Add PetitLyric Source (#247)

* Petit Lyric Source

* Fix Error

* Better Description

* Use App API (Add support for Time Synced)

* Remove Debug statments

* Update Description

Sources/EeveeSpotify/Lyrics/CustomLyrics.x.swift

@@ -147,6 +147,7 @@ func getCurrentTrackLyricsData(originalLyrics: Lyrics? = nil) throws -> Data {
         case .genius: GeniusLyricsRepository()
         case .lrclib: LrcLibLyricsRepository()
         case .musixmatch: MusixmatchLyricsRepository.shared
+        case .petitLyrics: PetitLyricsRepository()
     }
 
     let lyricsDto: LyricsDto

Sources/EeveeSpotify/Lyrics/Models/Settings/LyricsSource.swift

@@ -4,12 +4,14 @@ enum LyricsSource : Int, CustomStringConvertible {
     case genius
     case lrclib
     case musixmatch
+    case petitLyrics
 
     var description : String { 
         switch self {
         case .genius: "Genius"
         case .lrclib: "LRCLIB"
         case .musixmatch: "Musixmatch"
+        case .petitLyrics: "Petit Lyrics"
         }
     }
-}
+}

Sources/EeveeSpotify/Lyrics/Repositories/PetitLyricsRepository.swift

@@ -0,0 +1,208 @@
+import Foundation
+
+class XMLDictionaryParser: NSObject, XMLParserDelegate {
+    private var dictionaryStack: [[String: Any]] = []
+    private var textInProgress: String = ""
+
+    func parse(data: Data) -> [String: Any]? {
+        let parser = XMLParser(data: data)
+        parser.delegate = self
+        guard parser.parse() else {
+            NSLog("[EeveeSpotify] Failed to parse XML")
+            return nil
+        }
+        return dictionaryStack.first
+    }
+
+    // MARK: - XMLParserDelegate
+
+    func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String]) {
+        var dict: [String: Any] = [:]
+        for (key, value) in attributeDict {
+            if let intValue = Int(value) {
+                dict[key] = intValue
+            } else {
+                dict[key] = value
+            }
+        }
+        dictionaryStack.append(dict)
+        textInProgress = ""
+    }
+
+    func parser(_ parser: XMLParser, foundCharacters string: String) {
+        textInProgress += string
+    }
+
+    func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
+        var dict = dictionaryStack.popLast()!
+        if !textInProgress.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
+            if let intValue = Int(textInProgress.trimmingCharacters(in: .whitespacesAndNewlines)) {
+                dict[elementName] = intValue
+            } else {
+                dict[elementName] = textInProgress.trimmingCharacters(in: .whitespacesAndNewlines)
+            }
+        }
+
+        if var top = dictionaryStack.last {
+            if let existingValue = top[elementName] {
+                if var array = existingValue as? [[String: Any]] {
+                    array.append(dict)
+                    top[elementName] = array
+                } else {
+                    top[elementName] = [existingValue, dict]
+                }
+            } else if dict.count == 1, let key = dict.keys.first, let value = dict[key] {
+                top[elementName] = value
+            } else {
+                top[elementName] = dict
+            }
+            dictionaryStack[dictionaryStack.count - 1] = top
+        } else {
+            dictionaryStack.append(dict)
+        }
+        textInProgress = ""
+    }
+}
+
+struct PetitLyricsRepository: LyricsRepository {
+    private let apiUrl = "https://p1.petitlyrics.com/api/GetPetitLyricsData.php"
+    private let session: URLSession
+
+    init() {
+        let configuration = URLSessionConfiguration.default
+        configuration.httpAdditionalHeaders = [
+            "Content-Type": "application/x-www-form-urlencoded",
+            "User-Agent": "EeveeSpotify v\(EeveeSpotify.version) https://github.com/whoeevee/EeveeSpotify"
+        ]
+
+        session = URLSession(configuration: configuration)
+    }
+
+    private func perform(
+        _ query: [String: Any]
+    ) throws -> Data {
+        var request = URLRequest(url: URL(string: apiUrl)!)
+        request.httpMethod = "POST"
+
+        let queryString = query.queryString
+        request.httpBody = queryString.data(using: .utf8)
+
+        let semaphore = DispatchSemaphore(value: 0)
+        var data: Data?
+        var error: Error?
+
+        let task = session.dataTask(with: request) { response, _, err in
+            error = err
+            data = response
+            semaphore.signal()
+        }
+
+        task.resume()
+        semaphore.wait()
+
+        if let error = error {
+            throw error
+        }
+
+        return data!
+    }
+
+    private func decodeBase64(_ base64String: String) throws -> Data {
+        guard let data = Data(base64Encoded: base64String) else {
+            throw LyricsError.DecodingError
+        }
+        return data
+    }
+
+    private func mapTimeSyncedLyrics(_ xmlData: Data) throws -> [LyricsLineDto] {
+        guard let parsedDictionary = XMLDictionaryParser().parse(data: xmlData),
+              let lines = parsedDictionary["line"] as? [[String: Any]] else {
+            throw LyricsError.DecodingError
+        }
+
+        var lyricsLines: [LyricsLineDto] = []
+        for line in lines {
+            guard let lineString = line["linestring"] as? String,
+                  let words = line["word"] as? [[String: Any]],
+                  let firstWord = words.first,
+                  let startTimeInt = firstWord["starttime"] as? Int else {
+                  continue // Skip lines that don't have necessary data
+            }
+
+            let lyricsLineDto = LyricsLineDto(content: lineString, offsetMs: startTimeInt)
+            lyricsLines.append(lyricsLineDto)
+        }
+
+        return lyricsLines
+    }
+
+    func getLyrics(_ query: LyricsSearchQuery, options: LyricsOptions) throws -> LyricsDto {
+        var petitLyricsQuery = [
+            "maxCount": "1",
+            "key_title": query.title,
+            "key_artist": query.primaryArtist,
+            "terminalType": "10",
+            "clientAppId": "p1232089",
+            "lyricsType": "3"
+        ]
+
+        let response = try perform(petitLyricsQuery)
+        let parser = XMLDictionaryParser()
+        let parsedDictionary = parser.parse(data: response)
+
+        guard let parsedDict = parsedDictionary,
+              let songs = parsedDict["songs"] as? [String: Any],
+              let song = songs["song"] as? [String: Any] else {
+            throw LyricsError.NoSuchSong
+        }
+
+
+        guard let lyricsDataBase64 = song["lyricsData"] as? String,
+              let lyricsType = song["lyricsType"] as? Int else {
+            throw LyricsError.DecodingError
+        }
+
+
+        let lyricsData = try decodeBase64(lyricsDataBase64)
+
+        if lyricsType == 2 {
+            petitLyricsQuery["lyricsType"] = "1"
+            let responsetype1 = try perform(petitLyricsQuery)
+            let parser = XMLDictionaryParser()
+            guard let parsedDictionary1 = parser.parse(data: responsetype1) else {
+                throw LyricsError.DecodingError
+            }
+
+            guard let songs = parsedDictionary1["songs"] as? [String: Any],
+                  let song = songs["song"] as? [String: Any],
+                  let lyricsDataBase64 = song["lyricsData"] as? String else {
+                throw LyricsError.DecodingError
+            }
+
+            let lyricsData = try decodeBase64(lyricsDataBase64)
+            let lines = String(data: lyricsData, encoding: .utf8)?
+                .components(separatedBy: "\n")
+                .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+                .filter { !$0.isEmpty }
+                .map { LyricsLineDto(content: $0) } ?? []
+            return LyricsDto(lines: lines, timeSynced: false)
+        }
+
+        if lyricsType == 1 {
+            let lines = String(data: lyricsData, encoding: .utf8)?
+                .components(separatedBy: "\n")
+                .map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+                .filter { !$0.isEmpty }
+                .map { LyricsLineDto(content: $0) } ?? []
+            return LyricsDto(lines: lines, timeSynced: false)
+
+        }
+
+        if lyricsType == 3 {
+            let lines = try mapTimeSyncedLyrics(lyricsData)
+            return LyricsDto(lines: lines, timeSynced: true)
+        }
+
+        throw LyricsError.DecodingError
+    }
+}

Sources/EeveeSpotify/Settings/Views/Sections/EeveeLyricsSettingsView+LyricsSourceSection.swift

@@ -12,6 +12,8 @@ LRCLIB: The most open service, offering time-synced lyrics. However, it lacks ly
 
 Musixmatch: The service Spotify uses. Provides time-synced lyrics for many songs, but you'll need a user token to use this source.
 
+Petit Lyrics: Has a large database of time-synced Japanese and international songs. Lacks several Western songs. 
+
 If the tweak is unable to find a song or process the lyrics, you'll see a "Couldn't load the lyrics for this song" message. The lyrics might be wrong for some songs when using Genius due to how the tweak searches songs. I've made it work in most cases.
 """)) {
             Picker(
@@ -21,6 +23,7 @@ If the tweak is unable to find a song or process the lyrics, you'll see a "Could
                 Text("Genius").tag(LyricsSource.genius)
                 Text("LRCLIB").tag(LyricsSource.lrclib)
                 Text("Musixmatch").tag(LyricsSource.musixmatch)
+                Text("Petit Lyrics").tag(LyricsSource.petitLyrics)
             }
 
             if lyricsSource == .musixmatch {
@@ -60,4 +63,3 @@ If the tweak is unable to find a song or process the lyrics, you'll see a "Could
         }
     }
 }
-