/* Operator Logic */

let state = {
    show_name: "",
    num_lights: 8,
    cues: [],
    current_cue_index: -1,
};

let myLightId = window.INITIAL_LIGHT_ID;
let ws = null;
let reconnectTimer = null;

function connectWS() {
    const protocol = window.location.protocol === "https:" ? "wss:" : "ws:";
    ws = new WebSocket(`${protocol}//${window.location.host}/ws`);

    ws.onopen = () => {
        setStatus(true);
        if (reconnectTimer) { clearTimeout(reconnectTimer); reconnectTimer = null; }
    };
    ws.onclose = () => { setStatus(false); reconnectTimer = setTimeout(connectWS, 2000); };
    ws.onerror = () => { setStatus(false); };
    ws.onmessage = (e) => {
        const msg = JSON.parse(e.data);
        if (msg.type === "state_update") {
            const prevIndex = state.current_cue_index;
            state = msg.data;
            render();
            if (state.current_cue_index !== prevIndex && hasMyAction(state.current_cue_index)) {
                triggerAlert();
            }
        }
    };
}

function setStatus(connected) {
    const dot = document.getElementById("status-dot");
    if (!dot) return;
    dot.className = connected ? "status-dot connected" : "status-dot disconnected";
}

function hasMyAction(cueIdx) {
    if (cueIdx < 0 || cueIdx >= state.cues.length) return false;
    const cue = state.cues[cueIdx];
    if (!cue.actions) return false;
    const action = cue.actions[myLightId - 1];
    return action && action.enabled;
}

function getMyAction(cueIdx) {
    if (cueIdx < 0 || cueIdx >= state.cues.length) return null;
    const cue = state.cues[cueIdx];
    if (!cue.actions) return null;
    return cue.actions[myLightId - 1];
}

function findMyLastActionBefore(cueIdx) {
    for (let i = cueIdx - 1; i >= 0; i--) {
        if (hasMyAction(i)) return { cue: state.cues[i], index: i };
    }
    return null;
}

function render() {
    if (myLightId === null || myLightId === undefined) {
        renderPicker();
        return;
    }

    document.getElementById("light-picker").hidden = true;
    document.getElementById("operator-view").hidden = false;

    if (myLightId < 1 || myLightId > state.num_lights) {
        renderPicker();
        return;
    }

    document.getElementById("my-light-id").textContent = myLightId;
    document.getElementById("footer-show").textContent = state.show_name || "—";

    const curr = state.current_cue_index;
    const total = state.cues.length;

    if (curr < 0) {
        document.getElementById("footer-cue").textContent = total > 0 ? `— / ${total}` : "—";
    } else {
        document.getElementById("footer-cue").textContent = `${curr + 1} / ${total}`;
    }

    const standby = document.getElementById("state-standby");
    const action = document.getElementById("state-action");
    const idle = document.getElementById("state-idle");

    standby.hidden = true;
    action.hidden = true;
    idle.hidden = true;

    if (total === 0) {
        idle.hidden = false;
        document.getElementById("idle-label").textContent = "No cues programmed";
        return;
    }

    if (curr < 0) {
        idle.hidden = false;
        document.getElementById("idle-label").textContent = "Show not started";
        return;
    }

    if (hasMyAction(curr)) {
        action.hidden = false;
        renderAction();
    } else {
        standby.hidden = false;
        renderStandby();
    }
}

function renderStandby() {
    const lastAction = findMyLastActionBefore(state.current_cue_index);
    const lastEl = document.getElementById("last-action");
    if (lastAction) {
        const a = lastAction.cue.actions[myLightId - 1];
        lastEl.hidden = false;
        document.getElementById("last-action-detail").textContent =
            `Cue ${lastAction.index + 1}: ${formatActionSummary(a)}`;
    } else {
        lastEl.hidden = true;
    }
}

function renderAction() {
    const curr = state.current_cue_index;
    const cue = state.cues[curr];
    const a = cue.actions[myLightId - 1];

    document.getElementById("action-cue-num").textContent =
        `CUE ${curr + 1} — ${cue.name || "Untitled"}`;

    const modeCard = document.getElementById("mode-card");
    const modeText = {
        "snap": "⚡ Snap (instant)",
        "fade": "🌫 Fade",
        "off": "⚫ Off",
    }[a.mode || "snap"] || "Snap";
    modeCard.hidden = false;
    document.getElementById("detail-mode").textContent = modeText;

    const colorCard = document.getElementById("color-card");
    if (a.mode === "off") {
        colorCard.hidden = true;
    } else {
        colorCard.hidden = false;
        const colorName = a.color_name || colorHexToName(a.color) || "Custom";
        document.getElementById("detail-color").textContent = colorName;
        const swatch = document.getElementById("color-swatch");
        swatch.style.backgroundColor = a.color || "#ffffff";
        swatch.style.color = a.color || "#ffffff";
    }

    const brightnessCard = document.getElementById("brightness-card");
    if (a.mode === "off") {
        brightnessCard.hidden = true;
    } else {
        brightnessCard.hidden = false;
        const b = a.brightness ?? 100;
        document.getElementById("detail-brightness").textContent = `${b}%`;
        document.getElementById("brightness-fill").style.width = b + "%";
    }

    const fadeCard = document.getElementById("fade-card");
    if (a.mode === "fade" && (a.fade_seconds || 0) > 0) {
        fadeCard.hidden = false;
        document.getElementById("detail-fade").textContent = `${a.fade_seconds}s`;
    } else {
        fadeCard.hidden = true;
    }

    const notesCard = document.getElementById("notes-card");
    if (a.notes && a.notes.trim()) {
        notesCard.hidden = false;
        document.getElementById("detail-notes").textContent = a.notes;
    } else {
        notesCard.hidden = true;
    }
}

function formatActionSummary(a) {
    if (!a) return "—";
    if (a.mode === "off") return "Off";
    const parts = [];
    if (a.color_name) parts.push(a.color_name);
    if (a.brightness != null) parts.push(`${a.brightness}%`);
    if (a.mode === "fade" && a.fade_seconds > 0) parts.push(`fade ${a.fade_seconds}s`);
    return parts.join(" · ") || "Active";
}

function colorHexToName(hex) {
    if (!hex) return null;
    const h = hex.toLowerCase();
    const map = {
        "#ffffff": "White", "#000000": "Black",
        "#ff0000": "Red", "#00ff00": "Green", "#0000ff": "Blue",
        "#ffff00": "Yellow", "#ff00ff": "Magenta", "#00ffff": "Cyan",
        "#ffa500": "Orange", "#ffc0cb": "Pink", "#800080": "Purple",
    };
    return map[h] || null;
}

function triggerAlert() {
    if (navigator.vibrate) navigator.vibrate([200, 100, 200]);
    playBeep();
}

function playBeep() {
    try {
        const ctx = new (window.AudioContext || window.webkitAudioContext)();
        const osc = ctx.createOscillator();
        const gain = ctx.createGain();
        osc.connect(gain);
        gain.connect(ctx.destination);
        osc.frequency.value = 880;
        osc.type = "sine";
        gain.gain.setValueAtTime(0.0001, ctx.currentTime);
        gain.gain.exponentialRampToValueAtTime(0.3, ctx.currentTime + 0.02);
        gain.gain.exponentialRampToValueAtTime(0.0001, ctx.currentTime + 0.35);
        osc.start();
        osc.stop(ctx.currentTime + 0.4);
    } catch (e) {}
}

function renderPicker() {
    document.getElementById("light-picker").hidden = false;
    document.getElementById("operator-view").hidden = true;
    const btns = document.getElementById("light-buttons");
    btns.innerHTML = "";
    const n = state.num_lights || 8;
    for (let i = 1; i <= n; i++) {
        const a = document.createElement("a");
        a.className = "light-btn";
        a.href = `/operator/${i}`;
        a.textContent = i;
        btns.appendChild(a);
    }
}

document.addEventListener("DOMContentLoaded", () => {
    const doneBtn = document.getElementById("btn-done");
    if (doneBtn) {
        doneBtn.addEventListener("click", () => {
            const action = document.getElementById("state-action");
            const standby = document.getElementById("state-standby");
            action.hidden = true;
            standby.hidden = false;
            renderStandby();
        });
    }

    document.body.addEventListener("touchstart", primeAudio, { once: true });
    document.body.addEventListener("click", primeAudio, { once: true });

    connectWS();
});

function primeAudio() {
    try {
        const ctx = new (window.AudioContext || window.webkitAudioContext)();
        const osc = ctx.createOscillator();
        const gain = ctx.createGain();
        osc.connect(gain);
        gain.connect(ctx.destination);
        gain.gain.value = 0;
        osc.start();
        osc.stop(ctx.currentTime + 0.01);
    } catch (e) {}
}