Feat: Add Saved Filters Feature
MuhamadSyabitHidayattulloh
parent
a66283d035
commit
5fb8ff53f9
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package org.koitharu.kotatsu.filter.data
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import android.content.SharedPreferences
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import androidx.core.content.edit
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import androidx.preference.PreferenceManager
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import dagger.hilt.android.qualifiers.ApplicationContext
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.flow.StateFlow
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import kotlinx.coroutines.launch
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import org.json.JSONArray
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import org.json.JSONObject
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import org.koitharu.kotatsu.parsers.model.ContentRating
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import org.koitharu.kotatsu.parsers.model.ContentType
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import org.koitharu.kotatsu.parsers.model.Demographic
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import org.koitharu.kotatsu.parsers.model.MangaListFilter
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import org.koitharu.kotatsu.parsers.model.MangaTag
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import org.koitharu.kotatsu.parsers.model.MangaState
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import java.util.Locale
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import javax.inject.Inject
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import javax.inject.Singleton
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import android.content.Context
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@Singleton
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class SavedFiltersRepository @Inject constructor(
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@ApplicationContext context: Context,
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) {
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private val prefs: SharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
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private val scope = CoroutineScope(Dispatchers.Default)
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private val keyRoot = "saved_filters_v1"
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private val state = MutableStateFlow<Map<String, List<Preset>>>(emptyMap())
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init {
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scope.launch { loadAll() }
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}
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data class Preset(
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val id: Long,
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val name: String,
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val source: String,
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val payload: JSONObject,
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)
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fun observe(source: String): StateFlow<List<Preset>> = MutableStateFlow(state.value[source].orEmpty()).also { out ->
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scope.launch {
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state.collect { all -> out.value = all[source].orEmpty() }
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}
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}
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fun list(source: String): List<Preset> = state.value[source].orEmpty()
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fun save(source: String, name: String, filter: MangaListFilter): Preset {
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val nowId = System.currentTimeMillis()
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val preset = Preset(
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id = nowId,
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name = name,
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source = source,
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payload = serializeFilter(filter),
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)
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val list = list(source) + preset
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persist(source, list)
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return preset
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}
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fun rename(source: String, id: Long, newName: String) {
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val list = list(source).map { if (it.id == id) it.copy(name = newName) else it }
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persist(source, list)
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}
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fun delete(source: String, id: Long) {
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val list = list(source).filterNot { it.id == id }
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persist(source, list)
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}
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private fun persist(source: String, list: List<Preset>) {
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val root = JSONObject(prefs.getString(keyRoot, "{}"))
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root.put(source, JSONArray(list.map { presetToJson(it) }))
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prefs.edit { putString(keyRoot, root.toString()) }
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state.value = state.value.toMutableMap().also { it[source] = list }
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}
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private fun loadAll() {
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val root = JSONObject(prefs.getString(keyRoot, "{}"))
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val map = mutableMapOf<String, List<Preset>>()
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for (key in root.keys()) {
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val arr = root.optJSONArray(key) ?: continue
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map[key] = (0 until arr.length()).mapNotNull { i -> jsonToPreset(arr.optJSONObject(i), key) }
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}
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state.value = map
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}
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private fun presetToJson(p: Preset): JSONObject = JSONObject().apply {
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put("id", p.id)
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put("name", p.name)
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put("payload", p.payload)
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}
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private fun jsonToPreset(obj: JSONObject?, source: String): Preset? {
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obj ?: return null
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val id = obj.optLong("id", 0L)
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val name = obj.optString("name", null) ?: return null
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val payload = obj.optJSONObject("payload") ?: return null
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return Preset(id, name, source, payload)
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}
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fun serializeFilter(f: MangaListFilter): JSONObject = JSONObject().apply {
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put("query", f.query)
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put("author", f.author)
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put("locale", f.locale?.toLanguageTag())
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put("originalLocale", f.originalLocale?.toLanguageTag())
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put("states", JSONArray(f.states.map { it.name }))
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put("contentRating", JSONArray(f.contentRating.map { it.name }))
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put("types", JSONArray(f.types.map { it.name }))
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put("demographics", JSONArray(f.demographics.map { it.name }))
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put("tags", JSONArray(f.tags.map { it.key }))
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put("tagsExclude", JSONArray(f.tagsExclude.map { it.key }))
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put("year", f.year)
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put("yearFrom", f.yearFrom)
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put("yearTo", f.yearTo)
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}
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fun deserializeFilter(
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obj: JSONObject,
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resolveTags: (Set<String>) -> Set<MangaTag>,
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): MangaListFilter {
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return MangaListFilter(
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query = obj.optString("query").takeIf { it.isNotEmpty() },
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author = obj.optString("author").takeIf { it.isNotEmpty() },
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locale = obj.optString("locale").takeIf { it.isNotEmpty() }?.let { Locale.forLanguageTag(it) },
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originalLocale = obj.optString("originalLocale").takeIf { it.isNotEmpty() }?.let { Locale.forLanguageTag(it) },
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states = obj.optJSONArray("states")?.toStringSet()?.mapNotNull { runCatching { MangaState.valueOf(it) }.getOrNull() }?.toSet().orEmpty(),
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contentRating = obj.optJSONArray("contentRating")?.toStringSet()?.mapNotNull { runCatching { ContentRating.valueOf(it) }.getOrNull() }?.toSet().orEmpty(),
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types = obj.optJSONArray("types")?.toStringSet()?.mapNotNull { runCatching { ContentType.valueOf(it) }.getOrNull() }?.toSet().orEmpty(),
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demographics = obj.optJSONArray("demographics")?.toStringSet()?.mapNotNull { runCatching { Demographic.valueOf(it) }.getOrNull() }?.toSet().orEmpty(),
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tags = resolveTags(obj.optJSONArray("tags")?.toStringSet().orEmpty()).toSet(),
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tagsExclude = resolveTags(obj.optJSONArray("tagsExclude")?.toStringSet().orEmpty()).toSet(),
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year = obj.optInt("year"),
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yearFrom = obj.optInt("yearFrom"),
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yearTo = obj.optInt("yearTo"),
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)
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}
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}
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private fun JSONArray.toStringSet(): Set<String> = buildSet {
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for (i in 0 until length()) {
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val v = optString(i)
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if (!v.isNullOrEmpty()) add(v)
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}
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}
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