{% extends "base.html" %}
{% block title %}Editor · {{ filename }}{% endblock %}

{% block head %}
<style>
  /* Vollbild-Editor Layout */
  .editor-wrap {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 130px);
    gap: .75rem;
  }
  .editor-topbar {
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-shrink: 0;
    flex-wrap: wrap;
  }
  .editor-meta {
    flex: 1;
    min-width: 0;
  }
  .editor-filename {
    font-size: 1rem;
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .editor-breadcrumb {
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: .1rem;
  }
  #editor-textarea {
    flex: 1;
    width: 100%;
    resize: none;
    background: var(--bg-base);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.1rem 1.25rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: .875rem;
    line-height: 1.65;
    outline: none;
    transition: border-color .15s;
    tab-size: 2;
  }
  #editor-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(99,102,241,.15);
  }
  .editor-statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .75rem;
    color: var(--text-muted);
    flex-shrink: 0;
    padding: 0 .1rem;
  }
  #save-status {
    font-weight: 500;
    min-width: 120px;
    text-align: right;
  }
</style>
{% endblock %}

{% block content %}
{% if error %}
<div class="alert alert-danger">{{ error }}</div>
<a href="/files" class="btn btn-secondary">← Zurück zu Dateien</a>
{% else %}

<div class="editor-wrap">
  <!-- Topbar -->
  <div class="editor-topbar">
    <a href="/files" class="btn btn-outline-secondary btn-sm">← Zurück</a>
    <div class="editor-meta">
      <div class="editor-filename">{{ filename }}</div>
      <div class="editor-breadcrumb">
        {% if file_type == 'email' %}✉ Email-Vorlage · emails/{{ filename }}
        {% elif file_type == 'project' %}📄 Projektdokument · {{ filename }}
        {% elif file_type == 'agent' %}🤖 {{ agent_key }} · agents/{{ agent_key }}/work/{{ filename }}
        {% endif %}
      </div>
    </div>
    <button id="save-btn" class="btn btn-primary btn-sm" onclick="saveFile()">💾 Speichern</button>
  </div>

  <!-- Editor -->
  <textarea id="editor-textarea" spellcheck="false">{{ content }}</textarea>

  <!-- Statusbar -->
  <div class="editor-statusbar">
    <span id="cursor-pos">Zeile 1, Spalte 1</span>
    <span id="save-status"></span>
  </div>
</div>

<script>
const FILE_TYPE  = {{ file_type|tojson }};
const FILENAME   = {{ filename|tojson }};
const AGENT_KEY  = {{ agent_key|tojson }};

const ta = document.getElementById('editor-textarea');
const saveStatus = document.getElementById('save-status');
const cursorPos  = document.getElementById('cursor-pos');

// Cursor-Position anzeigen
ta.addEventListener('keyup', updateCursor);
ta.addEventListener('click', updateCursor);
function updateCursor() {
  const text = ta.value.substring(0, ta.selectionStart);
  const line = text.split('\n').length;
  const col  = text.split('\n').pop().length + 1;
  cursorPos.textContent = `Zeile ${line}, Spalte ${col}`;
}

// Tab-Taste einfügen statt Fokus verlieren
ta.addEventListener('keydown', function(e) {
  if (e.key === 'Tab') {
    e.preventDefault();
    const s = ta.selectionStart, end = ta.selectionEnd;
    ta.value = ta.value.substring(0, s) + '  ' + ta.value.substring(end);
    ta.selectionStart = ta.selectionEnd = s + 2;
  }
  // Ctrl/Cmd+S → Speichern
  if ((e.ctrlKey || e.metaKey) && e.key === 's') {
    e.preventDefault();
    saveFile();
  }
});

// Speichern
function saveFile() {
  const btn = document.getElementById('save-btn');
  btn.disabled = true;
  saveStatus.style.color = 'var(--text-muted)';
  saveStatus.textContent = 'Speichern…';

  let url;
  if (FILE_TYPE === 'email')   url = '/files/email/save/'   + encodeURIComponent(FILENAME);
  if (FILE_TYPE === 'project') url = '/files/project/save/' + encodeURIComponent(FILENAME);
  if (FILE_TYPE === 'agent')   url = '/files/agent/' + encodeURIComponent(AGENT_KEY) + '/save/' + encodeURIComponent(FILENAME);

  fetch(url, {
    method: 'POST',
    credentials: 'same-origin',
    headers: {'Content-Type': 'application/json'},
    body: JSON.stringify({content: ta.value})
  })
  .then(r => r.json())
  .then(d => {
    if (d.ok) {
      saveStatus.style.color = 'var(--success, #22c55e)';
      saveStatus.textContent = '✓ Gespeichert';
      setTimeout(() => { saveStatus.textContent = ''; }, 3000);
    } else {
      saveStatus.style.color = 'var(--danger, #ef4444)';
      saveStatus.textContent = '✗ ' + (d.error || 'Fehler');
    }
  })
  .catch(err => {
    saveStatus.style.color = 'var(--danger, #ef4444)';
    saveStatus.textContent = '✗ ' + err.message;
  })
  .finally(() => { btn.disabled = false; });
}

updateCursor();
</script>
{% endif %}
{% endblock %}