package components

import (
	"fmt"
	"math"
	"time"

	"github.com/ryanhamamura/c4/config"
	"github.com/ryanhamamura/c4/snake"
	"github.com/starfederation/datastar-go/datastar"
)

templ StatusBanner(sg *snake.SnakeGame, mySlot int, gameID string) {
	<div id="snake-status">
		switch sg.Status {
			case snake.StatusWaitingForPlayers:
				if sg.Mode == snake.ModeSinglePlayer {
					<div class="alert bg-base-200 text-xl font-bold">Ready?</div>
				} else {
					<div class="alert bg-base-200 text-xl font-bold">Waiting for players...</div>
				}
			case snake.StatusCountdown:
				{{ remaining := time.Until(sg.CountdownEnd) }}
				{{ secs := int(math.Ceil(remaining.Seconds())) }}
				if secs < 0 {
					{{ secs = 0 }}
				}
				<div class="alert alert-info text-xl font-bold">
					{ fmt.Sprintf("Starting in %d...", secs) }
				</div>
			case snake.StatusInProgress:
				if sg.State != nil && mySlot >= 0 && mySlot < len(sg.State.Snakes) && sg.State.Snakes[mySlot] != nil && !sg.State.Snakes[mySlot].Alive {
					<div class="alert alert-error text-xl font-bold">You're out!</div>
				} else if sg.Mode == snake.ModeSinglePlayer {
					<div class="alert alert-success text-xl font-bold">
						{ fmt.Sprintf("Score: %d", sg.Score) }
					</div>
				} else {
					<div class="alert alert-success text-xl font-bold">Go!</div>
				}
			case snake.StatusFinished:
				@finishedBanner(sg, mySlot, gameID)
		}
	</div>
}

templ finishedBanner(sg *snake.SnakeGame, mySlot int, gameID string) {
	if sg.Mode == snake.ModeSinglePlayer {
		<div class="alert alert-info text-xl font-bold">
			{ fmt.Sprintf("Game Over! Score: %d", sg.Score) }
			@rematchOrJoin(sg, gameID)
		</div>
	} else if sg.Winner != nil {
		if sg.Winner.Slot == mySlot {
			<div class="alert alert-success text-xl font-bold">
				You win!
				@rematchOrJoin(sg, gameID)
			</div>
		} else {
			<div class="alert alert-error text-xl font-bold">
				{ sg.Winner.Nickname + " wins!" }
				@rematchOrJoin(sg, gameID)
			</div>
		}
	} else {
		<div class="alert alert-warning text-xl font-bold">
			It's a draw!
			@rematchOrJoin(sg, gameID)
		</div>
	}
}

templ rematchOrJoin(sg *snake.SnakeGame, gameID string) {
	if sg.RematchGameID != nil {
		<a class="btn btn-sm bg-white text-gray-800 border-none ml-4" href={ templ.SafeURL("/snake/" + *sg.RematchGameID) }>
			Join Rematch
		</a>
	} else {
		<button
			class="btn btn-sm bg-white text-gray-800 border-none ml-4"
			type="button"
			data-on:click={ datastar.PostSSE("/snake/%s/rematch", gameID) }
		>
			Play again
		</button>
	}
}

templ PlayerList(sg *snake.SnakeGame, mySlot int) {
	<div id="snake-players" class="flex flex-wrap gap-4 mb-2">
		for i, p := range sg.Players {
			if p != nil {
				<div class="flex items-center gap-2">
					<span style={ fmt.Sprintf("width:16px;height:16px;border-radius:50%%;background:%s;display:inline-block;", snakeColor(i)) }></span>
					<span>
						{ p.Nickname }
						if i == mySlot {
							{ " (You)" }
						}
					</span>
					if sg.Status == snake.StatusInProgress || sg.Status == snake.StatusFinished {
						if sg.State != nil && i < len(sg.State.Snakes) && sg.State.Snakes[i] != nil {
							if sg.State.Snakes[i].Alive {
								<span class="text-sm opacity-60">
									{ fmt.Sprintf("(%d)", len(sg.State.Snakes[i].Body)) }
								</span>
							} else {
								<span class="text-sm opacity-40">(dead)</span>
							}
						}
					}
				</div>
			}
		}
	</div>
}

templ InviteLink(gameID string) {
	{{ fullURL := config.Global.AppURL + "/snake/" + gameID }}
	<div id="snake-invite" class="mt-4 text-center">
		<p>Share this link to invite players:</p>
		<div class="bg-base-200 p-4 rounded-lg font-mono break-all my-2">
			{ fullURL }
		</div>
		<button
			class="btn btn-sm mt-2"
			type="button"
			onclick={ copyToClipboard(fullURL) }
		>
			Copy Link
		</button>
	</div>
}

script copyToClipboard(url string) {
	navigator.clipboard.writeText(url)
}