{{define "content"}}
{{$d := .}}
<h1 style="margin-bottom:24px;">Monthly Reports</h1>

<div class="card animate-on-scroll">
  <h2>12-Month Spend by Category</h2>
  <div style="padding-top:8px;">
    <canvas id="reportChart" height="280"></canvas>
  </div>
</div>

<div class="card animate-on-scroll" style="overflow-x:auto;">
  <h2 style="margin-bottom:14px;">Breakdown by Month</h2>
  <div class="table-wrap">
    <table>
      <thead>
        <tr>
          <th>Month</th>
          {{range $cat, $_ := $d.CategoryNames}}
          {{$color := index $d.CategoryColors $cat}}
          <th class="text-right" style="white-space:nowrap;">
            {{if $color}}<span style="display:inline-block;width:7px;height:7px;border-radius:50%;background:{{$color}};margin-right:4px;vertical-align:middle;box-shadow:0 0 4px {{$color}}88;"></span>{{end}}{{$cat}}
          </th>
          {{end}}
          <th class="text-right">Total</th>
        </tr>
      </thead>
      <tbody>
        {{range $row := $d.MonthlyData}}
        {{$total := sub 0 0}}
        {{range $_, $v := $row.Totals}}{{$total = add $total $v}}{{end}}
        <tr>
          <td style="font-weight:600; white-space:nowrap;">{{$row.Month}}</td>
          {{range $cat, $_ := $d.CategoryNames}}
          {{$v := index $row.Totals $cat}}
          <td class="cents">
            {{if $v}}<span class="{{if lt $v 0}}negative{{else}}positive{{end}}">€{{cents $v}}</span>{{else}}<span class="text-muted">—</span>{{end}}
          </td>
          {{end}}
          <td class="cents" style="font-weight:600;">
            <span class="{{if lt $total 0}}negative{{else}}positive{{end}}">€{{cents $total}}</span>
          </td>
        </tr>
        {{end}}
      </tbody>
    </table>
  </div>
</div>

<script>
const isDark = () => document.documentElement.getAttribute('data-theme') === 'dark';
const gridC  = () => isDark() ? 'rgba(255,255,255,0.05)' : 'rgba(0,0,0,0.06)';
const textC  = () => isDark() ? '#5c6585' : '#8a92b0';

new Chart(document.getElementById('reportChart'), {
  type: 'bar',
  data: {
    labels: [{{range $d.MonthlyData}}"{{.Month}}",{{end}}],
    datasets: [
      {{$colors := $d.CategoryColors}}
      {{range $cat, $_ := $d.CategoryNames}}
      {
        label: '{{$cat}}',
        data: [{{range $d.MonthlyData}}{{$v := index .Totals $cat}}{{if $v}}{{abs $v | div 100}}{{else}}0{{end}},{{end}}],
        backgroundColor: '{{index $colors $cat}}cc',
        borderColor: '{{index $colors $cat}}',
        borderWidth: 0,
        borderRadius: 3,
      },
      {{end}}
    ]
  },
  options: {
    responsive: true,
    animation: { duration: 900, easing: 'easeOutQuart' },
    plugins: {
      legend: { position: 'bottom', labels: { boxWidth: 11, padding: 14, color: textC(), usePointStyle: true, pointStyle: 'circle' } },
      tooltip: { mode: 'index', intersect: false }
    },
    scales: {
      x: { stacked: true, grid: { display: false }, ticks: { color: textC() } },
      y: { stacked: true, beginAtZero: true, grid: { color: gridC() }, ticks: { color: textC(), callback: v => '€' + v } }
    }
  }
});
</script>
{{end}}