{% extends "base.html" %}
{% block title %}Settings — pngx-controller{% endblock %}
{% block content %}

<div class="page-hd">
  <h2>Settings</h2>
</div>

<form onsubmit="saveSettings(event)">

  <h3>Master Instance</h3>
  <article style="margin-bottom:1.5rem;">
    <div class="grid-2">
      <label>
        Master URL
        <input type="url" name="master_url" value="{{ settings.get('master_url', '') }}" placeholder="http://100.x.x.x:8000">
        <small>Paperless-ngx instance that acts as the source of truth.</small>
      </label>
      <label>
        Master API Token
        <input type="password" name="master_token" value="{{ env_master_token }}" placeholder="leave blank to keep current">
        <small>From Paperless &rarr; Settings &rarr; API &rarr; Auth Tokens.</small>
      </label>
    </div>
  </article>

  <h3>Sync Engine</h3>
  <article style="margin-bottom:1.5rem;">
    <div class="grid-auto">
      <label>
        Sync Interval (seconds)
        <input type="number" name="sync_interval_seconds" value="{{ settings.get('sync_interval_seconds', '900') }}" min="60">
        <small>How often the scheduler runs a sync cycle.</small>
      </label>
      <label>
        Cycle Timeout (seconds)
        <input type="number" name="sync_cycle_timeout_seconds" value="{{ settings.get('sync_cycle_timeout_seconds', '1800') }}" min="60">
        <small>Maximum wall-clock time for a full sync cycle.</small>
      </label>
      <label>
        Task Poll Timeout (seconds)
        <input type="number" name="task_poll_timeout_seconds" value="{{ settings.get('task_poll_timeout_seconds', '600') }}" min="30">
        <small>Timeout waiting for Paperless task completion.</small>
      </label>
      <label>
        Max Concurrent Requests
        <input type="number" name="max_concurrent_requests" value="{{ settings.get('max_concurrent_requests', '4') }}" min="1" max="20">
        <small>Semaphore limit for parallel API calls.</small>
      </label>
      <label>
        Suspend Threshold
        <input type="number" name="replica_suspend_threshold" value="{{ settings.get('replica_suspend_threshold', '5') }}" min="1">
        <small>Consecutive failures before a replica is suspended.</small>
      </label>
      <label>
        Log Retention (days)
        <input type="number" name="log_retention_days" value="{{ settings.get('log_retention_days', '90') }}" min="1">
        <small>Automatically prune log entries older than this.</small>
      </label>
    </div>
  </article>

  <h3>Notifications</h3>
  <article style="margin-bottom:1.5rem;">
    <div class="grid-auto">
      <label>
        Alert Target
        <select name="alert_target_type">
          <option value="" {% if not settings.get('alert_target_type') %}selected{% endif %}>Disabled</option>
          <option value="gotify" {% if settings.get('alert_target_type') == 'gotify' %}selected{% endif %}>Gotify</option>
          <option value="webhook" {% if settings.get('alert_target_type') == 'webhook' %}selected{% endif %}>Webhook</option>
        </select>
        <small>Where to send sync failure alerts.</small>
      </label>
      <label>
        Alert URL
        <input type="url" name="alert_target_url" value="{{ settings.get('alert_target_url', '') }}" placeholder="https://&hellip;">
        <small>Gotify server URL or webhook endpoint.</small>
      </label>
      <label>
        Alert Token / Auth Header
        <input type="password" name="alert_target_token" value="{{ env_alert_token }}" placeholder="leave blank to keep current">
        <small>Gotify token or Authorization header value.</small>
      </label>
      <label>
        Alert Error Threshold
        <input type="number" name="alert_error_threshold" value="{{ settings.get('alert_error_threshold', '5') }}" min="1">
        <small>Number of failed docs before an alert is sent.</small>
      </label>
      <label>
        Alert Cooldown (seconds)
        <input type="number" name="alert_cooldown_seconds" value="{{ settings.get('alert_cooldown_seconds', '3600') }}" min="60">
        <small>Minimum time between repeated alerts.</small>
      </label>
    </div>
  </article>

  <div style="display:flex; gap:.5rem; align-items:center; flex-wrap:wrap;">
    <button type="submit" id="save-btn">Save Settings</button>
    <button type="button" id="test-btn" class="secondary outline" onclick="testConnection()">
      Test Connection
    </button>
    <span id="settings-result"></span>
  </div>

</form>

<script>
function formBody() {
  const form = document.querySelector('form');
  const data = Object.fromEntries(new FormData(form));
  const body = {};
  for (const [k, v] of Object.entries(data)) {
    if (v === '') continue;
    const isNumericKey = ['sync_interval_seconds','sync_cycle_timeout_seconds',
      'task_poll_timeout_seconds','max_concurrent_requests','replica_suspend_threshold',
      'log_retention_days','alert_error_threshold','alert_cooldown_seconds'].includes(k);
    body[k] = isNumericKey ? Number(v) : v;
  }
  return body;
}

function setResult(html) { document.getElementById('settings-result').innerHTML = html; }

function setLoading(btn, label) {
  btn.setAttribute('aria-busy', 'true');
  btn.disabled = true;
  btn.dataset.orig = btn.textContent;
  btn.textContent = label;
}

function clearLoading(btn) {
  btn.removeAttribute('aria-busy');
  btn.disabled = false;
  btn.textContent = btn.dataset.orig || btn.textContent;
}

async function saveSettings(e) {
  e.preventDefault();
  const btn = document.getElementById('save-btn');
  setLoading(btn, 'Saving\u2026');
  setResult('');
  try {
    const r = await fetch('/api/settings', {
      method: 'PUT',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify(formBody()),
    });
    const json = await r.json();
    if (r.ok) {
      setResult('<span class="badge badge-ok">\u2713 Settings saved</span>');
    } else {
      const detail = typeof json.detail === 'string' ? json.detail : JSON.stringify(json.detail);
      setResult('<span class="badge badge-error">\u2717 ' + detail + '</span>');
    }
  } catch (err) {
    setResult('<span class="badge badge-error">\u2717 Network error: ' + err.message + '</span>');
  } finally {
    clearLoading(btn);
  }
}

async function testConnection() {
  const btn = document.getElementById('test-btn');
  setLoading(btn, 'Testing\u2026');
  setResult('');
  try {
    const form = document.querySelector('form');
    const url = form.querySelector('[name=master_url]').value.trim();
    const token = form.querySelector('[name=master_token]').value.trim();
    const r = await fetch('/api/settings/test', {
      method: 'POST',
      headers: {'Content-Type': 'application/json'},
      body: JSON.stringify({url, token}),
    });
    const data = await r.json();
    if (data.ok) {
      setResult('<span class="badge badge-ok">\u2713 Connected &mdash; ' + data.doc_count + ' docs &middot; ' + data.latency_ms + 'ms</span>');
    } else {
      setResult('<span class="badge badge-error">\u2717 ' + (data.error || 'Connection failed') + '</span>');
    }
  } catch (err) {
    setResult('<span class="badge badge-error">\u2717 ' + err.message + '</span>');
  } finally {
    clearLoading(btn);
  }
}
</script>

{% endblock %}