua.acclorite.book_story.domain.model.Book
+import ua.acclorite.book_story.domain.model.Category
+import ua.acclorite.book_story.domain.util.CoverImage
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import javax.inject.Inject
+
+class HtmlFileParser @Inject constructor() : FileParser {
+
+    override suspend fun parse(file: File): Pair<Book, CoverImage?>? {
+        if (!file.name.endsWith(".html", true) || !file.exists()) {
+            return null
+        }
+
+        try {
+            val document = Jsoup.parse(file)
+
+            val title = document.select("head > title").text().trim().run {
+                ifBlank {
+                    file.nameWithoutExtension.trim()
+                }
+            }
+
+            return Book(
+                title = title,
+                author = UIText.StringResource(R.string.unknown_author),
+                description = null,
+                textPath = "",
+                scrollIndex = 0,
+                scrollOffset = 0,
+                progress = 0f,
+                filePath = file.path,
+                lastOpened = null,
+                category = Category.entries[0],
+                coverImage = null
+            ) to null
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return null
+        }
+    }
+}

app/src/main/java/ua/acclorite/book_story/data/parser/html/HtmlTextParser.kt

@@ -0,0 +1,48 @@
+package ua.acclorite.book_story.data.parser.html
+
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.TextParser
+import ua.acclorite.book_story.domain.util.Resource
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import javax.inject.Inject
+
+
+class HtmlTextParser @Inject constructor() : TextParser {
+
+    override suspend fun parse(file: File): Resource<List<String>> {
+        if (!file.name.endsWith(".html", true) || !file.exists()) {
+            return Resource.Error(UIText.StringResource(R.string.error_wrong_file_format))
+        }
+
+        try {
+            val lines = mutableListOf<String>()
+
+            val document = Jsoup.parse(file)
+            document.select("p").append("\n")
+            document
+                .wholeText()
+                .lines()
+                .forEach { line ->
+                    if (line.isNotBlank()) {
+                        lines.add(line.trim())
+                    }
+                }
+
+            if (lines.isEmpty()) {
+                return Resource.Error(UIText.StringResource(R.string.error_file_empty))
+            }
+
+            return Resource.Success(lines)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return Resource.Error(
+                UIText.StringResource(
+                    R.string.error_query,
+                    e.message?.take(40)?.trim() ?: ""
+                )
+            )
+        }
+    }
+}

app/src/main/java/ua/acclorite/book_story/data/parser/pdf/PdfFileParser.kt

@@ -24,10 +24,11 @@ class PdfFileParser @Inject constructor(private val application: Application) :
 
             val document = PDDocument.load(file)
 
-            val title = document.documentInformation.title ?: file.name.dropLast(4).trim()
-            val fileAuthor = document.documentInformation.author
-            val author = if (fileAuthor != null) UIText.StringValue(fileAuthor)
-            else UIText.StringResource(R.string.unknown_author)
+            val title = document.documentInformation.title ?: file.nameWithoutExtension.trim()
+            val author = document.documentInformation.author.run {
+                if (isNullOrBlank()) UIText.StringResource(R.string.unknown_author)
+                else UIText.StringValue(this)
+            }
             val description = document.documentInformation.subject ?: null
 
             document.close()

app/src/main/java/ua/acclorite/book_story/data/parser/txt/TxtFileParser.kt

@@ -17,7 +17,7 @@ class TxtFileParser @Inject constructor() : FileParser {
         }
 
         try {
-            val title = file.name.trim().dropLast(4)
+            val title = file.nameWithoutExtension.trim()
             val author = UIText.StringResource(R.string.unknown_author)
 
             return Book(

app/src/main/java/ua/acclorite/book_story/data/parser/zip/ZipFileParser.kt

@@ -0,0 +1,116 @@
+package ua.acclorite.book_story.data.parser.zip
+
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.FileParser
+import ua.acclorite.book_story.domain.model.Book
+import ua.acclorite.book_story.domain.model.Category
+import ua.acclorite.book_story.domain.util.CoverImage
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import java.util.zip.ZipFile
+import javax.inject.Inject
+
+class ZipFileParser @Inject constructor() : FileParser {
+
+    override suspend fun parse(file: File): Pair<Book, CoverImage?>? {
+        if (!file.name.endsWith(".zip", true) || !file.exists()) {
+            return null
+        }
+
+        try {
+            var book: Pair<Book, CoverImage?>? = null
+
+            withContext(Dispatchers.IO) {
+                ZipFile(file).use { zip ->
+                    val opfEntry = zip.entries().asSequence().find { entry ->
+                        entry.name.endsWith(".opf")
+                    } ?: return@withContext
+
+                    val opfContent = zip
+                        .getInputStream(opfEntry)
+                        .bufferedReader()
+                        .use { it.readText() }
+                    val document = Jsoup.parse(opfContent)
+
+                    val title = document.select("metadata > dc|title").text().trim().run {
+                        ifBlank {
+                            file.nameWithoutExtension.trim()
+                        }
+                    }
+
+                    val author = document.select("metadata > dc|creator").text().trim().run {
+                        if (isBlank()) {
+                            UIText.StringResource(R.string.unknown_author)
+                        } else {
+                            UIText.StringValue(this)
+                        }
+                    }
+
+                    val description = Jsoup.parse(
+                        document.select("metadata > dc|description").text()
+                    ).text().run {
+                        ifBlank {
+                            null
+                        }
+                    }
+
+                    val coverImage = document
+                        .select("metadata > meta[name=cover]")
+                        .attr("content")
+                        .run {
+                            if (isNotBlank()) {
+                                document
+                                    .select("manifest > item[id=$this]")
+                                    .attr("href")
+                                    .apply { if (isNotBlank()) return@run this }
+                            }
+
+                            document
+                                .select("manifest > item[media-type*=image]")
+                                .firstOrNull()?.attr("href")
+                        }
+
+                    book = Book(
+                        title = title,
+                        author = author,
+                        description = description,
+                        textPath = "",
+                        scrollIndex = 0,
+                        scrollOffset = 0,
+                        progress = 0f,
+                        filePath = file.path,
+                        lastOpened = null,
+                        category = Category.entries[0],
+                        coverImage = null
+                    ) to extractCoverImageBitmap(file, coverImage)
+                }
+            }
+            return book
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return null
+        }
+    }
+}
+
+private fun extractCoverImageBitmap(file: File, coverImagePath: String?): Bitmap? {
+    if (coverImagePath.isNullOrBlank()) {
+        return null
+    }
+
+    ZipFile(file).use { zip ->
+        zip.entries().asSequence().forEach { entry ->
+            if (entry.name.endsWith(coverImagePath)) {
+                val imageBytes = zip.getInputStream(entry).readBytes()
+                return BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.size)
+            }
+        }
+    }
+
+    return null
+}

app/src/main/java/ua/acclorite/book_story/data/parser/zip/ZipTextParser.kt

@@ -0,0 +1,69 @@
+package ua.acclorite.book_story.data.parser.zip
+
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.jsoup.Jsoup
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.data.parser.TextParser
+import ua.acclorite.book_story.domain.util.Resource
+import ua.acclorite.book_story.domain.util.UIText
+import java.io.File
+import java.util.zip.ZipFile
+import javax.inject.Inject
+
+
+class ZipTextParser @Inject constructor() : TextParser {
+
+    override suspend fun parse(file: File): Resource<List<String>> {
+        if (!file.name.endsWith(".zip", true) || !file.exists()) {
+            return Resource.Error(UIText.StringResource(R.string.error_wrong_file_format))
+        }
+
+        try {
+            val lines = mutableListOf<String>()
+
+            withContext(Dispatchers.IO) {
+                ZipFile(file).use { zip ->
+                    zip.entries().asSequence().forEach { entry ->
+                        if (
+                            entry.name.endsWith(".xhtml")
+                            || entry.name.endsWith(".html")
+                            || entry.name.endsWith(".xml")
+                            || entry.name.endsWith(".htm")
+                        ) {
+                            val content = zip.getInputStream(entry).bufferedReader()
+                                .use {
+                                    it.readText()
+                                }
+
+                            val document = Jsoup.parse(content)
+                            document.select("p").append("\n")
+                            document
+                                .wholeText()
+                                .lines()
+                                .forEach { line ->
+                                    if (line.isNotBlank()) {
+                                        lines.add(line.trim())
+                                    }
+                                }
+                        }
+                    }
+                }
+            }
+
+            if (lines.isEmpty()) {
+                return Resource.Error(UIText.StringResource(R.string.error_file_empty))
+            }
+
+            return Resource.Success(lines)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return Resource.Error(
+                UIText.StringResource(
+                    R.string.error_query,
+                    e.message?.take(40)?.trim() ?: ""
+                )
+            )
+        }
+    }
+}

app/src/main/java/ua/acclorite/book_story/domain/util/Constants.kt

@@ -27,497 +27,521 @@ object Constants {
     const val MAIN_STATE = "main_state"
 
     // Supported file extensions
-    val EXTENSIONS = listOf(".epub", ".pdf", ".fb2", ".txt")
+    val EXTENSIONS = provideSupportedExtensions()
 
     // Supported languages
-    val LANGUAGES = listOf(
-        Pair("en", "English"),
-        Pair("uk", "Українська"),
-    )
+    val LANGUAGES = provideLanguages()
 
     // Navigation items for NavigationBars.
-    val NAVIGATION_ITEMS = listOf(
-        NavigationItem(
-            screen = Screen.Library,
-            title = R.string.library_screen,
-            tooltip = R.string.library_content_desc,
-            selectedIcon = R.drawable.library_screen_filled,
-            unselectedIcon = R.drawable.library_screen_outlined
-        ),
-        NavigationItem(
-            screen = Screen.History,
-            title = R.string.history_screen,
-            tooltip = R.string.history_content_desc,
-            selectedIcon = R.drawable.history_screen_filled,
-            unselectedIcon = R.drawable.history_screen_outlined
-        ),
-        NavigationItem(
-            screen = Screen.Browse,
-            title = R.string.browse_screen,
-            tooltip = R.string.browse_content_desc,
-            selectedIcon = R.drawable.browse_screen_filled,
-            unselectedIcon = R.drawable.browse_screen_outlined
-        )
-    )
+    val NAVIGATION_ITEMS = provideNavigationItems()
 
     // Supported themes
-    val THEMES = listOf(
-        Pair(Theme.DYNAMIC, UIText.StringResource(R.string.dynamic_theme)),
-        Pair(Theme.BLUE, UIText.StringResource(R.string.blue_theme)),
-        Pair(Theme.GREEN, UIText.StringResource(R.string.green_theme)),
-        Pair(Theme.RED, UIText.StringResource(R.string.red_theme)),
-        Pair(Theme.PURPLE, UIText.StringResource(R.string.purple_theme)),
-        Pair(Theme.PINK, UIText.StringResource(R.string.pink_theme)),
-        Pair(Theme.YELLOW, UIText.StringResource(R.string.yellow_theme)),
-        Pair(Theme.AQUA, UIText.StringResource(R.string.aqua_theme)),
-    )
+    val THEMES = provideThemes()
 
     // Credits
-    val CREDITS = listOf(
-        Credit(
-            name = "Tachiyomi (Mihon)",
-            source = "GitHub",
-            credits = listOf(
-                UIText.StringResource(R.string.credits_design),
-                UIText.StringValue("Readme")
-            ),
-            website = "https://www.github.com/mihonapp/mihon"
-        ),
-        Credit(
-            name = "Kitsune",
-            source = "GitHub",
-            credits = listOf(
-                UIText.StringResource(R.string.credits_updates)
-            ),
-            website = "https://www.github.com/Drumber/Kitsune"
-        ),
-        Credit(
-            name = "Material Design Icons",
-            source = "Google Fonts",
-            credits = listOf(
-                UIText.StringResource(R.string.credits_icon)
-            ),
-            website = "https://fonts.google.com/icons"
-        ),
-    )
+    val CREDITS = provideCredits()
 
     // Help Tips
-    val HELP_TIPS = listOf(
-        HelpTip(
-            title = R.string.help_title_how_to_find_books,
-            description = { _, _ ->
-                append(stringResource(id = R.string.help_desc_how_to_find_books))
-            },
-            customContent = { onHelpEvent ->
-                HelpFindBooksContent(onEvent = onHelpEvent)
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_add_books,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_add_books_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Browse, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_add_books_2))
-                }
-                append(". ")
-
-                append(stringResource(id = R.string.help_desc_how_to_add_books_3) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Library, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_add_books_4))
-                }
-                append(".")
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_customize_app,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_customize_app_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Settings, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_customize_app_2))
-                }
-                append(". ")
-
-                append(stringResource(id = R.string.help_desc_how_to_customize_app_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_move_or_delete_books,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Library, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_2))
-                }
-                append(". ")
-
-                append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_edit_book,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_edit_book_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Library, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_edit_book_2))
-                }
-                append(" ")
-
-                append(stringResource(id = R.string.help_desc_how_to_edit_book_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_read_book,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_read_book_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Library, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_read_book_2))
-                }
-                append(". ")
-
-                append(stringResource(id = R.string.help_desc_how_to_read_book_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_customize_reader,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_customize_reader_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Settings, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_customize_reader_2))
-                }
-                append(" ")
-
-                append(stringResource(id = R.string.help_desc_how_to_customize_reader_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_update_book,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_update_book_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.Library, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_update_book_2))
-                }
-                append(" ")
-
-                append(stringResource(id = R.string.help_desc_how_to_update_book_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_manage_history,
-            description = { onNavigate, fromStart ->
-                append(stringResource(id = R.string.help_desc_how_to_manage_history_1) + " ")
-
-                HelpAnnotation(
-                    onClick = {
-                        if (!fromStart) {
-                            onNavigate {
-                                navigate(Screen.History, useBackAnimation = true)
-                            }
-                        }
-                    }
-                ) {
-                    append(stringResource(id = R.string.help_desc_how_to_manage_history_2))
-                }
-                append(". ")
-
-                append(stringResource(id = R.string.help_desc_how_to_manage_history_3))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_use_tooltip,
-            description = { _, _ ->
-                append(stringResource(id = R.string.help_desc_how_to_use_tooltip_1))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_use_double_click_translation,
-            description = { _, _ ->
-                append(stringResource(id = R.string.help_desc_how_to_use_double_click_translation_1))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_create_color_presets,
-            description = { _, _ ->
-                append(stringResource(id = R.string.help_desc_how_to_create_color_presets_1))
-            }
-        ),
-
-        HelpTip(
-            title = R.string.help_title_how_to_use_color_presets,
-            description = { _, _ ->
-                append(stringResource(id = R.string.help_desc_how_to_use_color_presets_1))
-            }
-        ),
-    )
+    val HELP_TIPS = provideHelpTips()
 
     // About Badges
-    val ABOUT_BADGES = listOf(
-        Badge(
-            id = "x",
-            drawable = R.drawable.x_logo,
-            imageVector = null,
-            contentDescription = R.string.x_content_desc,
-            url = "https://www.x.com/acclorite"
-        ),
-        Badge(
-            id = "reddit",
-            drawable = R.drawable.reddit,
-            imageVector = null,
-            contentDescription = R.string.reddit_content_desc,
-            url = "https://www.reddit.com/user/Acclorite/"
-        ),
-        Badge(
-            id = "tryzub",
-            drawable = R.drawable.tryzub,
-            imageVector = null,
-            contentDescription = R.string.tryzub_content_desc,
-            url = null
-        ),
-        Badge(
-            id = "github_project",
-            drawable = R.drawable.github,
-            imageVector = null,
-            contentDescription = R.string.github_project_content_desc,
-            url = "https://www.github.com/Acclorite/book-story"
-        ),
-        Badge(
-            id = "github_profile",
-            drawable = null,
-            imageVector = Icons.Default.Person,
-            contentDescription = R.string.github_profile_content_desc,
-            url = "https://www.github.com/Acclorite"
-        ),
-    )
+    val ABOUT_BADGES = provideAboutBadges()
 
     // Fonts for Reader
-    val FONTS = listOf(
-        FontWithName(
-            "default",
-            UIText.StringResource(R.string.default_font),
-            FontFamily.Default
+    val FONTS = provideFonts()
+
+    // Empty Book (Used for Default Screen values)
+    val EMPTY_BOOK = provideEmptyBook()
+
+    // Default Color Preset (Used when creating new color presets)
+    val DEFAULT_COLOR_PRESET = provideDefaultColorPreset()
+}
+
+private fun provideSupportedExtensions() = listOf(
+    ".epub", ".pdf", ".fb2", ".txt", ".zip", ".html", ".htm"
+)
+
+private fun provideLanguages() = listOf(
+    Pair("en", "English"),
+    Pair("uk", "Українська"),
+)
+
+private fun provideNavigationItems() = listOf(
+    NavigationItem(
+        screen = Screen.Library,
+        title = R.string.library_screen,
+        tooltip = R.string.library_content_desc,
+        selectedIcon = R.drawable.library_screen_filled,
+        unselectedIcon = R.drawable.library_screen_outlined
+    ),
+    NavigationItem(
+        screen = Screen.History,
+        title = R.string.history_screen,
+        tooltip = R.string.history_content_desc,
+        selectedIcon = R.drawable.history_screen_filled,
+        unselectedIcon = R.drawable.history_screen_outlined
+    ),
+    NavigationItem(
+        screen = Screen.Browse,
+        title = R.string.browse_screen,
+        tooltip = R.string.browse_content_desc,
+        selectedIcon = R.drawable.browse_screen_filled,
+        unselectedIcon = R.drawable.browse_screen_outlined
+    )
+)
+
+private fun provideThemes() = listOf(
+    Pair(Theme.DYNAMIC, UIText.StringResource(R.string.dynamic_theme)),
+    Pair(Theme.BLUE, UIText.StringResource(R.string.blue_theme)),
+    Pair(Theme.GREEN, UIText.StringResource(R.string.green_theme)),
+    Pair(Theme.RED, UIText.StringResource(R.string.red_theme)),
+    Pair(Theme.PURPLE, UIText.StringResource(R.string.purple_theme)),
+    Pair(Theme.PINK, UIText.StringResource(R.string.pink_theme)),
+    Pair(Theme.YELLOW, UIText.StringResource(R.string.yellow_theme)),
+    Pair(Theme.AQUA, UIText.StringResource(R.string.aqua_theme)),
+)
+
+private fun provideCredits() = listOf(
+    Credit(
+        name = "Tachiyomi (Mihon)",
+        source = "GitHub",
+        credits = listOf(
+            UIText.StringResource(R.string.credits_design),
+            UIText.StringValue("Readme")
         ),
-        FontWithName(
-            "raleway",
-            UIText.StringValue("Raleway"),
-            FontFamily(
-                Font(R.font.raleway_regular),
-                Font(R.font.raleway_regular_italic, style = FontStyle.Italic)
-            )
+        website = "https://www.github.com/mihonapp/mihon"
+    ),
+    Credit(
+        name = "Kitsune",
+        source = "GitHub",
+        credits = listOf(
+            UIText.StringResource(R.string.credits_updates)
         ),
-        FontWithName(
-            "open_sans",
-            UIText.StringValue("Open Sans"),
-            FontFamily(
-                Font(R.font.opensans_regular),
-                Font(R.font.opensans_regular_italic, style = FontStyle.Italic)
-            )
+        website = "https://www.github.com/Drumber/Kitsune"
+    ),
+    Credit(
+        name = "Material Design Icons",
+        source = "Google Fonts",
+        credits = listOf(
+            UIText.StringResource(R.string.credits_icon)
         ),
-        FontWithName(
-            "mulish",
-            UIText.StringValue("Mulish"),
-            FontFamily(
-                Font(R.font.mulish_regular),
-                Font(R.font.mulish_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "arimo",
-            UIText.StringValue("Arimo"),
-            FontFamily(
-                Font(R.font.arimo_regular),
-                Font(R.font.arimo_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "garamond",
-            UIText.StringValue("Garamond"),
-            FontFamily(
-                Font(R.font.garamond_regular),
-                Font(R.font.garamond_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "roboto_serif",
-            UIText.StringValue("Roboto Serif"),
-            FontFamily(
-                Font(R.font.robotoserif_regular),
-                Font(R.font.robotoserif_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "noto_serif",
-            UIText.StringValue("Noto Serif"),
-            FontFamily(
-                Font(R.font.notoserif_regular),
-                Font(R.font.notoserif_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "noto_sans",
-            UIText.StringValue("Noto Sans"),
-            FontFamily(
-                Font(R.font.notosans_regular),
-                Font(R.font.notosans_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "roboto",
-            UIText.StringValue("Roboto"),
-            FontFamily(
-                Font(R.font.roboto_regular),
-                Font(R.font.roboto_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "jost",
-            UIText.StringValue("Jost"),
-            FontFamily(
-                Font(R.font.jost_regular),
-                Font(R.font.jost_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "merriweather",
-            UIText.StringValue("Merriweather"),
-            FontFamily(
-                Font(R.font.merriweather_regular),
-                Font(R.font.merriweather_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "montserrat",
-            UIText.StringValue("Montserrat"),
-            FontFamily(
-                Font(R.font.montserrat_regular),
-                Font(R.font.montserrat_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "nunito",
-            UIText.StringValue("Nunito"),
-            FontFamily(
-                Font(R.font.nunito_regular),
-                Font(R.font.nunito_regular_italic, style = FontStyle.Italic)
-            )
-        ),
-        FontWithName(
-            "roboto_slab",
-            UIText.StringValue("Roboto Slab"),
-            FontFamily(
-                Font(R.font.robotoslab_regular)
-            )
-        ),
-        FontWithName(
-            "lora",
-            UIText.StringValue("Lora"),
-            FontFamily(
-                Font(R.font.lora_regular),
-                Font(R.font.lora_regular_italic, style = FontStyle.Italic)
-            )
+        website = "https://fonts.google.com/icons"
+    ),
+)
+
+private fun provideHelpTips() = listOf(
+    HelpTip(
+        title = R.string.help_title_how_to_find_books,
+        description = { _, _ ->
+            append(stringResource(id = R.string.help_desc_how_to_find_books))
+        },
+        customContent = { onHelpEvent ->
+            HelpFindBooksContent(onEvent = onHelpEvent)
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_add_books,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_add_books_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Browse, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_add_books_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_add_books_3) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Library, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_add_books_4))
+            }
+            append(".")
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_customize_app,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_customize_app_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Settings, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_customize_app_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_customize_app_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_move_or_delete_books,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Library, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_edit_book,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_edit_book_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Library, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_edit_book_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_edit_book_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_read_book,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_read_book_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Library, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_read_book_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_read_book_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_customize_reader,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_customize_reader_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Settings, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_customize_reader_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_customize_reader_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_update_book,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_update_book_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.Library, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_update_book_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_update_book_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_manage_history,
+        description = { onNavigate, fromStart ->
+            append(stringResource(id = R.string.help_desc_how_to_manage_history_1) + " ")
+
+            HelpAnnotation(
+                onClick = {
+                    if (!fromStart) {
+                        onNavigate {
+                            navigate(Screen.History, useBackAnimation = true)
+                        }
+                    }
+                }
+            ) {
+                append(stringResource(id = R.string.help_desc_how_to_manage_history_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_manage_history_3))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_use_tooltip,
+        description = { _, _ ->
+            append(stringResource(id = R.string.help_desc_how_to_use_tooltip_1))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_use_double_click_translation,
+        description = { _, _ ->
+            append(stringResource(id = R.string.help_desc_how_to_use_double_click_translation_1))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_create_color_presets,
+        description = { _, _ ->
+            append(stringResource(id = R.string.help_desc_how_to_create_color_presets_1))
+        }
+    ),
+
+    HelpTip(
+        title = R.string.help_title_how_to_use_color_presets,
+        description = { _, _ ->
+            append(stringResource(id = R.string.help_desc_how_to_use_color_presets_1))
+        }
+    ),
+)
+
+private fun provideAboutBadges() = listOf(
+    Badge(
+        id = "x",
+        drawable = R.drawable.x_logo,
+        imageVector = null,
+        contentDescription = R.string.x_content_desc,
+        url = "https://www.x.com/acclorite"
+    ),
+    Badge(
+        id = "reddit",
+        drawable = R.drawable.reddit,
+        imageVector = null,
+        contentDescription = R.string.reddit_content_desc,
+        url = "https://www.reddit.com/user/Acclorite/"
+    ),
+    Badge(
+        id = "tryzub",
+        drawable = R.drawable.tryzub,
+        imageVector = null,
+        contentDescription = R.string.tryzub_content_desc,
+        url = null
+    ),
+    Badge(
+        id = "github_project",
+        drawable = R.drawable.github,
+        imageVector = null,
+        contentDescription = R.string.github_project_content_desc,
+        url = "https://www.github.com/Acclorite/book-story"
+    ),
+    Badge(
+        id = "github_profile",
+        drawable = null,
+        imageVector = Icons.Default.Person,
+        contentDescription = R.string.github_profile_content_desc,
+        url = "https://www.github.com/Acclorite"
+    ),
+)
+
+private fun provideFonts() = listOf(
+    FontWithName(
+        "default",
+        UIText.StringResource(R.string.default_font),
+        FontFamily.Default
+    ),
+    FontWithName(
+        "raleway",
+        UIText.StringValue("Raleway"),
+        FontFamily(
+            Font(R.font.raleway_regular),
+            Font(R.font.raleway_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "open_sans",
+        UIText.StringValue("Open Sans"),
+        FontFamily(
+            Font(R.font.opensans_regular),
+            Font(R.font.opensans_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "mulish",
+        UIText.StringValue("Mulish"),
+        FontFamily(
+            Font(R.font.mulish_regular),
+            Font(R.font.mulish_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "arimo",
+        UIText.StringValue("Arimo"),
+        FontFamily(
+            Font(R.font.arimo_regular),
+            Font(R.font.arimo_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "garamond",
+        UIText.StringValue("Garamond"),
+        FontFamily(
+            Font(R.font.garamond_regular),
+            Font(R.font.garamond_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "roboto_serif",
+        UIText.StringValue("Roboto Serif"),
+        FontFamily(
+            Font(R.font.robotoserif_regular),
+            Font(R.font.robotoserif_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "noto_serif",
+        UIText.StringValue("Noto Serif"),
+        FontFamily(
+            Font(R.font.notoserif_regular),
+            Font(R.font.notoserif_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "noto_sans",
+        UIText.StringValue("Noto Sans"),
+        FontFamily(
+            Font(R.font.notosans_regular),
+            Font(R.font.notosans_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "roboto",
+        UIText.StringValue("Roboto"),
+        FontFamily(
+            Font(R.font.roboto_regular),
+            Font(R.font.roboto_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "jost",
+        UIText.StringValue("Jost"),
+        FontFamily(
+            Font(R.font.jost_regular),
+            Font(R.font.jost_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "merriweather",
+        UIText.StringValue("Merriweather"),
+        FontFamily(
+            Font(R.font.merriweather_regular),
+            Font(R.font.merriweather_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "montserrat",
+        UIText.StringValue("Montserrat"),
+        FontFamily(
+            Font(R.font.montserrat_regular),
+            Font(R.font.montserrat_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "nunito",
+        UIText.StringValue("Nunito"),
+        FontFamily(
+            Font(R.font.nunito_regular),
+            Font(R.font.nunito_regular_italic, style = FontStyle.Italic)
+        )
+    ),
+    FontWithName(
+        "roboto_slab",
+        UIText.StringValue("Roboto Slab"),
+        FontFamily(
+            Font(R.font.robotoslab_regular)
+        )
+    ),
+    FontWithName(
+        "lora",
+        UIText.StringValue("Lora"),
+        FontFamily(
+            Font(R.font.lora_regular),
+            Font(R.font.lora_regular_italic, style = FontStyle.Italic)
         )
     )
+)
 
-    val EMPTY_BOOK = Book(
-        id = -1,
-        title = "",
-        author = UIText.StringValue(""),
-        description = null,
-        textPath = "",
-        filePath = "",
-        coverImage = null,
-        scrollIndex = 0,
-        scrollOffset = 0,
-        progress = 0f,
-        lastOpened = null,
-        category = Category.READING
-    )
+private fun provideEmptyBook() = Book(
+    id = -1,
+    title = "",
+    author = UIText.StringValue(""),
+    description = null,
+    textPath = "",
+    filePath = "",
+    coverImage = null,
+    scrollIndex = 0,
+    scrollOffset = 0,
+    progress = 0f,
+    lastOpened = null,
+    category = Category.READING
+)
 
-    val DEFAULT_COLOR_PRESET = ColorPreset(
-        id = -1,
-        name = null,
-        backgroundColor = Color.DarkGray,
-        fontColor = Color.LightGray,
-        isSelected = false
-    )
-}
+private fun provideDefaultColorPreset() = ColorPreset(
+    id = -1,
+    name = null,
+    backgroundColor = Color.DarkGray,
+    fontColor = Color.LightGray,
+    isSelected = false
+)