package moe.nea.firmament.util.customgui

import me.shedaniel.math.Rectangle
import net.minecraft.client.gui.DrawContext
import net.minecraft.screen.slot.Slot
import moe.nea.firmament.annotations.Subscribe
import moe.nea.firmament.events.HandledScreenPushREIEvent

abstract class CustomGui {

    abstract fun getBounds(): List<Rectangle>

    open fun moveSlot(slot: Slot) {
        // TODO: return a Pair maybe? worth an investigation
    }

    companion object {
        @Subscribe
        fun onExclusionZone(event: HandledScreenPushREIEvent) {
            val customGui = event.screen.customGui ?: return
            event.rectangles.addAll(customGui.getBounds())
        }
    }

    open fun render(
        drawContext: DrawContext,
        delta: Float,
        mouseX: Int,
        mouseY: Int
    ) {
    }

    open fun mouseClick(mouseX: Double, mouseY: Double, button: Int): Boolean {
        return false
    }

    open fun afterSlotRender(context: DrawContext, slot: Slot) {}
    open fun beforeSlotRender(context: DrawContext, slot: Slot) {}
    open fun mouseScrolled(mouseX: Double, mouseY: Double, horizontalAmount: Double, verticalAmount: Double): Boolean {
        return false
    }

    open fun isClickOutsideBounds(mouseX: Double, mouseY: Double): Boolean {
        return getBounds().none { it.contains(mouseX, mouseY) }
    }

    open fun isPointWithinBounds(
        x: Int,
        y: Int,
        width: Int,
        height: Int,
        pointX: Double,
        pointY: Double,
    ): Boolean {
        return getBounds().any { it.contains(pointX, pointY) } &&
            Rectangle(x, y, width, height).contains(pointX, pointY)
    }

    open fun isPointOverSlot(slot: Slot, xOffset: Int, yOffset: Int, pointX: Double, pointY: Double): Boolean {
        return isPointWithinBounds(slot.x + xOffset, slot.y + yOffset, 16, 16, pointX, pointY)
    }

    open fun onInit() {}
    open fun shouldDrawForeground(): Boolean {
        return true
    }

    open fun onVoluntaryExit(): Boolean {
        return true
    }
}