module Web.View.PatternPerformance.Index where

import Web.View.Prelude

data IndexView = IndexView
    { records :: ![PatternPerformanceRecord]
    , hubs    :: ![Hub]
    }

instance View IndexView where
    html IndexView { .. } = [hsx|
        <div class="p-6">
            <div class="flex justify-between items-center mb-6">
                <h1 class="text-2xl font-bold text-gray-900">Pattern Performance</h1>
            </div>
            <div class="mb-4 flex gap-2 flex-wrap">
                {forEach hubs renderRecomputeButton}
            </div>
            <div class="bg-white shadow rounded-lg overflow-hidden">
                <table class="min-w-full divide-y divide-gray-200">
                    <thead class="bg-gray-50">
                        <tr>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Rank</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Pattern</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Adoptions</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Positive / Total</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Positive Rate</th>
                            <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Mean Value</th>
                        </tr>
                    </thead>
                    <tbody class="divide-y divide-gray-200">
                        {forM_ records renderRow}
                    </tbody>
                </table>
            </div>
        </div>
    |]
      where
        renderRow r =
            let rate = if r.totalOutcomeCount > 0
                        then fromIntegral r.positiveOutcomeCount / fromIntegral r.totalOutcomeCount :: Double
                        else 0.0
                rankLabel = maybe "-" show r.outcomeRank
            in [hsx|
            <tr>
                <td class="px-6 py-4 text-sm text-gray-500">{rankLabel}</td>
                <td class="px-6 py-4 text-sm font-medium text-gray-900">
                    <a href={ShowWidgetPatternAction (r.widgetPatternId)}
                       class="text-blue-600 hover:underline">{show r.widgetPatternId}</a>
                </td>
                <td class="px-6 py-4 text-sm text-gray-500">{show r.adoptionCount}</td>
                <td class="px-6 py-4 text-sm text-gray-500">{show r.positiveOutcomeCount}/{show r.totalOutcomeCount}</td>
                <td class="px-6 py-4 text-sm text-gray-500">{show (round (rate * 100) :: Int)}%</td>
                <td class="px-6 py-4 text-sm text-gray-500">{maybe "-" show r.meanOutcomeValue}</td>
            </tr>
        |]

renderRecomputeButton :: Hub -> Html
renderRecomputeButton h = [hsx|
    <form method="POST" action={ComputePatternPerformanceAction (h.id)} class="inline">
        {csrfTokenTag}
        <button type="submit"
            class="px-3 py-1.5 text-sm bg-indigo-600 text-white rounded hover:bg-indigo-700">
            Recompute for {h.name}
        </button>
    </form>
|]