/**
 * Sync Clocks — CRUD, runtime controls, cards.
 */

import { _cachedSyncClocks, syncClocksCache } from '../core/state.js';
import { fetchWithAuth, escapeHtml } from '../core/api.js';
import { t } from '../core/i18n.js';
import { Modal } from '../core/modal.js';
import { showToast, showConfirm } from '../core/ui.js';
import { ICON_CLOCK, ICON_CLONE, ICON_EDIT, ICON_START, ICON_PAUSE } from '../core/icons.js';
import { wrapCard } from '../core/card-colors.js';
import { loadPictureSources } from './streams.js';

// ── Modal ──

class SyncClockModal extends Modal {
    constructor() { super('sync-clock-modal'); }

    snapshotValues() {
        return {
            name: document.getElementById('sync-clock-name').value,
            speed: document.getElementById('sync-clock-speed').value,
            description: document.getElementById('sync-clock-description').value,
        };
    }
}

const syncClockModal = new SyncClockModal();

// ── Show / Close ──

export async function showSyncClockModal(editData) {
    const isEdit = !!editData;
    const titleKey = isEdit ? 'sync_clock.edit' : 'sync_clock.add';
    document.getElementById('sync-clock-modal-title').innerHTML = `${ICON_CLOCK} ${t(titleKey)}`;
    document.getElementById('sync-clock-id').value = isEdit ? editData.id : '';
    document.getElementById('sync-clock-error').style.display = 'none';

    if (isEdit) {
        document.getElementById('sync-clock-name').value = editData.name || '';
        document.getElementById('sync-clock-speed').value = editData.speed ?? 1.0;
        document.getElementById('sync-clock-speed-display').textContent = editData.speed ?? 1.0;
        document.getElementById('sync-clock-description').value = editData.description || '';
    } else {
        document.getElementById('sync-clock-name').value = '';
        document.getElementById('sync-clock-speed').value = 1.0;
        document.getElementById('sync-clock-speed-display').textContent = '1';
        document.getElementById('sync-clock-description').value = '';
    }

    syncClockModal.open();
    syncClockModal.snapshot();
}

export async function closeSyncClockModal() {
    await syncClockModal.close();
}

// ── Save ──

export async function saveSyncClock() {
    const id = document.getElementById('sync-clock-id').value;
    const name = document.getElementById('sync-clock-name').value.trim();
    const speed = parseFloat(document.getElementById('sync-clock-speed').value);
    const description = document.getElementById('sync-clock-description').value.trim() || null;

    if (!name) {
        syncClockModal.showError(t('sync_clock.error.name_required'));
        return;
    }

    const payload = { name, speed, description };

    try {
        const method = id ? 'PUT' : 'POST';
        const url = id ? `/sync-clocks/${id}` : '/sync-clocks';
        const resp = await fetchWithAuth(url, {
            method,
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(payload),
        });
        if (!resp.ok) {
            const err = await resp.json().catch(() => ({}));
            throw new Error(err.detail || `HTTP ${resp.status}`);
        }
        showToast(t(id ? 'sync_clock.updated' : 'sync_clock.created'), 'success');
        syncClockModal.forceClose();
        await loadPictureSources();
    } catch (e) {
        if (e.isAuth) return;
        syncClockModal.showError(e.message);
    }
}

// ── Edit / Clone / Delete ──

export async function editSyncClock(clockId) {
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}`);
        if (!resp.ok) throw new Error(t('sync_clock.error.load'));
        const data = await resp.json();
        await showSyncClockModal(data);
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

export async function cloneSyncClock(clockId) {
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}`);
        if (!resp.ok) throw new Error(t('sync_clock.error.load'));
        const data = await resp.json();
        delete data.id;
        data.name = data.name + ' (copy)';
        await showSyncClockModal(data);
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

export async function deleteSyncClock(clockId) {
    const confirmed = await showConfirm(t('sync_clock.delete.confirm'));
    if (!confirmed) return;
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}`, { method: 'DELETE' });
        if (!resp.ok) {
            const err = await resp.json().catch(() => ({}));
            throw new Error(err.detail || `HTTP ${resp.status}`);
        }
        showToast(t('sync_clock.deleted'), 'success');
        await loadPictureSources();
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

// ── Runtime controls ──

export async function pauseSyncClock(clockId) {
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}/pause`, { method: 'POST' });
        if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
        showToast(t('sync_clock.paused'), 'success');
        await loadPictureSources();
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

export async function resumeSyncClock(clockId) {
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}/resume`, { method: 'POST' });
        if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
        showToast(t('sync_clock.resumed'), 'success');
        await loadPictureSources();
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

export async function resetSyncClock(clockId) {
    try {
        const resp = await fetchWithAuth(`/sync-clocks/${clockId}/reset`, { method: 'POST' });
        if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
        showToast(t('sync_clock.reset_done'), 'success');
        await loadPictureSources();
    } catch (e) {
        if (e.isAuth) return;
        showToast(e.message, 'error');
    }
}

// ── Card rendering ──

export function createSyncClockCard(clock) {
    const statusIcon = clock.is_running ? ICON_START : ICON_PAUSE;
    const statusLabel = clock.is_running ? t('sync_clock.status.running') : t('sync_clock.status.paused');
    const toggleAction = clock.is_running
        ? `pauseSyncClock('${clock.id}')`
        : `resumeSyncClock('${clock.id}')`;
    const toggleTitle = clock.is_running ? t('sync_clock.action.pause') : t('sync_clock.action.resume');

    return wrapCard({
        type: 'template-card',
        dataAttr: 'data-id',
        id: clock.id,
        removeOnclick: `deleteSyncClock('${clock.id}')`,
        removeTitle: t('common.delete'),
        content: `
            <div class="template-card-header">
                <div class="template-name">${ICON_CLOCK} ${escapeHtml(clock.name)}</div>
            </div>
            <div class="stream-card-props">
                <span class="stream-card-prop">${statusIcon} ${statusLabel}</span>
                <span class="stream-card-prop">${ICON_CLOCK} ${clock.speed}x</span>
            </div>
            ${clock.description ? `<div class="template-config" style="opacity:0.7;">${escapeHtml(clock.description)}</div>` : ''}`,
        actions: `
                <button class="btn btn-icon btn-secondary" onclick="event.stopPropagation(); ${toggleAction}" title="${toggleTitle}">${clock.is_running ? ICON_PAUSE : ICON_START}</button>
                <button class="btn btn-icon btn-secondary" onclick="event.stopPropagation(); resetSyncClock('${clock.id}')" title="${t('sync_clock.action.reset')}">${ICON_CLOCK}</button>
                <button class="btn btn-icon btn-secondary" onclick="cloneSyncClock('${clock.id}')" title="${t('common.clone')}">${ICON_CLONE}</button>
                <button class="btn btn-icon btn-secondary" onclick="editSyncClock('${clock.id}')" title="${t('common.edit')}">${ICON_EDIT}</button>`,
    });
}

// ── Expose to global scope for inline onclick handlers ──

window.showSyncClockModal = showSyncClockModal;
window.closeSyncClockModal = closeSyncClockModal;
window.saveSyncClock = saveSyncClock;
window.editSyncClock = editSyncClock;
window.cloneSyncClock = cloneSyncClock;
window.deleteSyncClock = deleteSyncClock;
window.pauseSyncClock = pauseSyncClock;
window.resumeSyncClock = resumeSyncClock;
window.resetSyncClock = resetSyncClock;