{% extends "shared/frontend/base.html" %}

{% block title %}SQL Console - BMC Hub{% endblock %}

{% block content %}
<div class="container-fluid">
    <div class="d-flex align-items-center justify-content-between mb-4">
        <div>
            <h2 class="mb-1"><i class="bi bi-database me-2"></i>SQL Console</h2>
            <div class="text-muted small">Read-only SQL for superadmin. Kun SELECT/WITH queries.</div>
        </div>
    </div>

    <div class="card border-0 shadow-sm mb-4">
        <div class="card-body">
            <div class="mb-3">
                <label class="form-label">Presets</label>
                <div class="d-flex flex-wrap gap-2" id="sqlPresets">
                    <button type="button" class="btn btn-outline-secondary btn-sm" data-preset="serverTime">Server time</button>
                    <button type="button" class="btn btn-outline-secondary btn-sm" data-preset="telefoniLatest">Telefoni latest</button>
                    <button type="button" class="btn btn-outline-secondary btn-sm" data-preset="telefoniCount">Telefoni count</button>
                    <button type="button" class="btn btn-outline-secondary btn-sm" data-preset="missionLatest">Mission latest</button>
                    <button type="button" class="btn btn-outline-secondary btn-sm" data-preset="sourceCompare">Source compare</button>
                </div>
            </div>
            <div class="mb-3">
                <label for="sqlQuery" class="form-label">SQL query</label>
                <textarea id="sqlQuery" class="form-control" rows="8" spellcheck="false" placeholder="SELECT * FROM telefoni_opkald ORDER BY started_at DESC"></textarea>
            </div>
            <div class="row g-3 align-items-end">
                <div class="col-md-2">
                    <label for="sqlLimit" class="form-label">Limit</label>
                    <input id="sqlLimit" type="number" class="form-control" value="200" min="1" max="1000" />
                </div>
                <div class="col-md-10 d-flex gap-2 justify-content-end">
                    <button id="runSqlBtn" class="btn btn-primary">
                        <i class="bi bi-play-fill me-1"></i>Run Query
                    </button>
                </div>
            </div>
            <div id="sqlStatus" class="alert alert-info py-2 mt-3 mb-0">Ready</div>
        </div>
    </div>

    <div class="card border-0 shadow-sm">
        <div class="card-body">
            <div class="table-responsive">
                <table class="table table-sm table-striped align-middle mb-0">
                    <thead id="sqlResultHead"></thead>
                    <tbody id="sqlResultBody">
                        <tr><td class="text-muted">No results yet</td></tr>
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
const SQL_PRESETS = {
    serverTime: {
        query: 'SELECT now() AS server_time',
        limit: 50,
    },
    telefoniLatest: {
        query: `SELECT id, callid, direction, ekstern_nummer, started_at, ended_at, duration_sec\nFROM telefoni_opkald\nORDER BY started_at DESC\nLIMIT 50`,
        limit: 50,
    },
    telefoniCount: {
        query: 'SELECT COUNT(*) AS total_calls, MAX(started_at) AS latest_started_at FROM telefoni_opkald',
        limit: 50,
    },
    missionLatest: {
        query: `SELECT call_id, state, caller_number, contact_name, company_name, started_at, ended_at\nFROM mission_call_state\nORDER BY started_at DESC\nLIMIT 50`,
        limit: 50,
    },
    sourceCompare: {
        query: `WITH telefoni AS (\n  SELECT 'telefoni_opkald'::text AS source, COUNT(*)::bigint AS total_calls, MAX(started_at) AS latest_started_at\n  FROM telefoni_opkald\n), mission AS (\n  SELECT 'mission_call_state'::text AS source, COUNT(*)::bigint AS total_calls, MAX(started_at) AS latest_started_at\n  FROM mission_call_state\n)\nSELECT * FROM telefoni\nUNION ALL\nSELECT * FROM mission`,
        limit: 50,
    },
};

function escapeHtml(value) {
    return String(value ?? '')
        .replaceAll('&', '&amp;')
        .replaceAll('<', '&lt;')
        .replaceAll('>', '&gt;')
        .replaceAll('"', '&quot;')
        .replaceAll("'", '&#039;');
}

function renderResults(data) {
    const head = document.getElementById('sqlResultHead');
    const body = document.getElementById('sqlResultBody');
    const columns = Array.isArray(data.columns) ? data.columns : [];
    const rows = Array.isArray(data.rows) ? data.rows : [];

    if (columns.length === 0) {
        head.innerHTML = '';
        body.innerHTML = '<tr><td class="text-muted">No rows returned</td></tr>';
        return;
    }

    head.innerHTML = '<tr>' + columns.map((c) => `<th>${escapeHtml(c)}</th>`).join('') + '</tr>';

    if (rows.length === 0) {
        body.innerHTML = `<tr><td colspan="${columns.length}" class="text-muted">No rows returned</td></tr>`;
        return;
    }

    body.innerHTML = rows.map((row) => {
        return '<tr>' + columns.map((c) => {
            const value = row[c];
            if (value === null || value === undefined) return '<td class="text-muted">NULL</td>';
            if (typeof value === 'object') return `<td>${escapeHtml(JSON.stringify(value))}</td>`;
            return `<td>${escapeHtml(String(value))}</td>`;
        }).join('') + '</tr>';
    }).join('');
}

async function runSqlQuery() {
    const query = (document.getElementById('sqlQuery').value || '').trim();
    const limitInput = Number(document.getElementById('sqlLimit').value || 200);
    const limit = Number.isFinite(limitInput) ? limitInput : 200;
    const status = document.getElementById('sqlStatus');
    const button = document.getElementById('runSqlBtn');

    status.className = 'alert alert-info py-2 mt-3 mb-0';
    status.textContent = 'Running query...';
    button.disabled = true;

    try {
        const response = await fetch('/settings/sql/execute', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            credentials: 'include',
            body: JSON.stringify({ query, limit }),
        });

        if (!response.ok) {
            const errorData = await response.json().catch(() => ({}));
            const message = errorData.detail || 'Failed to run query';
            status.className = 'alert alert-danger py-2 mt-3 mb-0';
            status.textContent = message;
            return;
        }

        const data = await response.json();
        renderResults(data);
        status.className = 'alert alert-success py-2 mt-3 mb-0';
        status.textContent = `Rows returned: ${data.row_count} (limit ${data.limit})`;
    } catch (error) {
        status.className = 'alert alert-danger py-2 mt-3 mb-0';
        status.textContent = 'Network or server error while running query';
    } finally {
        button.disabled = false;
    }
}

document.addEventListener('DOMContentLoaded', () => {
    const queryEl = document.getElementById('sqlQuery');
    const limitEl = document.getElementById('sqlLimit');

    document.getElementById('runSqlBtn').addEventListener('click', runSqlQuery);
    queryEl.addEventListener('keydown', (event) => {
        if ((event.metaKey || event.ctrlKey) && event.key === 'Enter') {
            event.preventDefault();
            runSqlQuery();
        }
    });

    document.querySelectorAll('#sqlPresets [data-preset]').forEach((button) => {
        button.addEventListener('click', () => {
            const key = button.getAttribute('data-preset');
            const preset = SQL_PRESETS[key];
            if (!preset) return;
            queryEl.value = preset.query;
            limitEl.value = String(preset.limit || 50);
            queryEl.focus();
        });
    });

    queryEl.value = SQL_PRESETS.serverTime.query;
    limitEl.value = String(SQL_PRESETS.serverTime.limit);
});
</script>
{% endblock %}