complete panel

posts/panel/src/commonMain/kotlin/PanelButtonsAPI.kt

@@ -0,0 +1,29 @@
+package dev.inmo.plaguposter.posts.panel
+
+import dev.inmo.tgbotapi.types.buttons.InlineKeyboardButtons.CallbackDataInlineKeyboardButton
+
+class PanelButtonsAPI(
+    private val preset: List<PanelButtonBuilder>,
+    private val rootPanelButtonText: String
+) {
+    private val _buttons = mutableSetOf<PanelButtonBuilder>().also {
+        it.addAll(preset)
+    }
+    internal val buttonsBuilders: List<PanelButtonBuilder>
+        get() = _buttons.toList()
+
+    val RootPanelButtonBuilder = PanelButtonBuilder {
+        CallbackDataInlineKeyboardButton(
+            rootPanelButtonText,
+            "$openGlobalMenuDataPrefix${it.id.string}"
+        )
+    }
+
+    fun add(button: PanelButtonBuilder) = _buttons.add(button)
+    fun remove(button: PanelButtonBuilder) = _buttons.remove(button)
+
+    companion object {
+        internal const val openGlobalMenuData = "force_refresh_panel"
+        internal const val openGlobalMenuDataPrefix = "$openGlobalMenuData "
+    }
+}