feat: add wikipedia picture of the day

app/src/main/java/com/bnyro/wallpaper/App.kt

@@ -14,6 +14,7 @@ import com.bnyro.wallpaper.api.re.ReApi
 import com.bnyro.wallpaper.api.sp.SpApi
 import com.bnyro.wallpaper.api.us.UsApi
 import com.bnyro.wallpaper.api.wh.WhApi
+import com.bnyro.wallpaper.api.wi.WiAPi
 import com.bnyro.wallpaper.db.DatabaseHolder
 import com.bnyro.wallpaper.util.Preferences
 
@@ -48,6 +49,6 @@ class App : Application(), ImageLoaderFactory {
 
     companion object {
         val apis =
-            listOf(WhApi(), OwApi(), UsApi(), BiApi(), ReApi(), LeApi(), PxApi(), SpApi(), NaApi(), PsApi())
+            listOf(WhApi(), OwApi(), UsApi(), BiApi(), ReApi(), LeApi(), PxApi(), SpApi(), NaApi(), WiAPi(), PsApi())
     }
 }

app/src/main/java/com/bnyro/wallpaper/api/wi/WiAPi.kt

@@ -0,0 +1,57 @@
+package com.bnyro.wallpaper.api.wi
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Today
+import androidx.compose.ui.graphics.vector.ImageVector
+import com.bnyro.wallpaper.api.Api
+import com.bnyro.wallpaper.db.obj.Wallpaper
+import com.bnyro.wallpaper.util.RetrofitHelper
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
+
+class WiAPi : Api() {
+    override val name = "Wikipedia POTD"
+    override val icon: ImageVector = Icons.Default.Today
+    override val baseUrl = "https://en.wikipedia.org"
+
+    private val api = RetrofitHelper.create(baseUrl, WikiPOTD::class.java)
+    private val dateFormat = DateTimeFormatter.ofPattern("yyyy-MM-dd")
+
+    override suspend fun getWallpapers(page: Int): List<Wallpaper> {
+        val now = LocalDate.now()
+        val dates = mutableListOf<String>()
+
+        for (i in 0 until PAGE_SIZE) {
+            val offset = (page - 1) * PAGE_SIZE + i
+            val date = now.minusDays(offset.toLong())
+            dates.add(date.format(dateFormat))
+        }
+
+        val titles = dates.map { POTD_ARTICLE_PREFIX + it }
+        return api.getImages(titles = titles.joinToString("|")).query.pages.values
+            .filter { it.imageInfo.isNotEmpty() }
+            .map { image ->
+                val imageInfo = image.imageInfo.first()
+
+                Wallpaper(
+                    imgSrc = imageInfo.url,
+                    url = imageInfo.descriptionUrl,
+                    title = image.title.substringAfter(":").substringBeforeLast("."),
+                    resolution = "${imageInfo.width}x${imageInfo.height}",
+                    thumb = imageInfo.thumbUrl
+                )
+            }
+    }
+
+    override suspend fun getRandomWallpaperUrl(): String? {
+        val today = LocalDate.now().format(dateFormat)
+
+        return api.getImages(titles = POTD_ARTICLE_PREFIX + today).query.pages.values.firstOrNull()
+            ?.imageInfo?.firstOrNull()?.url
+    }
+
+    companion object {
+        private const val POTD_ARTICLE_PREFIX = "Template:POTD/"
+        private const val PAGE_SIZE = 10
+    }
+}

app/src/main/java/com/bnyro/wallpaper/api/wi/WikiPOTD.kt

@@ -0,0 +1,18 @@
+package com.bnyro.wallpaper.api.wi
+
+import com.bnyro.wallpaper.api.wi.obj.WikiImagesResponse
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface WikiPOTD {
+    @GET("w/api.php")
+    suspend fun getImages(
+        @Query("action") action: String = "query",
+        @Query("format") format: String = "json",
+        @Query("generator") generator: String = "images",
+        @Query("prop") prop: String = "imageinfo",
+        @Query("iiprop") iiProp: String = "url|size",
+        @Query("iiurlwidth") iiUrlWidth: String = "300",
+        @Query("titles") titles: String, // separated by "|"
+    ): WikiImagesResponse
+}

app/src/main/java/com/bnyro/wallpaper/api/wi/obj/WikiImageInfo.kt

@@ -0,0 +1,14 @@
+package com.bnyro.wallpaper.api.wi.obj
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WikiImageInfo(
+    @SerialName("descriptionshorturl") val descriptionShortUrl: String,
+    @SerialName("descriptionurl") val descriptionUrl: String,
+    val url: String,
+    val width: Int,
+    val height: Int,
+    @SerialName("thumburl") val thumbUrl: String? = null
+)

app/src/main/java/com/bnyro/wallpaper/api/wi/obj/WikiImagePage.kt

@@ -0,0 +1,13 @@
+package com.bnyro.wallpaper.api.wi.obj
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WikiImagePage(
+    @SerialName("imageinfo") val imageInfo: List<WikiImageInfo>,
+    @SerialName("imagerepository") val imageRepository: String,
+    @SerialName("pageid") val pageId: Int,
+    val title: String,
+    val ns: Int
+)

app/src/main/java/com/bnyro/wallpaper/api/wi/obj/WikiImageQuery.kt

@@ -0,0 +1,8 @@
+package com.bnyro.wallpaper.api.wi.obj
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WikiImageQuery(
+    val pages: Map<String, WikiImagePage>
+)

app/src/main/java/com/bnyro/wallpaper/api/wi/obj/WikiImagesResponse.kt

@@ -0,0 +1,8 @@
+package com.bnyro.wallpaper.api.wi.obj
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class WikiImagesResponse(
+    val query: WikiImageQuery
+)