/**
 * Interactive Mini-Game Button
 */

class GameButton {
	constructor(buttonId) {
		this.button = document.getElementById(buttonId)
		this.runButton = document.getElementById("runBtn")
		if (!this.button) {
			console.error("GameButton: Target button not found")
			return
		}

		// --- Injection Logic ---
		this.button.classList.add("game-btn") // Add our styling class

		// Wrap existing text to animate it
		if (!this.button.querySelector(".btn-text")) {
			const textSpan = document.createElement("span")
			textSpan.className = "btn-text"
			while (this.button.firstChild) {
				textSpan.appendChild(this.button.firstChild)
			}
			this.button.appendChild(textSpan)
		}

		// Create Game Container
		if (!this.button.querySelector(".game-container")) {
			this.gameContainer = document.createElement("div")
			this.gameContainer.className = "game-container"
			this.gameContainer.id = "gameContainer"
			this.button.appendChild(this.gameContainer)
		} else {
			this.gameContainer = this.button.querySelector(".game-container")
		}

		// Create Progress Bar
		if (!this.button.querySelector(".game-button-progress-bar")) {
			const progBar = document.createElement("div")
			progBar.className = "game-button-progress-bar"
			this.progressFill = document.createElement("div")
			this.progressFill.className = "progress-fill"
			this.progressFill.id = "progressFill"
			progBar.appendChild(this.progressFill)
			this.button.appendChild(progBar)
		} else {
			this.progressFill = this.button.querySelector(".progress-fill")
		}

		// Create Completion Controls
		if (!this.button.querySelector(".completion-controls")) {
			const controls = document.createElement("div")
			controls.className = "completion-controls"

			this.compText = document.createElement("span")
			this.compText.className = "completion-text"
			this.compText.innerText = "Fertig!"
			controls.appendChild(this.compText)

			this.closeBtn = document.createElement("button")
			this.closeBtn.className = "close-game-btn"
			this.closeBtn.title = "Close Game"
			// Use innerHTML for SVG icon
			this.closeBtn.innerHTML = '<svg viewBox="0 0 24 24" width="20" height="20" stroke="currentColor" stroke-width="2" fill="none" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>'

			// Prevent close button click from triggering main button
			this.closeBtn.addEventListener("click", (e) => {
				e.stopPropagation()
				this.reset()
			})

			controls.appendChild(this.closeBtn)
			this.button.appendChild(controls)
		} else {
			this.closeBtn = this.button.querySelector(".close-game-btn")
			this.compText = this.button.querySelector(".completion-text")
			this.closeBtn.addEventListener("click", (e) => {
				e.stopPropagation()
				this.reset()
			})
		}

		if (!this.button.querySelector(".points-wrapper")) {
			const pointsWrapper = document.createElement("div")
			pointsWrapper.className = "points-wrapper"

			const pointsTextWrapper = document.createElement("span")
			pointsTextWrapper.className = "points-text-wrapper"

			const pointsText = document.createElement("span")
			pointsText.className = "points-text"
			pointsText.innerText = "p"

			this.points = document.createElement("span")
			this.points.className = "points"
			this.points.innerText = "0"

			pointsTextWrapper.appendChild(this.points)
			pointsTextWrapper.appendChild(pointsText)
			pointsWrapper.appendChild(pointsTextWrapper)
			this.button.appendChild(pointsWrapper)
		} else {
			this.points = this.button.querySelector(".points")
		}
		// -----------------------

		this.durationInput = document.getElementById("durationInput")

		this.state = "IDLE"
		this.processDuration = 5000
		this.startTime = 0
		this.rafId = null
		this.gamePoints = 0

		this.games = ["snake", "memory", "simon"]
		this.currentGame = null

		this.button.addEventListener("click", (e) => {
			if (this.button.classList.contains("active")) e.preventDefault()
			if (this.state === "IDLE") this.activate()
		})

		// Pause on blur
		this.button.addEventListener("blur", () => {
			// if (this.currentGame && (this.state === "ACTIVE" || this.state === "COMPLETE")) {
			// 	this.currentGame.pause()
			// 	this.button.classList.add("paused")
			// }
		})

		// Resume on focus
		this.button.addEventListener("focus", () => {
			if (this.currentGame && (this.state === "ACTIVE" || this.state === "COMPLETE")) {
				this.currentGame.resume()
				this.button.classList.remove("paused")
			}
		})

		this.button.addEventListener("focusout", (e) => {
			if (this.currentGame && (this.state === "ACTIVE" || this.state === "COMPLETE")) {
				if (e.currentTarget.contains(e.relatedTarget)) {
					/* Focus will still be within the container */
					this.currentGame.resume()
					this.button.classList.remove("paused")
				} else {
					/* Focus will leave the container */
					this.currentGame.pause()
					this.button.classList.add("paused")
				}
			}
		})
	}

	activate() {
		if (this.state !== "IDLE") return

		this.runButton.click()

		// Get duration from input if present
		if (this.durationInput) {
			const val = parseInt(this.durationInput.value)
			if (val && val > 0) this.processDuration = val
		}

		this.state = "ACTIVE"
		this.button.classList.add("active", "process-running")
		this.button.classList.remove("complete")

		// Start the fake process
		this.startTime = Date.now()
		this.progressFill.style.width = "0%"
		setTimeout(() => this.updateProgress(), 200)

		// Pick a random game
		setTimeout(() => {
			if (this.state === "ACTIVE") {
				this.launchRandomGame()
			}
		}, 500)
	}

	updateProgress() {
		if (this.state === "IDLE") return

		const elapsed = Date.now() - this.startTime
		const firstActiveProgressBar = document.querySelectorAll("div.progress-bar")[0]
		const progressError = document.querySelectorAll('div[data-testid="status-tracker"] span.error')[0]

		if (firstActiveProgressBar) {
			const progress = firstActiveProgressBar.style.width
			this.progressFill.style.width = `${progress}`
		}

		// if (progress >= 100 && this.state !== "COMPLETE") {
		// 	this.complete()
		// }

		if (progressError) {
			console.log("complete error")
			this.completeError()
		}

		if (this.button.classList.contains("process-running") === false && this.state !== "COMPLETE") {
			console.log("complete")
			this.progressFill.style.width = "100%"
			this.complete()
		}

		if (this.state !== "IDLE") {
			if (this.button.classList.contains("process-running")) {
				this.rafId = requestAnimationFrame(() => this.updateProgress())
			}
		}
	}

	completeError() {
		this.state = "COMPLETE"
		this.compText.innerText = "ERROR!"
		this.button.classList.add("complete", "error")
		this.button.classList.remove("process-running")
		// Game continues running! No cleanup here.
	}

	complete() {
		this.state = "COMPLETE"
		this.button.classList.add("complete")
		// Game continues running! No cleanup here.
	}

	reset() {
		this.state = "IDLE"
		this.button.classList.remove("active")
		this.button.classList.remove("complete", "error")
		this.compText.innerText = "Fertig!"
		this.progressFill.style.width = "0%"

		if (this.currentGame) {
			this.currentGame.cleanup()
			this.currentGame = null
		}
		this.gameContainer.innerHTML = ""

		// Remove paused class if present
		this.button.classList.remove("paused")
	}

	launchRandomGame() {
		// Simple random
		const gameType = this.games[Math.floor(Math.random() * this.games.length)]
		// const gameType = "snake"
		this.gameContainer.innerHTML = ""

		const w = this.button.offsetWidth
		const h = this.button.offsetHeight

		if (gameType === "snake") {
			this.currentGame = new SnakeGame(this.gameContainer, w, h)
		} else if (gameType === "memory") {
			this.currentGame = new MemoryGame(this.gameContainer)
		} else if (gameType === "simon") {
			this.currentGame = new SimonGame(this.gameContainer)
		}
	}
}

/**
 * Snake Game Implementation
 */
class SnakeGame {
	constructor(container, width, height) {
		this.canvas = document.createElement("canvas")
		this.canvas.id = "snakeCanvas"
		this.canvas.width = Math.min(width - 40, 400)
		this.canvas.height = 70

		container.appendChild(this.canvas)

		this.ctx = this.canvas.getContext("2d")
		this.gridSize = 10

		const startX = Math.floor(this.canvas.width / this.gridSize / 2)
		const startY = Math.floor(this.canvas.height / this.gridSize / 2)

		this.snake = [{ x: startX, y: startY }]
		this.dx = 1
		this.dy = 0
		this.food = this.spawnFood()
		this.score = 0
		this.gameOver = false

		this.interval = setInterval(() => this.loop(), 120)

		this.handleKey = this.handleKey.bind(this)
		document.addEventListener("keydown", this.handleKey)
		this.canvas.addEventListener("mousedown", (e) => this.handleClick(e))
	}

	spawnFood() {
		return {
			x: Math.floor(Math.random() * (this.canvas.width / this.gridSize)),
			y: Math.floor(Math.random() * (this.canvas.height / this.gridSize)),
		}
	}

	handleKey(e) {
		if (["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"].includes(e.key)) {
			e.preventDefault()
		}

		switch (e.key) {
			case "ArrowUp":
				if (this.dy === 0) {
					this.dx = 0
					this.dy = -1
				}
				break
			case "ArrowDown":
				if (this.dy === 0) {
					this.dx = 0
					this.dy = 1
				}
				break
			case "ArrowLeft":
				if (this.dx === 0) {
					this.dx = -1
					this.dy = 0
				}
				break
			case "ArrowRight":
				if (this.dx === 0) {
					this.dx = 1
					this.dy = 0
				}
				break
		}
	}

	handleClick(e) {
		e.stopPropagation()
		const rect = this.canvas.getBoundingClientRect()
		const clickX = e.clientX - rect.left
		const clickY = e.clientY - rect.top

		const headScreenX = this.snake[0].x * this.gridSize + this.gridSize / 2
		const headScreenY = this.snake[0].y * this.gridSize + this.gridSize / 2

		const diffX = clickX - headScreenX
		const diffY = clickY - headScreenY

		if (Math.abs(diffX) > Math.abs(diffY)) {
			if (diffX > 0 && this.dx === 0) {
				this.dx = 1
				this.dy = 0
			} else if (diffX < 0 && this.dx === 0) {
				this.dx = -1
				this.dy = 0
			}
		} else {
			if (diffY > 0 && this.dy === 0) {
				this.dx = 0
				this.dy = 1
			} else if (diffY < 0 && this.dy === 0) {
				this.dx = 0
				this.dy = -1
			}
		}
	}

	loop() {
		if (this.gameOver) return

		const head = { x: this.snake[0].x + this.dx, y: this.snake[0].y + this.dy }
		const cols = Math.floor(this.canvas.width / this.gridSize)
		const rows = Math.floor(this.canvas.height / this.gridSize)

		if (head.x < 0) head.x = cols - 1
		if (head.x >= cols) head.x = 0
		if (head.y < 0) head.y = rows - 1
		if (head.y >= rows) head.y = 0

		if (this.snake.some((s) => s.x === head.x && s.y === head.y)) {
			this.snake = [{ x: Math.floor(cols / 2), y: Math.floor(rows / 2) }]
			this.gameOver = true
			this.canvas.classList.add("game-over")
			this.restart(4000)
			return
		}

		this.snake.unshift(head)

		if (head.x === this.food.x && head.y === this.food.y) {
			this.score += 10
			document.querySelector(".points").innerText = this.score
			this.food = this.spawnFood()
		} else {
			this.snake.pop()
		}

		this.draw()
	}

	draw() {
		this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height)

		this.ctx.fillStyle = "#10b981"
		this.snake.forEach((s) => {
			this.ctx.fillRect(s.x * this.gridSize, s.y * this.gridSize, this.gridSize - 1, this.gridSize - 1)
		})

		this.ctx.fillStyle = "#ef4444"
		this.ctx.fillRect(this.food.x * this.gridSize, this.food.y * this.gridSize, this.gridSize - 1, this.gridSize - 1)
	}

	cleanup() {
		clearInterval(this.interval)
		this.restart()
		document.removeEventListener("keydown", this.handleKey)
	}

	pause() {
		clearInterval(this.interval)
	}

	resume() {
		clearInterval(this.interval)
		this.canvas.classList.remove("game-over")
		this.interval = setInterval(() => this.loop(), 120)
	}

	restart(time) {
		setTimeout(() => {
			this.snake = [{ x: Math.floor(this.canvas.width / this.gridSize / 2), y: Math.floor(this.canvas.height / this.gridSize / 2) }]
			this.dx = 1
			this.dy = 0
			this.food = this.spawnFood()
			this.score = 0
			document.querySelector(".points").innerText = this.score
			this.gameOver = false
		}, time || 0)
	}
}

/**
 * Memory Game Implementation
 */
class MemoryGame {
	constructor(container) {
		this.grid = document.createElement("div")
		this.grid.className = "memory-grid"
		container.appendChild(this.grid)

		const icons = ["🐌", "🦕", "♥️", "⚡", "🌱", "🤖"]
		this.cards = [...icons, ...icons]
		this.cards.sort(() => Math.random() - 0.5)

		this.flipped = []
		this.matched = []
		this.render()
	}

	render() {
		this.cards.forEach((icon, index) => {
			const { r, g, b } = getAverageColor(icon)
			const card = document.createElement("div")
			card.style.setProperty("--card-color", `rgb(${r},${g},${b})`)
			// card.style.setProperty("--card-color", `rgba(${r},${g},${b}, 0.5)`)
			// card.style.setProperty("--card-color", `color(from rgb(${r},${g},${b}) h calc(from rgb(${r},${g},${b}) h + 180)`)

			card.className = "memory-card"
			card.dataset.icon = icon

			card.addEventListener("mousedown", (e) => e.preventDefault())
			card.addEventListener("click", (e) => {
				e.stopPropagation()
				this.flip(card, index)
			})
			this.grid.appendChild(card)
		})
	}

	flip(card, index) {
		if (this.flipped.length >= 2 || this.flipped.includes(index) || this.matched.includes(index)) return

		card.innerText = this.cards[index]
		card.classList.add("flipped")
		this.flipped.push(index)

		if (this.flipped.length === 2) {
			this.checkMatch()
		}
	}

	checkMatch() {
		const [idx1, idx2] = this.flipped
		const card1 = this.grid.children[idx1]
		const card2 = this.grid.children[idx2]

		if (this.cards[idx1] === this.cards[idx2]) {
			this.matched.push(idx1, idx2)
			card1.classList.add("matched")
			card2.classList.add("matched")
			this.flipped = []

			if (this.matched.length === this.cards.length) {
				setTimeout(() => {
					this.matched = []
					this.flipped = []
					this.cards.sort(() => Math.random() - 0.5)
					this.grid.innerHTML = ""
					this.render()
				}, 2000)
			}
		} else {
			setTimeout(() => {
				card1.classList.remove("flipped")
				card1.innerText = ""
				card2.classList.remove("flipped")
				card2.innerText = ""
				this.flipped = []
			}, 800)
		}
	}

	cleanup() {}
	pause() {}
	resume() {}
}

/**
 * Simon Game Implementation
 */
class SimonGame {
	constructor(container) {
		this.board = document.createElement("div")
		this.board.className = "simon-board"
		container.appendChild(this.board)

		const colors = ["simon-green", "simon-red", "simon-yellow", "simon-blue"]
		this.sequence = []
		this.playerSequence = []
		this.buttons = []
		this.score = 0

		colors.forEach((color, i) => {
			const btn = document.createElement("div")
			btn.className = `simon-btn ${color}`
			btn.dataset.id = i
			btn.addEventListener("mousedown", (e) => e.preventDefault())
			btn.addEventListener("click", (e) => {
				e.stopPropagation()
				this.handleInput(i)
			})
			this.board.appendChild(btn)
			this.buttons.push(btn)
		})

		this.isActive = false
		this.timer = setTimeout(() => this.nextRound(), 600)
	}

	nextRound() {
		this.sequence.push(Math.floor(Math.random() * 4))
		this.playerSequence = []
		this.playSequence()
	}

	playSequence() {
		this.isActive = false
		let i = 0

		this.interval = setInterval(() => {
			this.flash(this.sequence[i])
			i++
			if (i >= this.sequence.length) {
				clearInterval(this.interval)
				this.isActive = true
			}
		}, 800)
	}

	flash(btnIndex) {
		if (!this.buttons[btnIndex]) return
		const btn = this.buttons[btnIndex]
		btn.classList.add("lit")
		setTimeout(() => btn.classList.remove("lit"), 300)
	}

	handleInput(index) {
		if (!this.isActive) return

		this.flash(index)
		this.playerSequence.push(index)

		const currentStep = this.playerSequence.length - 1
		if (this.playerSequence[currentStep] !== this.sequence[currentStep]) {
			// Fail
			this.sequence = []
			this.isActive = false
			this.board.classList.add("game-over")

			setTimeout(() => {
				this.score = 0
				document.querySelector(".points").innerText = this.score
				this.board.classList.remove("game-over")
				this.nextRound()
			}, 4000)
			return
		}

		if (this.playerSequence.length === this.sequence.length) {
			this.isActive = false
			this.score += 10
			document.querySelector(".points").innerText = this.score
			setTimeout(() => this.nextRound(), 1000)
		}
	}

	cleanup() {
		clearTimeout(this.timer)
		this.score = 0
		document.querySelector(".points").innerText = this.score
		this.board.classList.remove("game-over")
		if (this.interval) clearInterval(this.interval)
	}

	pause() {
		this.paused = true
		clearTimeout(this.timer)
		if (this.interval) clearInterval(this.interval)
		this.buttons.forEach((b) => b.classList.remove("lit"))
	}

	resume() {
		if (!this.paused) return
		this.paused = false
		this.playSequence()
	}
}

// Initialize
const initInterval = setInterval(() => {
	if (document.querySelector("#gameBtn")) {
		console.log("Game Button found!")
		const btn = new GameButton("gameBtn")
		clearInterval(initInterval)
	}
}, 250)

const getAverageColor = (emoji) => {
	const canvas = document.createElement("canvas")
	const ctx = canvas.getContext("2d")
	const size = 30

	canvas.width = size
	canvas.height = size

	ctx.textBaseline = "middle"
	ctx.textAlign = "center"
	ctx.font = `${size - 4}px sans-serif`
	ctx.fillText(emoji, size / 2, size / 2)

	const data = ctx.getImageData(0, 0, size, size).data
	let r = 0,
		g = 0,
		b = 0,
		count = 0

	for (let i = 0; i < data.length; i += 4) {
		const alpha = data[i + 3]
		if (alpha > 50) {
			r += data[i]
			g += data[i + 1]
			b += data[i + 2]
			count++
		}
	}

	if (count > 0) {
		r = Math.floor(r / count)
		g = Math.floor(g / count)
		b = Math.floor(b / count)
	} else {
		r = 255
		g = 255
		b = 255
	}

	return { r, g, b }
}