{% extends "base.html" %}
{% block title %}Planung – Finanzberatung{% endblock %}
{% block content %}
<h1>Planung</h1>

<section class="planning-section">
  <h2>Wiederkehrende Posten</h2>
  <table>
    <thead>
      <tr><th>Name</th><th>Betrag</th><th>Rhythmus</th><th>Fälligkeitstag</th><th>Start</th><th>Ende</th><th>Kategorie</th><th></th></tr>
    </thead>
    <tbody>
      {% for r in recurring %}
      <tr id="rec-row-{{ r.id }}">
        <td>{{ r.name }}</td>
        <td class="{{ 'neg' if r.amount < 0 else '' }}">{{ r.amount|eur }} €</td>
        <td>{{ r.rhythm|de_label }}</td>
        <td>{{ r.due_day }}</td>
        <td>{{ r.start_date.strftime('%d.%m.%Y') if r.start_date else '–' }}</td>
        <td>{{ r.end_date.strftime('%d.%m.%Y') if r.end_date else '–' }}</td>
        <td>{{ category_names.get(r.category_id, '–') }}</td>
        <td>
          <button type="button" onclick="toggleEdit('rec', {{ r.id }}, true)">Bearbeiten</button>
          <form class="inline-form" hx-delete="/api/recurring/{{ r.id }}" hx-swap="none"
                hx-confirm="„{{ r.name }}“ wirklich löschen?"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <button type="submit">Löschen</button>
          </form>
        </td>
      </tr>
      <tr id="rec-edit-{{ r.id }}" hidden>
        <td colspan="8">
          <form hx-ext="json-form" hx-patch="/api/recurring/{{ r.id }}" hx-swap="none"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <label>Name <input type="text" name="name" value="{{ r.name }}" required></label>
            <label>Betrag <input type="text" name="amount" data-type="amount" value="{{ r.amount|eur }}" required></label>
            <label>Rhythmus
              <select name="rhythm" data-type="str">
                {% for rh in rhythms %}<option value="{{ rh }}" {% if rh == r.rhythm %}selected{% endif %}>{{ rh|de_label }}</option>{% endfor %}
              </select>
            </label>
            <label>Fälligkeitstag <input type="number" name="due_day" data-type="int" min="1" max="31" value="{{ r.due_day }}" required></label>
            <label>Start <input type="date" name="start_date" value="{{ r.start_date.isoformat() if r.start_date else '' }}"></label>
            <label>Ende <input type="date" name="end_date" value="{{ r.end_date.isoformat() if r.end_date else '' }}"></label>
            <label>Kategorie
              <select name="category_id" data-type="int">
                <option value="">–</option>
                {% for c in categories %}<option value="{{ c.id }}" {% if c.id == r.category_id %}selected{% endif %}>{{ c.name }}</option>{% endfor %}
              </select>
            </label>
            <button type="submit">Speichern</button>
            <button type="button" onclick="toggleEdit('rec', {{ r.id }}, false)">Abbrechen</button>
          </form>
        </td>
      </tr>
      {% else %}
      <tr><td colspan="8">Noch keine wiederkehrenden Posten.</td></tr>
      {% endfor %}
    </tbody>
  </table>

  <fieldset>
    <legend>Neuen wiederkehrenden Posten anlegen</legend>
    <form hx-ext="json-form" hx-post="/api/recurring" hx-swap="none"
          hx-on::after-request="if(event.detail.successful){window.location.reload()}">
      <label>Name <input type="text" name="name" required></label>
      <label>Betrag <input type="text" name="amount" data-type="amount" placeholder="-49,99" required></label>
      <label>Rhythmus
        <select name="rhythm" data-type="str">
          {% for rh in rhythms %}<option value="{{ rh }}">{{ rh|de_label }}</option>{% endfor %}
        </select>
      </label>
      <label>Fälligkeitstag <input type="number" name="due_day" data-type="int" min="1" max="31" required></label>
      <label>Start (optional) <input type="date" name="start_date"></label>
      <label>Ende (optional) <input type="date" name="end_date"></label>
      <label>Kategorie
        <select name="category_id" data-type="int">
          <option value="">–</option>
          {% for c in categories %}<option value="{{ c.id }}">{{ c.name }}</option>{% endfor %}
        </select>
      </label>
      <button type="submit">Anlegen</button>
    </form>
  </fieldset>

  <fieldset>
    <legend>Vorschläge aus Buchungen</legend>
    {% if suggestions %}
    <table>
      <thead>
        <tr><th>Name</th><th>Betrag</th><th>Rhythmus</th><th>Fälligkeitstag</th><th>Start</th><th></th></tr>
      </thead>
      <tbody>
        {% for s in suggestions %}
        <tr>
          <td>{{ s.name }}</td>
          <td class="{{ 'neg' if s.amount < 0 else '' }}">
            {{ s.amount|eur }} €
            {% if s.hinweis %}<span class="muted">{{ s.hinweis }}</span>{% endif %}
          </td>
          <td>{{ s.rhythm|de_label }}</td>
          <td>{{ s.due_day }}</td>
          <td>{{ s.start_date.strftime('%d.%m.%Y') if s.start_date else '–' }}</td>
          <td>
            <form class="inline-form" hx-ext="json-form" hx-post="/api/recurring" hx-swap="none"
                  hx-on::after-request="if(event.detail.successful){window.location.reload()}">
              <input type="hidden" name="name" value="{{ s.name }}">
              <input type="hidden" name="amount" value="{{ s.amount }}">
              <input type="hidden" name="rhythm" value="{{ s.rhythm }}">
              <input type="hidden" name="due_day" data-type="int" value="{{ s.due_day }}">
              <input type="hidden" name="category_id" data-type="int" value="{{ s.category_id if s.category_id is not none else '' }}">
              <input type="hidden" name="start_date" value="{{ s.start_date.isoformat() if s.start_date else '' }}">
              <button type="submit">Vorschlag übernehmen</button>
            </form>
          </td>
        </tr>
        {% endfor %}
      </tbody>
    </table>
    {% else %}
    <p class="muted">Keine Vorschläge.</p>
    {% endif %}
    <p class="muted">Erkannt werden monatliche, vierteljährliche und jährliche Serien; Betrag = jeweils letzte Buchung.</p>
  </fieldset>
</section>

<section class="planning-section">
  <h2>Einmalposten</h2>
  <table>
    <thead>
      <tr><th>Name</th><th>Betrag</th><th>Fällig am</th><th>Kategorie</th><th></th></tr>
    </thead>
    <tbody>
      {% for p in planned %}
      <tr id="pln-row-{{ p.id }}">
        <td>{{ p.name }}</td>
        <td class="{{ 'neg' if p.amount < 0 else '' }}">{{ p.amount|eur }} €</td>
        <td>{{ p.due.strftime('%d.%m.%Y') }}</td>
        <td>{{ category_names.get(p.category_id, '–') }}</td>
        <td>
          <button type="button" onclick="toggleEdit('pln', {{ p.id }}, true)">Bearbeiten</button>
          <form class="inline-form" hx-delete="/api/planned/{{ p.id }}" hx-swap="none"
                hx-confirm="„{{ p.name }}“ wirklich löschen?"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <button type="submit">Löschen</button>
          </form>
        </td>
      </tr>
      <tr id="pln-edit-{{ p.id }}" hidden>
        <td colspan="5">
          <form hx-ext="json-form" hx-patch="/api/planned/{{ p.id }}" hx-swap="none"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <label>Name <input type="text" name="name" value="{{ p.name }}" required></label>
            <label>Betrag <input type="text" name="amount" data-type="amount" value="{{ p.amount|eur }}" required></label>
            <label>Fällig am <input type="date" name="due" value="{{ p.due.isoformat() }}" required></label>
            <label>Kategorie
              <select name="category_id" data-type="int">
                <option value="">–</option>
                {% for c in categories %}<option value="{{ c.id }}" {% if c.id == p.category_id %}selected{% endif %}>{{ c.name }}</option>{% endfor %}
              </select>
            </label>
            <button type="submit">Speichern</button>
            <button type="button" onclick="toggleEdit('pln', {{ p.id }}, false)">Abbrechen</button>
          </form>
        </td>
      </tr>
      {% else %}
      <tr><td colspan="5">Noch keine Einmalposten.</td></tr>
      {% endfor %}
    </tbody>
  </table>

  <fieldset>
    <legend>Neuen Einmalposten anlegen</legend>
    <form hx-ext="json-form" hx-post="/api/planned" hx-swap="none"
          hx-on::after-request="if(event.detail.successful){window.location.reload()}">
      <label>Name <input type="text" name="name" required></label>
      <label>Betrag <input type="text" name="amount" data-type="amount" placeholder="-2000,00" required></label>
      <label>Fällig am <input type="date" name="due" required></label>
      <label>Kategorie
        <select name="category_id" data-type="int">
          <option value="">–</option>
          {% for c in categories %}<option value="{{ c.id }}">{{ c.name }}</option>{% endfor %}
        </select>
      </label>
      <button type="submit">Anlegen</button>
    </form>
  </fieldset>
</section>

<section class="planning-section">
  <h2>Kredite</h2>
  <table>
    <thead>
      <tr><th>Name</th><th>Summe</th><th>Zins p.a.</th><th>Laufzeit</th><th>Auszahlung</th><th>Tilgungsart</th><th></th></tr>
    </thead>
    <tbody>
      {% for l in loans %}
      <tr id="loan-row-{{ l.id }}">
        <td>{{ l.name }}</td>
        <td>{{ l.principal|eur }} €</td>
        <td>{{ l.annual_rate_pct|eur }} %</td>
        <td>{{ l.term_months }} Monate</td>
        <td>{{ l.payout_date.strftime('%d.%m.%Y') }}</td>
        <td>{{ l.repayment_type|de_label }}</td>
        <td>
          <button type="button" onclick="toggleEdit('loan', {{ l.id }}, true)">Bearbeiten</button>
          <form class="inline-form" hx-delete="/api/loans/{{ l.id }}" hx-swap="none"
                hx-confirm="„{{ l.name }}“ wirklich löschen?"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <button type="submit">Löschen</button>
          </form>
        </td>
      </tr>
      <!-- Hinweis: eine Kredit-Aenderung veraendert den Tilgungsplan; danach
           muessen betroffene Szenarien neu durchgerechnet werden. -->
      <tr id="loan-edit-{{ l.id }}" hidden>
        <td colspan="7">
          <form hx-ext="json-form" hx-patch="/api/loans/{{ l.id }}" hx-swap="none"
                hx-on::after-request="if(event.detail.successful){window.location.reload()}">
            <label>Name <input type="text" name="name" value="{{ l.name }}" required></label>
            <label>Darlehenssumme <input type="text" name="principal" data-type="amount" value="{{ l.principal|eur }}" required></label>
            <label>Zins p.a. (%) <input type="text" name="annual_rate_pct" data-type="amount" value="{{ l.annual_rate_pct|eur }}" required></label>
            <label>Laufzeit (Monate) <input type="number" name="term_months" data-type="int" min="1" value="{{ l.term_months }}" required></label>
            <label>Auszahlungsdatum <input type="date" name="payout_date" value="{{ l.payout_date.isoformat() }}" required></label>
            <label>Tilgungsart
              <select name="repayment_type" data-type="str">
                {% for rt in repayment_types %}<option value="{{ rt }}" {% if rt == l.repayment_type %}selected{% endif %}>{{ rt|de_label }}</option>{% endfor %}
              </select>
            </label>
            <button type="submit">Speichern</button>
            <button type="button" onclick="toggleEdit('loan', {{ l.id }}, false)">Abbrechen</button>
          </form>
        </td>
      </tr>
      <tr>
        <td colspan="7">
          <details ontoggle="if(this.open){loadLoanSchedule({{ l.id }})}">
            <summary>Tilgungsplan</summary>
            <div id="schedule-{{ l.id }}">Wird beim Öffnen geladen…</div>
          </details>
        </td>
      </tr>
      {% else %}
      <tr><td colspan="7">Noch keine Kredite.</td></tr>
      {% endfor %}
    </tbody>
  </table>

  <fieldset>
    <legend>Neuen Kredit anlegen</legend>
    <form hx-ext="json-form" hx-post="/api/loans" hx-swap="none"
          hx-on::after-request="if(event.detail.successful){window.location.reload()}">
      <label>Name <input type="text" name="name" required></label>
      <label>Darlehenssumme <input type="text" name="principal" data-type="amount" placeholder="10000,00" required></label>
      <label>Zins p.a. (%) <input type="text" name="annual_rate_pct" data-type="amount" placeholder="4,5" required></label>
      <label>Laufzeit (Monate) <input type="number" name="term_months" data-type="int" min="1" required></label>
      <label>Auszahlungsdatum <input type="date" name="payout_date" required></label>
      <label>Tilgungsart
        <select name="repayment_type" data-type="str">
          {% for rt in repayment_types %}<option value="{{ rt }}">{{ rt|de_label }}</option>{% endfor %}
        </select>
      </label>
      <button type="submit">Anlegen</button>
    </form>
  </fieldset>
</section>

<script>
  // json-form-Extension ist zentral in base.html registriert (eine
  // Definition fuer alle Templates, inkl. data-type="bool"-Handling).
  // toggleEdit ist ebenfalls zentral in base.html definiert (wird auf
  // mehreren Seiten fuer Inline-Edit-Formulare gebraucht).

  var loadedSchedules = {};
  function formatIsoDate(iso) {
    var parts = iso.split('-');
    return parts[2] + '.' + parts[1] + '.' + parts[0];
  }
  function fmtEur(n) {
    return Number(n).toLocaleString('de-DE', {minimumFractionDigits: 2, maximumFractionDigits: 2});
  }
  function loadLoanSchedule(loanId) {
    if (loadedSchedules[loanId]) return;
    loadedSchedules[loanId] = true;
    fetch('/api/loans/' + loanId + '/schedule')
      .then(function (r) { return r.json(); })
      .then(function (rows) {
        var html = '<table><thead><tr><th>Fällig</th><th>Rate</th><th>Zins</th>'
          + '<th>Tilgung</th><th>Restschuld</th></tr></thead><tbody>';
        rows.forEach(function (r) {
          html += '<tr><td>' + formatIsoDate(r.due) + '</td>'
            + '<td>' + fmtEur(r.payment) + ' €</td>'
            + '<td>' + fmtEur(r.interest) + ' €</td>'
            + '<td>' + fmtEur(r.principal) + ' €</td>'
            + '<td>' + fmtEur(r.remaining) + ' €</td></tr>';
        });
        html += '</tbody></table>';
        document.getElementById('schedule-' + loanId).innerHTML = html;
      });
  }
</script>
{% endblock %}