{{define "title"}}Analytics · git-pkgs proxy{{end}}

{{define "head"}}
<style>
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     against it rather than flipped. Validated for CVD separation and
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  .donut-slice {
    transition: opacity 120ms ease-out;
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  .legend-row.is-active { background-color: rgb(243 244 246); }
  .dark .legend-row.is-active { background-color: rgb(31 41 55); }
</style>
{{end}}

{{define "content"}}
<div class="mb-8">
    <h1 class="text-2xl font-semibold">Analytics</h1>
    <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
        Accumulated download volume and cache composition across
        {{.Totals.Ecosystems}} ecosystem{{if ne .Totals.Ecosystems 1}}s{{end}}.
    </p>
</div>

{{if .StatsStale}}
<div role="status"
     class="mb-8 rounded-xl border border-amber-300 bg-amber-50 px-4 py-3 text-sm text-amber-900 dark:border-amber-500/40 dark:bg-amber-500/10 dark:text-amber-200">
    <span class="font-medium">Figures may be out of date.</span>
    The database query is failing, so the download and cache numbers below are
    the last snapshot that could be read{{if .StatsAge}}, from {{.StatsAge}}{{end}}.
    Check the proxy logs.
</div>
{{end}}

<div class="bg-white dark:bg-gray-900 rounded-xl shadow-sm border border-gray-200 dark:border-gray-800 mb-4">
    <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-800">
        <h2 class="text-lg font-semibold">Download size by ecosystem</h2>
        <p class="text-sm text-gray-500 dark:text-gray-400 mt-0.5">Bytes served from cache</p>
    </div>
    {{if .Donut.HasSlices}}
    <div class="p-6 flex flex-col lg:flex-row items-center gap-8">
        <div class="relative shrink-0 w-full max-w-[320px]">
            <svg class="donut w-full h-auto -rotate-90" viewBox="0 0 {{.Donut.Size}} {{.Donut.Size}}" role="img"
                 aria-label="Accumulated download size by ecosystem, {{.Donut.CenterValue}} in total">
                {{range .Donut.Slices}}
                <circle class="donut-slice donut-slot-{{.Index}}"
                        data-slice="{{.Index}}"
                        data-label="{{.Label}}"
                        data-value="{{.Value}}"
                        data-share="{{.SharePct}}"
                        data-downloads="{{.Downloads}}"
                        data-cache="{{.CacheSize}}"
                        data-members="{{.Members}}"
                        cx="{{$.Donut.Center}}" cy="{{$.Donut.Center}}" r="{{$.Donut.Radius}}"
                        fill="none"
                        stroke-width="{{$.Donut.Stroke}}"
                        stroke-dasharray="{{.Dash}} {{.Gap}}"
                        stroke-dashoffset="{{.Offset}}">
                    <title>{{.Label}}: {{.Value}} ({{.SharePct}}%)</title>
                </circle>
                {{end}}
            </svg>
            <div class="absolute inset-0 flex flex-col items-center justify-center pointer-events-none text-center px-10">
                <div class="text-4xl sm:text-5xl font-semibold tracking-tight">{{.Donut.CenterValue}}</div>
                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400 leading-tight">{{.Donut.CenterLabel}}</div>
            </div>
        </div>

        <!-- Legend: identity never rests on colour alone -->
        <ul class="w-full flex-1 space-y-1">
            {{range .Donut.Slices}}
            <li class="legend-row flex items-center gap-3 rounded-lg px-3 py-2 transition-colors"
                data-slice="{{.Index}}"
                data-label="{{.Label}}"
                data-value="{{.Value}}"
                data-share="{{.SharePct}}"
                data-downloads="{{.Downloads}}"
                data-cache="{{.CacheSize}}"
                data-members="{{.Members}}">
                <span class="swatch-{{.Index}} h-3 w-3 shrink-0 rounded-sm"></span>
                <span class="min-w-0 flex-1 truncate text-sm font-medium">
                    {{.Label}}
                    {{- if .IsOther}}<span class="ml-1 font-normal text-gray-500 dark:text-gray-400">({{.Members}})</span>{{end}}
                </span>
                <span class="shrink-0 text-sm tabular-nums">{{.Value}}</span>
                <span class="w-14 shrink-0 text-right text-sm tabular-nums text-gray-500 dark:text-gray-400">{{.SharePct}}%</span>
            </li>
            {{end}}
        </ul>
    </div>
    {{else if .StatsFailed}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">
        Download figures are unavailable — the database query failed. Check the proxy logs.
    </div>
    {{else}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">Nothing has been served from cache yet</div>
    {{end}}
</div>

<!-- Cache figures, carried over from the dashboard -->
<div class="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-6 gap-4 mb-8">
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Downloads</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.Downloads}}</div>
    </div>
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Cache size</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.CacheSize}}</div>
    </div>
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Cached artifacts</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.CachedArtifacts}}</div>
    </div>
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Packages</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.Packages}}</div>
    </div>
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Versions</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.Versions}}</div>
    </div>
    <div class="bg-white dark:bg-gray-900 rounded-xl p-5 shadow-sm border border-gray-200 dark:border-gray-800">
        <div class="text-sm text-gray-500 dark:text-gray-400">Ecosystems in use</div>
        <div class="text-2xl font-semibold mt-1">{{.Totals.ActiveEcosystems}}<span class="text-base font-normal text-gray-400 dark:text-gray-500"> / {{.Totals.Ecosystems}}</span></div>
    </div>
</div>

{{if .Totals.Amplification}}
<p class="-mt-4 mb-8 text-sm text-gray-500 dark:text-gray-400">
    The cache has served {{.Totals.Amplification}} the bytes it currently stores.
</p>
{{end}}

<!-- Table view: every figure the ring folds away -->
<div class="bg-white dark:bg-gray-900 rounded-xl shadow-sm border border-gray-200 dark:border-gray-800 mb-8 overflow-hidden">
    <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-800">
        <h2 class="text-lg font-semibold">Per-ecosystem breakdown</h2>
        <p class="text-sm text-gray-500 dark:text-gray-400 mt-0.5">Every ecosystem, including any folded into the ring's "Other" slice</p>
    </div>
    {{if .Ecosystems}}
    <div class="overflow-x-auto">
        <table class="w-full text-sm">
            <thead class="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400 border-b border-gray-200 dark:border-gray-800">
                <tr>
                    <th scope="col" class="px-6 py-3 text-left font-medium">Ecosystem</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Downloaded</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Share</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Downloads</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Cache size</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Artifacts</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Avg size</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Packages</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Versions</th>
                </tr>
            </thead>
            <tbody class="divide-y divide-gray-200 dark:divide-gray-800">
                {{range .Ecosystems}}
                <tr class="hover:bg-gray-50 dark:hover:bg-gray-800/50">
                    <th scope="row" class="px-6 py-3 text-left font-normal">
                        <a href="/ui/packages?ecosystem={{.Ecosystem}}&sort=hits" class="hover:opacity-80">{{template "ecosystem_badge" .Ecosystem}}</a>
                    </th>
                    <td class="px-6 py-3 text-right tabular-nums font-medium">{{.Downloaded}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.SharePct}}%</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.Downloads}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.CacheSize}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.Artifacts}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.AvgArtifactSize}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.Packages}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.Versions}}</td>
                </tr>
                {{end}}
            </tbody>
        </table>
    </div>
    {{else if .StatsFailed}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">
        The per-ecosystem query failed, so this table is unavailable. Check the proxy logs.
    </div>
    {{else}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">No packages cached yet</div>
    {{end}}
</div>

<!-- Metadata cache: stored apart from artifacts, so none of the figures above include it -->
<div class="bg-white dark:bg-gray-900 rounded-xl shadow-sm border border-gray-200 dark:border-gray-800 mb-8 overflow-hidden">
    <div class="px-6 py-4 border-b border-gray-200 dark:border-gray-800">
        <h2 class="text-lg font-semibold">Metadata cache</h2>
        <p class="text-sm text-gray-500 dark:text-gray-400 mt-0.5">
            Cached registry metadata, kept apart from artifacts: the download, cache size and
            artifact figures above do not include it.
            {{if not .Metadata.Enabled}}Metadata caching is off; set <code class="text-xs">cache_metadata</code> to enable it.{{end}}
        </p>
    </div>
    {{if .Metadata.Rows}}
    <div class="grid grid-cols-2 gap-4 px-6 py-4 border-b border-gray-200 dark:border-gray-800">
        <div>
            <div class="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400">Cached documents</div>
            <div class="text-xl font-semibold mt-1 tabular-nums">{{.Metadata.Entries}}</div>
        </div>
        <div>
            <div class="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400">Metadata size</div>
            <div class="text-xl font-semibold mt-1 tabular-nums">{{.Metadata.Size}}</div>
        </div>
    </div>
    <div class="overflow-x-auto">
        <table class="w-full text-sm">
            <thead class="text-xs uppercase tracking-wide text-gray-500 dark:text-gray-400 border-b border-gray-200 dark:border-gray-800">
                <tr>
                    <th scope="col" class="px-6 py-3 text-left font-medium">Ecosystem</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Size</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Share</th>
                    <th scope="col" class="px-6 py-3 text-right font-medium">Documents</th>
                </tr>
            </thead>
            <tbody class="divide-y divide-gray-200 dark:divide-gray-800">
                {{range .Metadata.Rows}}
                <tr class="hover:bg-gray-50 dark:hover:bg-gray-800/50">
                    <th scope="row" class="px-6 py-3 text-left font-normal">{{template "ecosystem_badge" .Ecosystem}}</th>
                    <td class="px-6 py-3 text-right tabular-nums font-medium">{{.Size}}</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.SharePct}}%</td>
                    <td class="px-6 py-3 text-right tabular-nums text-gray-500 dark:text-gray-400">{{.Entries}}</td>
                </tr>
                {{end}}
            </tbody>
        </table>
    </div>
    {{else if .Metadata.Failed}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">
        The metadata cache query failed, so these figures are unavailable. Check the proxy logs.
    </div>
    {{else}}
    <div class="px-6 py-12 text-center text-gray-500 dark:text-gray-400">No metadata cached yet</div>
    {{end}}
</div>

{{if .EnrichmentStats.HasVulns}}
{{template "security_overview" .EnrichmentStats}}
{{end}}

{{if .Runtime.Available}}
{{template "runtime_metrics" .Runtime}}
{{end}}

<p class="text-sm text-gray-500 dark:text-gray-400">
    Every figure on this page is also exported for Prometheus at
    <a href="/metrics" class="text-blue-600 dark:text-blue-400 hover:underline">/metrics</a>.
    This page shows current state only — nothing here is a time series. For history,
    trends and alerting, scrape <code class="text-xs">/metrics</code> and use the
    Grafana dashboard shipped in <code class="text-xs">deploy/grafana/</code>.
</p>
{{end}}

{{define "scripts"}}
<script>
  (function () {
    const donut = document.querySelector('.donut');
    if (!donut) return;

    const slices = Array.from(donut.querySelectorAll('.donut-slice'));
    const rows = Array.from(document.querySelectorAll('.legend-row'));

    const tip = document.createElement('div');
    tip.className = 'pointer-events-none fixed z-50 hidden rounded-lg bg-gray-900 dark:bg-gray-100 ' +
                    'px-3 py-2 text-xs text-gray-100 dark:text-gray-900 shadow-lg';
    document.body.appendChild(tip);

    function activate(index) {
      slices.forEach(s => s.classList.toggle('is-active', s.dataset.slice === index));
      rows.forEach(r => r.classList.toggle('is-active', r.dataset.slice === index));
    }

    function clear() {
      slices.forEach(s => s.classList.remove('is-active'));
      rows.forEach(r => r.classList.remove('is-active'));
      tip.classList.add('hidden');
    }

    function line(cls, text) {
      const el = document.createElement('div');
      el.className = cls;
      el.textContent = text;
      return el;
    }

    function show(el, event) {
      const d = el.dataset;
      tip.replaceChildren(
        line('font-semibold', d.label),
        line('mt-1 tabular-nums whitespace-nowrap', d.value + ' · ' + d.share + '% of total'),
        line('tabular-nums whitespace-nowrap', d.downloads + ' downloads · ' + d.cache + ' cached')
      );
      if (d.members) {
        tip.appendChild(line('mt-1 max-w-[16rem] text-gray-300 dark:text-gray-600', d.members));
      }
      tip.classList.remove('hidden');
      move(event);
    }

    function move(event) {
      const pad = 14;
      const r = tip.getBoundingClientRect();
      let x = event.clientX + pad;
      let y = event.clientY + pad;
      if (x + r.width > window.innerWidth - pad) x = event.clientX - r.width - pad;
      if (y + r.height > window.innerHeight - pad) y = event.clientY - r.height - pad;
      tip.style.left = x + 'px';
      tip.style.top = y + 'px';
    }

    // The arc stroke is a thin ring, so the row is given the same hover
    // behaviour: it is a much larger hit target for the same slice.
    slices.concat(rows).forEach(el => {
      el.addEventListener('mouseenter', e => { activate(el.dataset.slice); show(el, e); });
      el.addEventListener('mousemove', move);
      el.addEventListener('mouseleave', clear);
    });
    donut.addEventListener('mouseleave', clear);
  })();
</script>
{{end}}