package game

import "core:fmt"
import rl "vendor:raylib"

render_overlay :: proc(world: ^World) {
	rl.DrawRectangle(0, 0, SCREEN_W, OVERLAY_BAR_H, OVERLAY_BAR_COLOR)

	font_size: i32 = 18
	y: i32 = (OVERLAY_BAR_H - font_size) / 2
	x: i32 = OVERLAY_PADDING
	gap: i32 : 16


	gold := fmt.ctprintf("Gold: %d", world.gold)
	rl.DrawText(gold, OVERLAY_PADDING, OVERLAY_PADDING, 18, OVERLAY_GOLD_COLOR)
	x += rl.MeasureText(gold, font_size) + gap

	hp := fmt.ctprintf("Health: %d", world.base_health)
	rl.DrawText(hp, x, y, font_size, OVERLAY_TEXT_COLOR)

	if world.phase == .Build {
		btn := start_wave_button_rect()
		mouse := rl.GetMousePosition()
		hovered := rl.CheckCollisionPointRec(mouse, btn)
		bg := hovered ? OVERLAY_BUTTON_HOVER : OVERLAY_BUTTON_COLOR
		rl.DrawRectangleRec(btn, bg)
		rl.DrawText("Start Wave", i32(btn.x) + 8, i32(btn.y) + 3, 16, OVERLAY_TEXT_COLOR)
	}
}

start_wave_button_rect :: proc() -> rl.Rectangle {
	return {x = f32(SCREEN_W - 120), y = 3, width = 110, height = 22}
}

overlay_ui_command :: proc(world: ^World) -> Command {
	if world.phase != .Build do return Command{kind = .None}

	mouse := rl.GetMousePosition()
	btn := start_wave_button_rect()

	if rl.CheckCollisionPointRec(mouse, btn) && rl.IsMouseButtonPressed(.LEFT) {
		return Command{kind = .Start_Wave}
	}

	return Command{kind = .None}
}