---
import Layout from "@layouts/layout.astro";
import Nav from "@components/Nav.astro";
import { init, getUser } from "@utils/db";
import { getUserFromRequest } from "@utils/auth";

await init();

const currentUserName = getUserFromRequest(Astro.request);
if (!currentUserName) {
    return Astro.redirect("/login?redirect=/play");
}

const currentUser = await getUser(currentUserName);
---

<Layout
    title="Play"
    currentUser={currentUserName}
    currentRating={currentUser?.rating ?? null}
>
    <Nav
        currentUser={currentUserName}
        currentRating={currentUser?.rating ?? null}
        activePage="play"
    />

    <main class="container play-page">
        <h1 class="page-title" style="margin: 32px 0 24px">Start a Game</h1>

        <!-- Mode selector -->
        <div class="mode-tabs">
            <button
                class="mode-tab active"
                id="tab-inperson"
                data-mode="inperson"
            >
                <span class="mode-icon">🏓</span>
                <span class="mode-label">In Person</span>
                <span class="mode-desc">Track score for a physical game</span>
            </button>
            <button class="mode-tab" id="tab-virtual" data-mode="virtual">
                <span class="mode-icon">🌐</span>
                <span class="mode-label">Virtual</span>
                <span class="mode-desc">Play online with PeerJS</span>
            </button>
        </div>

        <div class="play-grid">
            <!-- Create Game -->
            <div class="card">
                <h2 class="card-title">Create Game</h2>
                <p class="card-desc" id="create-desc">
                    Generate a link and share it with your opponent.
                </p>

                <button
                    id="create-btn"
                    class="btn"
                    style="width:100%; padding:12px; margin-top:8px"
                >
                    Create Game Room
                </button>

                <div id="created-result" style="display:none; margin-top:24px">
                    <div class="created-link-box">
                        <p class="section-label">Game Link</p>
                        <div class="link-row">
                            <input type="text" id="game-link" readonly />
                            <button
                                id="copy-btn"
                                class="btn btn-secondary"
                                style="flex-shrink:0; width:auto; padding:10px 14px"
                                >Copy</button
                            >
                        </div>
                    </div>

                    <div class="qr-section">
                        <p class="section-label">QR Code</p>
                        <div id="qr-container" class="qr-box">
                            <img id="qr-img" src="" alt="QR code" />
                        </div>
                    </div>

                    <a
                        id="open-game-btn"
                        href="#"
                        class="btn"
                        style="width:100%; padding:12px; display:block; text-align:center; margin-top:16px"
                    >
                        Open Game Room →
                    </a>
                </div>
            </div>

            <!-- Join Game -->
            <div class="card">
                <h2 class="card-title">Join Game</h2>
                <p class="card-desc">
                    Have a game ID or link? Enter it below to join.
                </p>

                <form id="join-form" style="margin-top:8px">
                    <div class="form-group">
                        <label for="join-input">Game ID or Link</label>
                        <input
                            type="text"
                            id="join-input"
                            placeholder="e.g. abc123 or full URL"
                            autocomplete="off"
                        />
                    </div>
                    <div id="join-error" class="error-msg" style="display:none">
                    </div>
                    <button
                        type="submit"
                        class="btn"
                        style="width:100%; padding:12px"
                    >
                        Join Game →
                    </button>
                </form>
            </div>
        </div>
    </main>
</Layout>

<script>
    let selectedMode = "inperson";

    const tabs = document.querySelectorAll(".mode-tab");
    tabs.forEach((tab) => {
        tab.addEventListener("click", () => {
            tabs.forEach((t) => t.classList.remove("active"));
            tab.classList.add("active");
            selectedMode = (tab as HTMLElement).dataset.mode!;
            // Hide any previous result when switching modes
            const result = document.getElementById(
                "created-result",
            ) as HTMLElement;
            result.style.display = "none";
        });
    });

    const createBtn = document.getElementById(
        "create-btn",
    ) as HTMLButtonElement;
    const createdResult = document.getElementById(
        "created-result",
    ) as HTMLElement;
    const gameLink = document.getElementById("game-link") as HTMLInputElement;
    const copyBtn = document.getElementById("copy-btn") as HTMLButtonElement;
    const qrImg = document.getElementById("qr-img") as HTMLImageElement;
    const openGameBtn = document.getElementById(
        "open-game-btn",
    ) as HTMLAnchorElement;

    createBtn.addEventListener("click", async () => {
        createBtn.disabled = true;
        createBtn.textContent = "Creating...";

        const res = await fetch("/api/game", {
            method: "POST",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify({ mode: selectedMode }),
        });

        if (!res.ok) {
            createBtn.disabled = false;
            createBtn.textContent = "Create Game Room";
            alert("Failed to create game. Are you signed in?");
            return;
        }

        const data = await res.json();
        const url = `${location.origin}/game/${data.id}`;

        gameLink.value = url;
        openGameBtn.href = `/game/${data.id}`;
        qrImg.src = `/api/qr/${data.id}`;
        createdResult.style.display = "block";
        createBtn.textContent = "Create Another";
        createBtn.disabled = false;
    });

    copyBtn.addEventListener("click", () => {
        navigator.clipboard.writeText(gameLink.value);
        copyBtn.textContent = "Copied!";
        setTimeout(() => {
            copyBtn.textContent = "Copy";
        }, 2000);
    });

    const joinForm = document.getElementById("join-form") as HTMLFormElement;
    const joinInput = document.getElementById("join-input") as HTMLInputElement;
    const joinError = document.getElementById("join-error") as HTMLElement;

    joinForm.addEventListener("submit", (e) => {
        e.preventDefault();
        joinError.style.display = "none";
        let val = joinInput.value.trim();
        if (!val) return;
        let id = val;
        try {
            const url = new URL(val);
            const parts = url.pathname.split("/").filter(Boolean);
            if (parts.length >= 2 && parts[0] === "game") id = parts[1];
        } catch {}
        if (!id) {
            joinError.textContent = "Invalid game ID";
            joinError.style.display = "block";
            return;
        }
        location.href = `/game/${id}`;
    });
</script>

<style>
    .play-page {
        padding-bottom: 48px;
    }

    .mode-tabs {
        display: flex;
        gap: 12px;
        margin-bottom: 24px;
    }

    .mode-tab {
        flex: 1;
        background: var(--card);
        border: 2px solid var(--border);
        border-radius: 4px;
        padding: 16px;
        cursor: pointer;
        text-align: left;
        display: flex;
        flex-direction: column;
        gap: 4px;
        transition:
            border-color 0.15s,
            background 0.15s;
        font-family: "DM Mono", monospace;
    }

    .mode-tab:hover {
        border-color: var(--border-light);
    }

    .mode-tab.active {
        border-color: var(--green);
        background: rgba(129, 182, 76, 0.06);
    }

    .mode-icon {
        font-size: 20px;
    }

    .mode-label {
        font-family: "Bebas Neue", sans-serif;
        font-size: 1.3rem;
        letter-spacing: 0.05em;
        color: var(--text);
    }

    .mode-desc {
        font-size: 11px;
        color: var(--text-muted);
    }

    .play-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .card-title {
        font-family: "Bebas Neue", sans-serif;
        font-size: 1.5rem;
        letter-spacing: 0.05em;
        margin-bottom: 8px;
    }
    .card-desc {
        color: var(--text-muted);
        font-size: 13px;
        margin-bottom: 0;
        line-height: 1.6;
    }
    .created-link-box {
        margin-bottom: 20px;
    }
    .link-row {
        display: flex;
        gap: 8px;
    }
    .link-row input {
        flex: 1;
        font-size: 12px;
    }
    .qr-section {
        margin-bottom: 8px;
    }
    .qr-box {
        background: white;
        border-radius: 4px;
        display: inline-block;
        padding: 12px;
    }
    .qr-box img {
        display: block;
        width: 160px;
        height: 160px;
    }
    .error-msg {
        color: var(--red);
        font-size: 12px;
        margin-bottom: 12px;
        padding: 8px 12px;
        background: rgba(224, 110, 110, 0.1);
        border-radius: 3px;
        border: 1px solid rgba(224, 110, 110, 0.2);
    }
    @media (max-width: 640px) {
        .play-grid {
            grid-template-columns: 1fr;
        }
        .mode-tabs {
            flex-direction: column;
        }
    }
</style>