complete timer plugin

triggers/timer/src/commonMain/kotlin/TimerPanelButton.kt

@@ -0,0 +1,28 @@
+package dev.inmo.plaguposter.triggers.timer
+
+import dev.inmo.plaguposter.common.SuccessfulSymbol
+import dev.inmo.plaguposter.common.UnsuccessfulSymbol
+import dev.inmo.plaguposter.posts.models.RegisteredPost
+import dev.inmo.plaguposter.posts.panel.PanelButtonBuilder
+import dev.inmo.tgbotapi.types.buttons.InlineKeyboardButtons.CallbackDataInlineKeyboardButton
+import dev.inmo.tgbotapi.types.buttons.InlineKeyboardButtons.InlineKeyboardButton
+
+class TimerPanelButton(
+    private val timersRepo: TimersRepo
+) : PanelButtonBuilder {
+    override val weight: Int
+        get() = 0
+
+    override suspend fun buildButton(post: RegisteredPost): InlineKeyboardButton? {
+        val publishingTime = timersRepo.get(post.id)
+
+        return CallbackDataInlineKeyboardButton(
+            "⏰ ${ if (publishingTime == null) UnsuccessfulSymbol else SuccessfulSymbol }",
+            "$timerSetPrefix ${post.id}"
+        )
+    }
+
+    companion object {
+        const val timerSetPrefix = "timer_set_init"
+    }
+}