{% extends "base.html" %}
{% block content %}
<div class="page-header">
  <h1>Review Transactions</h1>
  {% if remaining %}<span class="badge">{{ remaining }} remaining</span>{% endif %}
</div>

{% if remaining %}
<div style="background:var(--warm-white);border:1px solid var(--border);border-radius:var(--radius);padding:0.85rem 1.25rem;margin-bottom:1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;">
  <span style="font-size:0.88rem;color:var(--text-mid);">Need to bulk-clear old transactions?</span>
  <form method="POST" action="{{ url_for('bulk_ignore_before') }}" onsubmit="return confirm('Ignore all unreviewed transactions before this date?')">
    <div style="display:flex;align-items:center;gap:0.5rem;">
      <label style="font-size:0.85rem;">Ignore everything before</label>
      <input type="date" name="before_date" required class="budget-input" style="width:150px;">
      <button type="submit" class="btn btn-ghost" style="color:var(--text-light);font-size:0.85rem;">Bulk ignore</button>
    </div>
  </form>
</div>
{% endif %}

{% if not transaction %}
<div class="empty-state card-wide">
  <div class="empty-icon">✓</div>
  <h2>All caught up!</h2>
  <p>Every transaction has been reviewed.</p>
  <a href="{{ url_for('transactions_view') }}" class="btn btn-primary">View All Transactions</a>
</div>
{% else %}

<div class="review-card">
  <div class="review-meta">
    <span class="review-date">{{ transaction.date }}</span>
    <span class="review-account">{{ transaction.account }}</span>
  </div>
  <div class="review-description">{{ transaction.description }}</div>
  <div class="review-amount">${{ transaction.amount | money }}</div>

  {% if bnpl_lender and bnpl_matches %}
  <div style="background:#f0f5ff;border:1.5px solid #b0c4ef;border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:1rem;">
    <div style="font-weight:600;margin-bottom:0.5rem;">💳 Looks like a {{ bnpl_lender | title }} payment — which loan is this?</div>
    <div style="display:flex;flex-direction:column;gap:0.5rem;">
      {% for loan in bnpl_matches %}
      <form method="POST" action="{{ url_for('match_bnpl') }}">
        <input type="hidden" name="txn_id" value="{{ transaction.id }}">
        <input type="hidden" name="debt_id" value="{{ loan.id }}">
        <input type="hidden" name="category" value="Debt">
        <button type="submit" style="width:100%;text-align:left;background:{% if loan.amount_match %}#e8f0fe{% else %}#fff{% endif %};border:1px solid {% if loan.amount_match %}#7aacf0{% else %}var(--border){% endif %};border-radius:6px;padding:0.6rem 0.85rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:1rem;">
          <span>
            <strong>{{ loan.name }}</strong>
            <span style="font-size:0.78rem;color:var(--text-light);margin-left:0.5rem;">{{ loan.payments_made }}/{{ loan.total_payments }} payments made</span>
          </span>
          <span style="white-space:nowrap;">
            ${{ loan.payment_amount | money }}
            {% if loan.amount_match %}<span style="color:#5A9E68;font-size:0.78rem;margin-left:0.4rem;">✓ amount matches</span>{% endif %}
          </span>
        </button>
      </form>
      {% endfor %}
    </div>
    <div style="margin-top:0.6rem;font-size:0.8rem;color:var(--text-light);">Selecting a loan will mark one payment as made and categorize this as Debt. Or ignore this and categorize manually below.</div>
  </div>
  {% elif bnpl_lender %}
  <div style="background:#fff8e6;border:1px solid #e8d49a;border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:1rem;">
    <div style="font-weight:600;margin-bottom:0.25rem;">💳 Looks like a {{ bnpl_lender | title }} payment — no active loans found</div>
    <div style="font-size:0.83rem;color:var(--text-light);margin-bottom:0.75rem;">Want to set up this loan now so future payments get tracked automatically?</div>
    <button type="button" class="btn btn-ghost" style="font-size:0.85rem;" onclick="document.getElementById('bnpl-quick-add').style.display='block';this.style.display='none';">
      + Add {{ bnpl_lender | title }} loan now
    </button>
    <div id="bnpl-quick-add" style="display:none;margin-top:0.75rem;">
      <form method="POST" action="{{ url_for('bnpl_add') }}">
        <input type="hidden" name="bnpl_provider" value="{{ bnpl_lender | title }}">
        <input type="hidden" name="redirect_to" value="review">
        <div style="display:grid;grid-template-columns:1fr 1fr;gap:0.75rem;margin-bottom:0.75rem;">
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">What did you buy?</label>
            <input type="text" name="description" class="budget-input" style="width:100%;" placeholder="e.g. Nike Shoes" required>
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Merchant (optional)</label>
            <input type="text" name="merchant" class="budget-input" style="width:100%;" placeholder="e.g. Nike">
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Payment Amount</label>
            <input type="number" name="payment_amount" step="0.01" min="0" class="budget-input" style="width:100%;" value="{{ transaction.amount }}" required>
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Total # of Payments</label>
            <input type="number" name="total_payments" min="1" class="budget-input" style="width:100%;" placeholder="e.g. 4" required>
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Frequency</label>
            <select name="frequency" class="budget-input" style="width:100%;">
              <option value="biweekly">Every 2 weeks</option>
              <option value="monthly">Monthly</option>
              <option value="weekly">Weekly</option>
            </select>
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Next Payment Date</label>
            <input type="date" name="next_payment_date" class="budget-input" style="width:100%;">
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Who's it for?</label>
            <select name="owner" class="budget-input" style="width:100%;">
              <option value="Shared">Shared</option>
              <option value="Bonna">Bonna</option>
              <option value="Tony">Tony</option>
            </select>
          </div>
          <div>
            <label style="font-size:0.8rem;display:block;margin-bottom:0.2rem;">Payments already made</label>
            <input type="number" name="payments_made" min="0" value="1" class="budget-input" style="width:100%;">
          </div>
        </div>
        <div style="display:flex;gap:0.75rem;align-items:center;">
          <button type="submit" class="btn btn-primary">Save Loan & Continue</button>
          <button type="button" class="btn btn-ghost" onclick="document.getElementById('bnpl-quick-add').style.display='none';this.closest('div').previousElementSibling.style.display='inline-block';">Cancel</button>
          <span style="font-size:0.78rem;color:var(--text-light);">This transaction will still need to be categorized on the next screen</span>
        </div>
      </form>
    </div>
  </div>
  {% endif %}

  {% if suggestion %}
  <div class="suggestion-banner">
    <span>Suggested: <strong>{{ suggestion.category }}{% if suggestion.subcategory %} › {{ suggestion.subcategory }}{% endif %}</strong></span>
    <form method="POST" action="{{ url_for('categorize') }}" style="display:inline;">
      <input type="hidden" name="id" value="{{ transaction.id }}">
      <input type="hidden" name="category" value="{{ suggestion.category }}">
      <input type="hidden" name="subcategory" value="{{ suggestion.subcategory or '' }}">
      <button type="submit" class="btn btn-accept">Accept</button>
    </form>
  </div>
  {% endif %}

  <form method="POST" action="{{ url_for('categorize') }}" class="categorize-form">
    <input type="hidden" name="id" value="{{ transaction.id }}">

    <div class="form-group">
      <label>Category</label>
      <div class="category-grid">
        {% for cat, subcats in categories.items() %}
        <label class="cat-option" style="--cat-color: {{ colors.get(cat, '#ddd') }};">
          <input type="radio" name="category" value="{{ cat }}"
            {% if suggestion and suggestion.category == cat %}checked{% endif %}
            onchange="updateSubcats(this.value)">
          <span>{{ cat }}</span>
        </label>
        {% endfor %}
      </div>
    </div>

    <div class="form-group" id="subcat-group">
      <label>Subcategory <span class="optional">(optional)</span></label>
      <select name="subcategory" id="subcat-select">
        <option value="">— none —</option>
      </select>
    </div>

    <!-- Sinking fund picker — shown when Transfer > Sinking Fund is selected -->
    <div class="form-group" id="sinking-fund-prompt" style="display:none;">
      <label>Which fund? <span class="optional">(will auto-add to that fund's balance)</span></label>
      <select name="sinking_fund_name" id="sinking-fund-select" class="budget-input">
        <option value="">— select fund —</option>
        {% for f in sinking_funds %}
        <option value="{{ f.name }}">{{ f.name }} (current: ${{ (f.balance or 0) | money }})</option>
        {% endfor %}
      </select>
    </div>

    <!-- Car prompt — shown when Gas subcategory is selected -->
    <div class="form-group" id="car-prompt" style="display:none;">
      <label>Which car? <span class="optional">(will auto-log to that car's profile)</span></label>
      <select name="car_id" id="car-select">
        <option value="">— select car —</option>
        {% for car in personal_cars %}
        <option value="{{ car.id }}">{{ car.display_name }}</option>
        {% endfor %}
      </select>
    </div>

    <div class="form-group">
      <label>Notes <span class="optional">(optional)</span></label>
      <input type="text" name="notes" placeholder="e.g. Costco run, birthday gift...">
    </div>

    <div class="form-group checkbox-group">
      <label>
        <input type="checkbox" name="remember" checked>
        Remember this for future transactions from this merchant
      </label>
    </div>

    <div class="form-actions">
      <button type="submit" class="btn btn-primary">Save & Next</button>
      <button type="button" class="btn btn-ghost" onclick="toggleSplit()">Split transaction</button>
    </div>
  </form>

  <!-- Quick-action buttons — must be outside the main form -->
  <div style="display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.75rem;">
    <form method="POST" action="{{ url_for('ignore_transaction') }}">
      <input type="hidden" name="id" value="{{ transaction.id }}">
      <button type="submit" class="btn btn-ghost" style="color:var(--text-light);font-size:0.82rem;"
        title="Marks as reviewed but excludes from all totals — use for bill payments, debt payments, income deposits">
        ✓ Already tracked — ignore
      </button>
    </form>
    <button type="button" class="btn btn-ghost" style="background:#e8f5e9;color:#3a7d44;border:1px solid #a5d6a7;font-size:0.82rem;" onclick="document.getElementById('review-sinking-picker').style.display='block';this.style.display='none';">🏦 Sinking Fund Transfer</button>
    <div id="review-sinking-picker" style="display:none;background:#e8f5e9;border:1px solid #a5d6a7;border-radius:var(--radius);padding:0.75rem 1rem;width:100%;">
      <form method="POST" action="{{ url_for('categorize_sinking_transfer') }}">
        <input type="hidden" name="id" value="{{ transaction.id }}">
        <input type="hidden" name="redirect" value="review">
        <label style="font-size:0.82rem;font-weight:600;display:block;margin-bottom:0.4rem;">Which sinking fund?</label>
        <div style="display:flex;gap:0.5rem;align-items:center;flex-wrap:wrap;">
          <select name="sinking_fund_name" class="budget-input" style="min-width:180px;" required>
            <option value="">— select fund —</option>
            {% for f in sinking_funds %}
            <option value="{{ f.name }}">{{ f.name }} (${{ (f.balance or 0) | money }})</option>
            {% endfor %}
          </select>
          <button type="submit" class="btn btn-primary" style="font-size:0.82rem;">Save & Next</button>
          <button type="button" class="btn btn-ghost" style="font-size:0.82rem;" onclick="document.getElementById('review-sinking-picker').style.display='none';this.closest('div').previousElementSibling.style.display='inline-block';">Cancel</button>
        </div>
      </form>
    </div>
    <form method="POST" action="{{ url_for('ignore_transaction') }}">
      <input type="hidden" name="id" value="{{ transaction.id }}">
      <input type="hidden" name="label" value="Investment Transfer">
      <button type="submit" class="btn btn-ghost" style="background:#e3f2fd;color:#1565c0;border:1px solid #90caf9;font-size:0.82rem;">📈 Investment Transfer</button>
    </form>
    <form method="POST" action="{{ url_for('ignore_transaction') }}">
      <input type="hidden" name="id" value="{{ transaction.id }}">
      <input type="hidden" name="label" value="Savings Transfer">
      <button type="submit" class="btn btn-ghost" style="background:#f3e5f5;color:#6a1b9a;border:1px solid #ce93d8;font-size:0.82rem;">💰 Savings Transfer</button>
    </form>
    <form method="POST" action="{{ url_for('skip') }}">
      <input type="hidden" name="id" value="{{ transaction.id }}">
      <button type="submit" class="btn btn-ghost" style="font-size:0.82rem;">Skip for now</button>
    </form>
  </div>

  <!-- Split transaction form -->
  <div id="split-panel" style="display:none;margin-top:1.5rem;">
    <div class="budget-section">
      <div class="budget-section-header" style="border-left-color:#D4A96A;">
        <h3>Split Transaction — ${{ transaction.amount | money }} total</h3>
      </div>
      <p class="muted" style="margin-bottom:1rem;font-size:0.85rem;">Divide this charge across multiple categories. Amounts must add up to ${{ transaction.amount | money }}.</p>
      <form method="POST" action="{{ url_for('split_transaction') }}">
        <input type="hidden" name="id" value="{{ transaction.id }}">
        <table class="budget-table" id="split-table">
          <thead><tr><th>Category</th><th>Subcategory</th><th>Amount</th><th>Note</th><th></th></tr></thead>
          <tbody id="split-rows">
            <tr class="split-row">
              <td>
                <select name="split_cat_0" class="budget-input split-cat" onchange="updateSplitSubcat(this, 0)" style="width:130px;">
                  <option value="">— pick —</option>
                  {% for cat in categories %}<option value="{{ cat }}">{{ cat }}</option>{% endfor %}
                </select>
              </td>
              <td><select name="split_subcat_0" class="budget-input split-subcat" style="width:130px;"><option value="">— none —</option></select></td>
              <td><input type="number" name="split_amt_0" step="0.01" min="0" class="budget-input split-amt" style="width:90px;" placeholder="0.00" oninput="updateRemaining()"></td>
              <td><input type="text" name="split_note_0" class="budget-input" style="width:110px;" placeholder="optional"></td>
              <td></td>
            </tr>
            <tr class="split-row">
              <td>
                <select name="split_cat_1" class="budget-input split-cat" onchange="updateSplitSubcat(this, 1)" style="width:130px;">
                  <option value="">— pick —</option>
                  {% for cat in categories %}<option value="{{ cat }}">{{ cat }}</option>{% endfor %}
                </select>
              </td>
              <td><select name="split_subcat_1" class="budget-input split-subcat" style="width:130px;"><option value="">— none —</option></select></td>
              <td><input type="number" name="split_amt_1" step="0.01" min="0" class="budget-input split-amt" style="width:90px;" placeholder="0.00" oninput="updateRemaining()"></td>
              <td><input type="text" name="split_note_1" class="budget-input" style="width:110px;" placeholder="optional"></td>
              <td></td>
            </tr>
          </tbody>
        </table>
        <div style="margin:0.75rem 0;font-size:0.85rem;">
          Remaining: <strong id="split-remaining">${{ transaction.amount | money }}</strong>
          <button type="button" class="btn btn-ghost" style="margin-left:1rem;font-size:0.78rem;" onclick="addSplitRow()">+ Add row</button>
        </div>
        <div style="display:flex;gap:0.75rem;">
          <button type="submit" class="btn btn-primary">Save Split & Next</button>
          <button type="button" class="btn btn-ghost" onclick="toggleSplit()">Cancel</button>
        </div>
      </form>
    </div>
  </div>
</div>

<script>
const subcats = {{ categories | tojson }};
const suggestion = {{ suggestion | tojson if suggestion else 'null' }};

function updateSubcats(cat) {
  const select = document.getElementById('subcat-select');
  const group = document.getElementById('subcat-group');
  const list = subcats[cat] || [];
  select.innerHTML = '<option value="">— none —</option>';
  list.forEach(s => {
    const opt = document.createElement('option');
    opt.value = s;
    opt.textContent = s;
    if (suggestion && suggestion.subcategory === s) opt.selected = true;
    select.appendChild(opt);
  });
  group.style.display = list.length ? 'block' : 'none';
  checkCarPrompt(cat, select.value);
}

function checkCarPrompt(cat, subcat) {
  const carPrompt = document.getElementById('car-prompt');
  if (cat === 'Car' && subcat === 'Gas') {
    carPrompt.style.display = 'block';
  } else {
    carPrompt.style.display = 'none';
    document.getElementById('car-select').value = '';
  }

  const sinkingPrompt = document.getElementById('sinking-fund-prompt');
  if (cat === 'Transfer' && subcat === 'Sinking Fund') {
    sinkingPrompt.style.display = 'block';
  } else {
    sinkingPrompt.style.display = 'none';
    document.getElementById('sinking-fund-select').value = '';
  }
}

document.getElementById('subcat-select').addEventListener('change', function() {
  const cat = document.querySelector('input[name="category"]:checked');
  checkCarPrompt(cat ? cat.value : '', this.value);
});

// Initialize on load
const checked = document.querySelector('input[name="category"]:checked');
if (checked) updateSubcats(checked.value);
document.querySelectorAll('input[name="category"]').forEach(r => {
  r.addEventListener('change', () => updateSubcats(r.value));
});

// Split transaction
const totalAmount = {{ transaction.amount }};
const allSubcats = {{ categories | tojson }};
let splitRowCount = 2;

function toggleSplit() {
  const panel = document.getElementById('split-panel');
  panel.style.display = panel.style.display === 'none' ? 'block' : 'none';
}

function updateSplitSubcat(selectEl, idx) {
  const cat = selectEl.value;
  const subcatSel = document.querySelector(`select[name="split_subcat_${idx}"]`);
  const list = allSubcats[cat] || [];
  subcatSel.innerHTML = '<option value="">— none —</option>';
  list.forEach(s => {
    const opt = document.createElement('option');
    opt.value = s; opt.textContent = s;
    subcatSel.appendChild(opt);
  });
}

function updateRemaining() {
  const inputs = document.querySelectorAll('.split-amt');
  let used = 0;
  inputs.forEach(el => used += parseFloat(el.value) || 0);
  const remaining = Math.round((totalAmount - used) * 100) / 100;
  const el = document.getElementById('split-remaining');
  el.textContent = '$' + remaining.toFixed(2);
  el.style.color = Math.abs(remaining) < 0.01 ? '#5A9E68' : (remaining < 0 ? '#c07070' : 'inherit');
}

function addSplitRow() {
  const idx = splitRowCount++;
  const tbody = document.getElementById('split-rows');
  const row = document.createElement('tr');
  row.className = 'split-row';
  row.innerHTML = `
    <td><select name="split_cat_${idx}" class="budget-input split-cat" onchange="updateSplitSubcat(this,${idx})" style="width:130px;">
      <option value="">— pick —</option>
      ${Object.keys(allSubcats).map(c => `<option value="${c}">${c}</option>`).join('')}
    </select></td>
    <td><select name="split_subcat_${idx}" class="budget-input split-subcat" style="width:130px;"><option value="">— none —</option></select></td>
    <td><input type="number" name="split_amt_${idx}" step="0.01" min="0" class="budget-input split-amt" style="width:90px;" placeholder="0.00" oninput="updateRemaining()"></td>
    <td><input type="text" name="split_note_${idx}" class="budget-input" style="width:110px;" placeholder="optional"></td>
    <td><button type="button" onclick="this.closest('tr').remove();updateRemaining();" style="background:none;border:none;color:#c07070;cursor:pointer;font-size:1rem;">✕</button></td>
  `;
  tbody.appendChild(row);
}
</script>
{% endif %}
{% endblock %}