import QtQuick
import Quickshell
import qs.Common
import qs.Services

Item {
    id: service

    property var daemon: null

    readonly property var pluginData: (daemon && daemon.pluginData) ? daemon.pluginData : ({})
    readonly property string alarmSound: String(pluginData.timerSound || "/usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga").trim()
    readonly property bool notifyOnFinish: pluginData.timerNotify !== false
    readonly property bool soundOnFinish: pluginData.timerPlaySound !== false

    // ── Countdown ────────────────────────────────────────────────────────────
    property int durationMs: 5 * 60 * 1000
    property int remainingMs: durationMs
    property double deadline: 0
    property bool timerRunning: false
    property bool timerFinished: false
    property string timerLabel: ""

    readonly property real timerProgress: durationMs > 0 ? Math.max(0, Math.min(1, 1 - remainingMs / durationMs)) : 0

    // ── Stopwatch ────────────────────────────────────────────────────────────
    property double stopwatchStartedAt: 0
    property int stopwatchBaseMs: 0
    property int stopwatchElapsedMs: 0
    property bool stopwatchRunning: false
    property var laps: []

    signal finished(string label)

    function formatDuration(ms) {
        const total = Math.max(0, Math.round(ms / 1000));
        const hours = Math.floor(total / 3600);
        const mins = Math.floor((total % 3600) / 60);
        const secs = total % 60;
        const pad = value => (value < 10 ? "0" : "") + value;
        return hours > 0 ? hours + ":" + pad(mins) + ":" + pad(secs) : pad(mins) + ":" + pad(secs);
    }

    function formatStopwatch(ms) {
        const hundredths = Math.floor((Math.max(0, ms) % 1000) / 10);
        return service.formatDuration(ms) + "." + (hundredths < 10 ? "0" : "") + hundredths;
    }

    function setDuration(ms) {
        service.durationMs = Math.max(1000, Math.round(ms));
        if (!service.timerRunning) {
            service.remainingMs = service.durationMs;
            service.timerFinished = false;
        }
    }

    function addTime(ms) {
        if (service.timerRunning) {
            service.deadline += ms;
            service.durationMs = Math.max(1000, service.durationMs + ms);
            service._tick();
            return;
        }

        service.setDuration(service.durationMs + ms);
    }

    function startTimer(ms, label) {
        if (ms !== undefined && ms !== null)
            service.setDuration(ms);

        if (label !== undefined && label !== null)
            service.timerLabel = String(label);

        if (service.remainingMs <= 0)
            service.remainingMs = service.durationMs;

        service.timerFinished = false;
        service.deadline = Date.now() + service.remainingMs;
        service.timerRunning = true;
    }

    function pauseTimer() {
        if (!service.timerRunning)
            return;

        service.remainingMs = Math.max(0, service.deadline - Date.now());
        service.timerRunning = false;
    }

    function toggleTimer() {
        if (service.timerRunning)
            service.pauseTimer();
        else
            service.startTimer();
    }

    function resetTimer() {
        service.timerRunning = false;
        service.timerFinished = false;
        service.remainingMs = service.durationMs;
    }

    function _tick() {
        if (!service.timerRunning)
            return;

        const left = service.deadline - Date.now();
        if (left <= 0) {
            service.remainingMs = 0;
            service.timerRunning = false;
            service.timerFinished = true;
            service._announce();
            return;
        }

        service.remainingMs = left;
    }

    // Fires whether or not the overlay is open - the service lives in the daemon.
    function _announce() {
        const label = service.timerLabel.trim();
        const body = label !== "" ? label : "Timer finished after " + service.formatDuration(service.durationMs);

        if (service.soundOnFinish && service.alarmSound !== "")
            Quickshell.execDetached(["sh", "-c", '[ -r "$1" ] && exec paplay "$1"', "gameBar", service.alarmSound]);

        if (service.notifyOnFinish)
            Quickshell.execDetached(["notify-send", "-a", "Game Bar", "-u", "critical", "-i", "timer", "Timer finished", body]);

        if (typeof ToastService !== "undefined" && ToastService)
            ToastService.showInfo("Timer finished", body);

        service.finished(label);
    }

    function dismissFinished() {
        service.timerFinished = false;
        service.remainingMs = service.durationMs;
    }

    // ── Stopwatch control ────────────────────────────────────────────────────
    function startStopwatch() {
        if (service.stopwatchRunning)
            return;

        service.stopwatchStartedAt = Date.now();
        service.stopwatchRunning = true;
    }

    function pauseStopwatch() {
        if (!service.stopwatchRunning)
            return;

        service.stopwatchBaseMs = service.stopwatchElapsedMs;
        service.stopwatchRunning = false;
    }

    function toggleStopwatch() {
        if (service.stopwatchRunning)
            service.pauseStopwatch();
        else
            service.startStopwatch();
    }

    function resetStopwatch() {
        service.stopwatchRunning = false;
        service.stopwatchBaseMs = 0;
        service.stopwatchElapsedMs = 0;
        service.laps = [];
    }

    function lap() {
        if (!service.stopwatchRunning && service.stopwatchElapsedMs === 0)
            return;

        const previous = service.laps.length > 0 ? service.laps[0].total : 0;
        service.laps = [
            {
                "index": service.laps.length + 1,
                "total": service.stopwatchElapsedMs,
                "split": service.stopwatchElapsedMs - previous
            }
        ].concat(service.laps);
    }

    Timer {
        running: service.timerRunning
        interval: 200
        repeat: true
        onTriggered: service._tick()
    }

    Timer {
        running: service.stopwatchRunning
        interval: 50
        repeat: true
        onTriggered: service.stopwatchElapsedMs = service.stopwatchBaseMs + (Date.now() - service.stopwatchStartedAt)
    }
}