// ==========================================
// Chat Switchboard — SDK Entry Point
// ==========================================
// Assembles all SDK modules into the `sw` object
// and runs the boot sequence.
//
// Usage:
//   import { boot } from './js/sw/sdk/index.js';
//   const sw = await boot();
//
// Exports: boot() → window.sw
// ==========================================

import { createRestClient } from './rest-client.js';
import { createAuth }       from './auth.js';
import { createCan }        from './can.js';
import { createDomains }    from './api-domains.js';
import { createEvents }     from './events.js';
import { createPipe }       from './pipe.js';
import { createTheme }      from './theme.js';
import { confirm }          from '../primitives/confirm.js';
import { prompt }           from '../primitives/prompt.js';

/**
 * Boot the SDK. Assembles modules, loads auth state, connects WebSocket.
 * Idempotent — returns the same sw object on subsequent calls.
 *
 * @returns {Promise<object>} sw
 */
export async function boot() {
    // Idempotent
    if (window.sw?._sdk) return window.sw;

    // 1. Auth — owns token state
    const auth = createAuth();

    // 2. REST client — uses auth for token injection + refresh
    const restClient = createRestClient(
        () => auth._getToken(),
        () => auth._onRefresh(),
        () => auth._on401Failure()
    );

    // 3. Wire rest client into auth (auth needs it for login/refresh/permissions calls)
    auth._setRestClient(restClient);

    // 4. Events — with WS auth callback
    const events = createEvents(async () => {
        // Prefer ticket exchange
        try {
            const data = await restClient.post('/api/v1/ws/ticket', {});
            if (data?.ticket) return `ticket=${encodeURIComponent(data.ticket)}`;
        } catch (_) { /* fall through to legacy */ }
        // Legacy fallback: JWT in query param
        const token = auth._getToken();
        return token ? `token=${encodeURIComponent(token)}` : null;
    });

    // 5. Wire emit into auth
    auth._setEmit(events.emit.bind(events));

    // 6. Remaining modules
    const { can, isAdmin, isTeamAdmin } = createCan(auth);
    const api   = createDomains(restClient);
    const pipe  = createPipe();
    const theme = createTheme(events.emit.bind(events));

    // 7. Assemble sw object
    const sw = Object.create(null);

    // Auth
    sw.auth = auth;

    // API domains
    sw.api = api;

    // RBAC
    sw.can = can;
    Object.defineProperty(sw, 'isAdmin', {
        get() { return isAdmin(); },
        enumerable: true,
    });
    sw.isTeamAdmin = isTeamAdmin;

    // Events (expose as top-level convenience + events namespace for connect/disconnect)
    sw.on   = events.on.bind(events);
    sw.once = events.once.bind(events);
    sw.off  = events.off.bind(events);
    sw.emit = events.emit.bind(events);
    sw.events = events;

    // Pipe & Theme
    sw.pipe  = pipe;
    sw.theme = theme;

    // Shell helpers — imperative confirm/prompt backed by primitives
    sw.confirm = confirm;
    sw.prompt  = prompt;

    // Toast — dynamic import to avoid module resolution issues
    try {
        const toastMod = await import('../primitives/toast.js');
        sw.toast = toastMod.toast;
        events.on('toast', ({ message, variant, duration }) => {
            toastMod.toast(message, variant, duration);
        });
    } catch (e) {
        console.warn('[sw] Toast import failed:', e.message);
    }

    // UserMenu render helper — surfaces call sw.userMenu(container, opts)
    sw.userMenu = function (container, opts = {}) {
        import('../shell/user-menu.js').then(({ UserMenu }) => {
            const { render } = preact;
            render(html`<${UserMenu} ...${opts} />`, container);
        });
    };

    // Marker for idempotency
    sw._sdk = '0.37.5';

    // 8. Expose globally
    window.sw = sw;

    // 9. Boot sequence
    theme.init();

    try {
        await auth.boot();
    } catch (e) {
        console.warn('[sw] Auth boot failed (expected without backend):', e.message);
    }

    if (auth.isAuthenticated) {
        const BASE = window.__BASE__ || '';
        events.connect(BASE + '/ws');
    }

    // 10. Signal ready
    events.emit('sdk.ready', {}, { localOnly: true });
    document.dispatchEvent(new CustomEvent('sw:ready', { detail: { sw } }));
    console.log('[sw] SDK v0.37.5 ready');

    return sw;
}