{% extends "base.html" %}

{% block title %}Maintenance - Admin - DigiServer v2{% endblock %}

{% block content %}
<style>
    /* Theme-aware building blocks for the maintenance console. Using the
       variables defined in base.html keeps every panel readable in both the
       light and dark themes (inline colours would override the theme). */
    .maint-panel {
        background: var(--bg-color);
        border: 1px solid var(--border-color);
        border-radius: 8px;
    }

    .maint-thead {
        background: var(--card-bg);
    }

    .maint-badge-pending {
        display: inline-block;
        padding: 3px 8px;
        border-radius: 999px;
        font-size: 12px;
        font-weight: 600;
        background: #fef3c7;
        color: #92400e;
    }

    body.dark-mode .maint-badge-pending {
        background: #4a3800;
        color: #fbbf24;
    }

    /* Muted description text should stay readable on the dark card. */
    body.dark-mode .card > p[style*="color: #6c757d"] {
        color: var(--text-secondary) !important;
    }
</style>

<div style="max-width: 1200px; margin: 0 auto;">
    <div style="margin-bottom: 30px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px;">
        <div>
            <h1 style="display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.25rem;">
                🛠️ Maintenance
            </h1>
            <p style="color: #6c757d; margin: 0;">
                Administrative tools for database health, leftover records and player authentication.
            </p>
        </div>
        <a href="{{ url_for('admin.admin_panel') }}" class="btn btn-secondary">
            ← Back to Admin
        </a>
    </div>

    <!-- ================= Database Integrity ================= -->
    <div class="card" style="margin-bottom: 30px;">
        <h2>🧩 Database Integrity</h2>
        <p style="color: #6c757d; margin-bottom: 20px;">
            Runs SQLite's <code>integrity_check</code>, <code>quick_check</code> and
            <code>foreign_key_check</code> to confirm the database file is healthy and
            no rows reference missing parents. <strong>Optimize</strong> runs
            <code>VACUUM</code> and <code>ANALYZE</code> to reclaim free space.
        </p>
        <div style="display: flex; gap: 10px; flex-wrap: wrap;">
            <button type="button" class="btn btn-primary" id="btn-integrity">🔍 Check Integrity</button>
            <button type="button" class="btn btn-warning" id="btn-optimize"
                    onclick="return confirm('Compact the database now? This may take a few seconds.');">
                🧹 Optimize Database
            </button>
        </div>
        <div id="integrity-result" style="margin-top: 20px;"></div>
    </div>

    <!-- ================= Leftover / Orphaned Records ================= -->
    <div class="card" style="margin-bottom: 30px;">
        <h2>🧾 Leftover Database Records</h2>
        <p style="color: #6c757d; margin-bottom: 20px;">
            Rows that point at a player, playlist or content item that no longer exists —
            typically left behind after deleting a player. Cleaning removes them (or
            clears the dangling link); it never touches valid data.
        </p>
        <div style="display: flex; gap: 10px; flex-wrap: wrap;">
            <button type="button" class="btn btn-primary" id="btn-scan">🔍 Scan for Leftovers</button>
            <button type="button" class="btn btn-danger" id="btn-clean"
                    onclick="return confirm('Remove all leftover database records and orphaned edited-media folders? This cannot be undone.');">
                🗑️ Clean Leftovers
            </button>
        </div>
        <div id="orphan-result" style="margin-top: 20px;"></div>
    </div>

    <!-- ================= Player Authentication Tokens ================= -->
    <div class="card" style="margin-bottom: 30px;">
        <h2>🔑 Player Authentication Tokens</h2>
        <p style="color: #6c757d; margin-bottom: 20px;">
            Resetting a token invalidates the player's current credentials. On its next
            heartbeat the player is told to authenticate again and receives a fresh token.
        </p>

        <form method="POST" action="{{ url_for('admin.maintenance_set_interval') }}"
              class="maint-panel"
              style="display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-bottom: 25px; padding: 15px;">
            <div>
                <label for="interval_days" style="display: block; font-weight: 600; margin-bottom: 6px;">
                    Automatic reset interval
                </label>
                <input type="number" id="interval_days" name="interval_days" min="0" step="1"
                       value="{{ interval_days }}"
                       style="padding: 10px; border: 1px solid var(--border-color); border-radius: 6px; width: 140px;">
            </div>
            <div style="flex: 1; min-width: 220px; color: var(--text-secondary); font-size: 0.9rem;">
                Days before a token expires automatically. Use <strong>0</strong> to disable.
                {% if auth_config %}
                <br>Last changed by <strong>{{ auth_config.updated_by or 'unknown' }}</strong>
                {% if auth_config.updated_at %}
                on {{ auth_config.updated_at | localtime('%Y-%m-%d %H:%M') }}
                {% endif %}
                {% else %}
                <br>Not configured yet.
                {% endif %}
            </div>
            <button type="submit" class="btn btn-primary">💾 Save Interval</button>
        </form>

        <form method="POST" action="{{ url_for('admin.maintenance_reset_all_tokens') }}"
              onsubmit="return confirm('Reset the authentication token for ALL players? Each player will re-authenticate on its next heartbeat.');"
              style="margin-bottom: 20px;">
            <button type="submit" class="btn btn-danger">🔁 Reset All Player Tokens</button>
        </form>

        <div style="max-height: 460px; overflow-y: auto;">
            <table class="table" style="width: 100%; border-collapse: collapse;">
                <thead class="maint-thead" style="position: sticky; top: 0; z-index: 1;">
                    <tr>
                        <th style="padding: 10px; text-align: left; border-bottom: 2px solid var(--border-color);">Player</th>
                        <th style="padding: 10px; text-align: left; border-bottom: 2px solid var(--border-color);">Status</th>
                        <th style="padding: 10px; text-align: left; border-bottom: 2px solid var(--border-color);">Token Age</th>
                        <th style="padding: 10px; text-align: left; border-bottom: 2px solid var(--border-color);">Re-auth</th>
                        <th style="padding: 10px; text-align: right; border-bottom: 2px solid var(--border-color);">Actions</th>
                    </tr>
                </thead>
                <tbody>
                    {% for player in players %}
                    {% set age = player.auth_token_age_days() %}
                    <tr style="border-bottom: 1px solid var(--border-color);">
                        <td style="padding: 10px;">
                            <strong>{{ player.name }}</strong>
                            <div style="font-size: 12px; color: var(--text-secondary);">{{ player.hostname }}</div>
                        </td>
                        <td style="padding: 10px;">
                            {% if player.is_online %}
                            <span style="color: #16a34a; font-weight: 600;">● Online</span>
                            {% else %}
                            <span style="color: var(--text-secondary);">○ {{ player.status or 'offline' }}</span>
                            {% endif %}
                        </td>
                        <td style="padding: 10px;">
                            {% if age is not none %}
                            {{ '%.1f'|format(age) }} day(s)
                            {% if player.auth_token_issued_at %}
                            <div style="font-size: 12px; color: var(--text-secondary);">
                                issued {{ player.auth_token_issued_at | localtime('%Y-%m-%d %H:%M') }}
                            </div>
                            {% endif %}
                            {% else %}
                            <span style="color: var(--text-secondary);">—</span>
                            {% endif %}
                        </td>
                        <td style="padding: 10px;">
                            {% if player.auth_reset_required %}
                            <span class="maint-badge-pending">pending</span>
                            {% else %}
                            <span style="color: var(--text-secondary); font-size: 12px;">—</span>
                            {% endif %}
                        </td>
                        <td style="padding: 10px; text-align: right; white-space: nowrap;">
                            <form method="POST"
                                  action="{{ url_for('admin.maintenance_reset_token', player_id=player.id) }}"
                                  style="display: inline;"
                                  onsubmit="return confirm('Reset the token for {{ player.name }}?');">
                                <button type="submit" class="btn btn-warning btn-sm"
                                        style="padding: 4px 10px; font-size: 12px;">🔁 Reset</button>
                            </form>
                            {% if player.auth_reset_required %}
                            <form method="POST"
                                  action="{{ url_for('admin.maintenance_cancel_reset', player_id=player.id) }}"
                                  style="display: inline;">
                                <button type="submit" class="btn btn-secondary btn-sm"
                                        style="padding: 4px 10px; font-size: 12px;">Cancel</button>
                            </form>
                            {% endif %}
                        </td>
                    </tr>
                    {% else %}
                    <tr>
                        <td colspan="5" style="padding: 30px; text-align: center; color: var(--text-secondary);">
                            No players registered yet.
                        </td>
                    </tr>
                    {% endfor %}
                </tbody>
            </table>
        </div>
    </div>
</div>

<script>
(function () {
    const URLS = {
        integrity: "{{ url_for('admin.maintenance_db_integrity') }}",
        optimize: "{{ url_for('admin.maintenance_optimize_db') }}",
        scan: "{{ url_for('admin.maintenance_scan_orphans') }}",
        clean: "{{ url_for('admin.maintenance_clean_orphans') }}"
    };

    const integrityBox = document.getElementById('integrity-result');
    const orphanBox = document.getElementById('orphan-result');

    function post(url) {
        return fetch(url, {
            method: 'POST',
            headers: { 'X-Requested-With': 'XMLHttpRequest' }
        }).then(function (r) { return r.json(); });
    }

    function banner(ok, text) {
        const bg = ok ? '#dcfce7' : '#fee2e2';
        const fg = ok ? '#166534' : '#991b1b';
        const icon = ok ? '✓' : '✕';
        return '<div style="padding: 12px 15px; border-radius: 8px; background: ' + bg +
               '; color: ' + fg + '; font-weight: 600;">' + icon + ' ' + text + '</div>';
    }

    function tableRow(cells) {
        return '<tr>' + cells.map(function (c) {
            return '<td style="padding: 8px 10px; border-bottom: 1px solid var(--border-color);">' + c + '</td>';
        }).join('') + '</tr>';
    }

    function esc(s) {
        return String(s === null || s === undefined ? '' : s)
            .replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
    }

    function setBusy(button, busy, label) {
        if (!button) { return; }
        if (busy) {
            button.dataset.original = button.innerHTML;
            button.disabled = true;
            button.innerHTML = label || '⏳ Working…';
        } else {
            button.disabled = false;
            if (button.dataset.original) { button.innerHTML = button.dataset.original; }
        }
    }

    // ---- Integrity ----
    const btnIntegrity = document.getElementById('btn-integrity');
    btnIntegrity.addEventListener('click', function () {
        setBusy(btnIntegrity, true, '⏳ Checking…');
        integrityBox.innerHTML = '';
        post(URLS.integrity).then(function (data) {
            if (!data.success) {
                integrityBox.innerHTML = banner(false, 'Check failed: ' + esc(data.error));
                return;
            }
            let html = '';
            html += banner(data.ok,
                data.ok ? 'Database integrity OK — no problems found.'
                        : 'Issues detected — review the details below.');
            html += '<div style="margin-top: 12px; font-size: 0.9rem; color: var(--text-secondary);">' +
                '<div>Integrity check: <strong>' + esc(data.integrity.join(', ')) + '</strong></div>' +
                '<div>Quick check: <strong>' + esc(data.quick_check.join(', ')) + '</strong></div>' +
                '<div>Database size: <strong>' + esc(data.db_size_mb) + ' MB</strong>' +
                ' &nbsp;·&nbsp; Reclaimable free space: <strong>' + esc(data.freelist_mb) + ' MB</strong></div>' +
                '</div>';
            if (data.foreign_key_violations.length) {
                html += '<h3 style="margin: 18px 0 8px;">Foreign-key violations (' +
                    data.foreign_key_violations.length + ')</h3>';
                html += '<table class="table" style="width: 100%; border-collapse: collapse;">';
                html += '<thead><tr>' +
                    ['Table', 'Row ID', 'Missing parent', 'Constraint'].map(function (h) {
                        return '<th style="padding: 8px; text-align: left; border-bottom: 2px solid var(--border-color);">' + h + '</th>';
                    }).join('') + '</tr></thead><tbody>';
                data.foreign_key_violations.slice(0, 100).forEach(function (v) {
                    html += tableRow([esc(v.table), esc(v.rowid), esc(v.parent), esc(v.constraint)]);
                });
                html += '</tbody></table>';
            }
            integrityBox.innerHTML = html;
        }).catch(function (e) {
            integrityBox.innerHTML = banner(false, 'Request failed: ' + e);
        }).finally(function () {
            setBusy(btnIntegrity, false);
        });
    });

    // ---- Optimize ----
    const btnOptimize = document.getElementById('btn-optimize');
    btnOptimize.addEventListener('click', function () {
        setBusy(btnOptimize, true, '⏳ Optimizing…');
        post(URLS.optimize).then(function (data) {
            if (data.success) {
                integrityBox.innerHTML = banner(true,
                    'Database optimized. Current size: ' + esc(data.db_size_mb) + ' MB.');
            } else {
                integrityBox.innerHTML = banner(false, 'Optimize failed: ' + esc(data.error));
            }
        }).catch(function (e) {
            integrityBox.innerHTML = banner(false, 'Request failed: ' + e);
        }).finally(function () {
            setBusy(btnOptimize, false);
        });
    });

    // ---- Scan orphans ----
    const btnScan = document.getElementById('btn-scan');
    btnScan.addEventListener('click', function () {
        setBusy(btnScan, true, '⏳ Scanning…');
        orphanBox.innerHTML = '';
        post(URLS.scan).then(function (data) {
            if (!data.success) {
                orphanBox.innerHTML = banner(false, 'Scan failed.');
                return;
            }
            const em = data.edited_media || {};
            const total = data.total + (em.count || 0);
            let html = banner(total === 0,
                total === 0 ? 'No leftover records or files found.'
                            : total + ' leftover item(s) found.');

            html += '<table class="table" style="width: 100%; border-collapse: collapse; margin-top: 15px;">';
            html += '<thead><tr>' +
                ['Type', 'Table', 'Action', 'Count'].map(function (h) {
                    return '<th style="padding: 8px; text-align: left; border-bottom: 2px solid var(--border-color);">' + h + '</th>';
                }).join('') + '</tr></thead><tbody>';
            data.checks.forEach(function (c) {
                if (c.error) {
                    html += tableRow([esc(c.label), esc(c.table), '—',
                        '<span style="color: #b91c1c;">error: ' + esc(c.error) + '</span>']);
                } else {
                    const colour = c.count > 0 ? '#b91c1c' : '#16a34a';
                    html += tableRow([esc(c.label), esc(c.table), esc(c.action),
                        '<strong style="color: ' + colour + ';">' + c.count + '</strong>']);
                }
            });
            if (em.count) {
                html += tableRow(['Orphaned edited-media folders on disk', 'edited_media',
                    'delete', '<strong style="color: #b91c1c;">' + em.count +
                    '</strong> (' + esc(em.size_mb) + ' MB)']);
            }
            html += '</tbody></table>';
            orphanBox.innerHTML = html;
        }).catch(function (e) {
            orphanBox.innerHTML = banner(false, 'Request failed: ' + e);
        }).finally(function () {
            setBusy(btnScan, false);
        });
    });

    // ---- Clean orphans ----
    const btnClean = document.getElementById('btn-clean');
    btnClean.addEventListener('click', function () {
        setBusy(btnClean, true, '⏳ Cleaning…');
        post(URLS.clean).then(function (data) {
            let html = banner(data.success && !data.errors.length,
                'Removed ' + data.total_rows + ' database row(s) and ' +
                data.removed_dirs + ' media folder(s); freed ' + data.freed_mb + ' MB.');
            if (data.cleaned && data.cleaned.length) {
                html += '<table class="table" style="width: 100%; border-collapse: collapse; margin-top: 15px;">';
                html += '<thead><tr>' +
                    ['Record type', 'Action', 'Rows removed'].map(function (h) {
                        return '<th style="padding: 8px; text-align: left; border-bottom: 2px solid var(--border-color);">' + h + '</th>';
                    }).join('') + '</tr></thead><tbody>';
                data.cleaned.forEach(function (c) {
                    html += tableRow([esc(c.label), esc(c.action), c.rows]);
                });
                html += '</tbody></table>';
            }
            if (data.errors && data.errors.length) {
                html += '<h3 style="margin: 18px 0 8px; color: #b91c1c;">Errors</h3>';
                html += '<table class="table" style="width: 100%; border-collapse: collapse;">';
                data.errors.forEach(function (e) {
                    html += tableRow([esc(e.label), esc(e.error)]);
                });
                html += '</table>';
            }
            orphanBox.innerHTML = html;
        }).catch(function (e) {
            orphanBox.innerHTML = banner(false, 'Request failed: ' + e);
        }).finally(function () {
            setBusy(btnClean, false);
        });
    });
})();
</script>
{% endblock %}