import Echo from 'laravel-echo';
import Pusher from 'pusher-js';

window.Pusher = Pusher;

// Reverb (Pusher protocol). The endpoint is injected at runtime by the layout
// (window.__clusev.reverb), derived from the effective panel domain — so changing the
// domain from the dashboard needs no JS rebuild. Falls back to Vite env for HMR/dev.
const rc = (typeof window !== 'undefined' && window.__clusev && window.__clusev.reverb) || {};
const reverbScheme = rc.scheme ?? import.meta.env.VITE_REVERB_SCHEME ?? 'https';
const reverbPort = Number(rc.port ?? import.meta.env.VITE_REVERB_PORT ?? (reverbScheme === 'https' ? 443 : 80));
// Channels are PRIVATE: Echo POSTs to /broadcasting/auth (web group → PanelScheme + session)
// before subscribing, so we must send the CSRF token the layout exposes as <meta name="csrf-token">.
const csrfToken = document.querySelector('meta[name="csrf-token"]')?.content;
window.Echo = new Echo({
    broadcaster: 'reverb',
    key: rc.key ?? import.meta.env.VITE_REVERB_APP_KEY,
    wsHost: rc.host ?? import.meta.env.VITE_REVERB_HOST,
    wsPort: reverbPort,
    wssPort: reverbPort,
    forceTLS: reverbScheme === 'https',
    enabledTransports: ['ws', 'wss'],
    auth: { headers: { 'X-CSRF-TOKEN': csrfToken } },
});

document.addEventListener('alpine:init', () => {
    // Live dual-series chart (CPU + MEM). Seeds from server-rendered data, then
    // appends each MetricsTicked broadcast and redraws (viewBox 0 0 300 100).
    window.Alpine.data('dualChart', (cpuSeed = [], memSeed = [], max = 40, server = null) => ({
        cpu: cpuSeed.slice(-max),
        mem: memSeed.slice(-max),
        max,
        server,
        connected: false,

        init() {
            const conn = window.Echo?.connector?.pusher?.connection;
            this.connected = conn?.state === 'connected';
            this._onState = (s) => { this.connected = s.current === 'connected'; };
            conn?.bind('state_change', this._onState);
            // PRIVATE channel: authorized via /broadcasting/auth (see routes/channels.php).
            this._channel = window.Echo?.private('metrics');
            this._channel?.listen('.tick', (e) => {
                // only react to the server this chart is showing
                if (this.server && e.server && e.server !== this.server) return;
                this.append(this.cpu, e.cpu);
                this.append(this.mem, e.mem);
            });
        },

        destroy() {
            // Echo.leave() tears down the public, private- and presence- variants of the
            // name, so this correctly unsubscribes the private-metrics channel.
            window.Echo?.leave('metrics');
            window.Echo?.connector?.pusher?.connection?.unbind('state_change', this._onState);
        },

        append(arr, v) {
            const n = Number(v);
            if (! Number.isFinite(n)) return;
            arr.push(n);
            if (arr.length > this.max) arr.shift();
        },

        _coords(arr) {
            const n = arr.length, w = 300, h = 100, pad = 6;
            return arr
                .map((v, i) => {
                    const x = n > 1 ? (i / (n - 1)) * w : 0;
                    const y = h - pad - (Math.max(0, Math.min(100, v)) / 100) * (h - 2 * pad);
                    return `${x.toFixed(1)},${y.toFixed(1)}`;
                })
                .join(' ');
        },

        get cpuLine() { return this._coords(this.cpu); },
        get cpuArea() { return `0,100 ${this._coords(this.cpu)} 300,100`; },
        get memLine() { return this._coords(this.mem); },
        get memArea() { return `0,100 ${this._coords(this.mem)} 300,100`; },
    }));

    // ── Command palette + keyboard shortcuts ────────────────────────────
    // Nav + action item labels are passed in from the Blade markup (already
    // translated via __()), so the palette stays in sync with the active locale.
    // CMDK_GO maps leader-key mnemonics to routes (i=dIenste, l=Log,
    // e=Einstellungen, y=sYstem — d/s already taken) and stays in JS.
    const CMDK_GO = { d: '/', s: '/servers', i: '/services', f: '/files', l: '/audit', e: '/settings', y: '/system', v: '/versions' };

    window.Alpine.data('cmdk', (nav = [], actions = []) => ({
        nav,
        actions,
        open: false,
        help: false,
        query: '',
        active: 0,
        leader: false,
        leaderTimer: null,

        init() {
            // Reset overlays after an SPA navigation. The component is recreated on each
            // wire:navigate, so we MUST remove this document listener in destroy() — else
            // every navigation would accumulate another permanent callback.
            this._onNav = () => {
                this.open = false;
                this.help = false;
                this.leader = false;
            };
            document.addEventListener('livewire:navigated', this._onNav);
        },

        destroy() {
            document.removeEventListener('livewire:navigated', this._onNav);
        },

        get items() {
            const q = this.query.trim().toLowerCase();
            const all = [...this.nav, ...this.actions];
            return q === '' ? all : all.filter((i) => i.label.toLowerCase().includes(q));
        },

        toggle(force) {
            this.open = force === true ? true : ! this.open;
            if (this.open) {
                this.help = false;
                this.query = '';
                this.active = 0;
                this.$nextTick(() => this.$refs.input?.focus());
            }
        },

        close() {
            this.open = false;
            this.help = false;
        },

        move(d) {
            const n = this.items.length;
            if (n) this.active = (this.active + d + n) % n;
        },

        run(item) {
            item = item || this.items[this.active] || null;
            if (! item) return;
            if (item.href) {
                this.navigate(item.href);
            } else if (item.action === 'create-server') {
                this.close();
                window.Livewire?.dispatch('openModal', { component: 'modals.create-server' });
            }
        },

        navigate(href) {
            this.close();
            if (window.Livewire?.navigate) window.Livewire.navigate(href);
            else window.location.href = href;
        },

        focusSearch() {
            const el = document.querySelector('[data-page-search]');
            if (el) {
                el.focus();

                return true;
            }

            return false;
        },

        go(key) {
            if (CMDK_GO[key]) this.navigate(CMDK_GO[key]);
        },

        onKey(e) {
            // Cmd/Ctrl-K toggles the palette even from within an input.
            if ((e.key === 'k' || e.key === 'K') && (e.metaKey || e.ctrlKey)) {
                e.preventDefault();
                this.toggle();
                return;
            }
            if (this.open || this.help) return; // overlay keys handled in the markup
            const t = e.target;
            if (t && (t.tagName === 'INPUT' || t.tagName === 'TEXTAREA' || t.tagName === 'SELECT' || t.isContentEditable)) return;
            if (e.metaKey || e.ctrlKey || e.altKey) return;
            // Only consume "/" when a page search exists — otherwise leave the browser's quick-find.
            if (e.key === '/') { if (this.focusSearch()) e.preventDefault(); return; }
            if (e.key === '?') { e.preventDefault(); this.help = true; return; }
            if (this.leader) {
                this.leader = false;
                clearTimeout(this.leaderTimer);
                this.go(e.key.toLowerCase());
                return;
            }
            if (e.key === 'g' || e.key === 'G') {
                this.leader = true;
                this.leaderTimer = setTimeout(() => { this.leader = false; }, 1200);
            }
        },
    }));
});