module Web.View.CrossHubPropagations.Index where

import Web.Types
import Generated.Types
import IHP.Prelude
import IHP.ViewPrelude
import Web.Routes ()

data IndexView = IndexView
    { propagations :: ![CrossHubPropagation]
    , hubs         :: ![Hub]
    }

instance View IndexView where
    html IndexView { .. } = [hsx|
        <div class="flex items-center justify-between mb-6">
            <h1 class="text-2xl font-semibold">Cross-Hub Propagations</h1>
            <a href={DetectPropagationsAction}
               class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
                Detect
            </a>
        </div>

        {renderPropagationsList propagations hubs}
    |]
renderPropagationsList :: [CrossHubPropagation] -> [Hub] -> Html
renderPropagationsList [] _ = [hsx|<p class="text-sm text-gray-400">No propagation events detected yet.</p>|]
renderPropagationsList propagations hubs = [hsx|
    <div class="bg-white rounded-lg border border-gray-200 overflow-hidden">
        <table class="w-full text-sm">
            <thead class="bg-gray-50 border-b border-gray-200">
                <tr>
                    <th class="text-left px-4 py-3 font-medium text-gray-700">Pattern</th>
                    <th class="text-left px-4 py-3 font-medium text-gray-700">Summary</th>
                    <th class="text-left px-4 py-3 font-medium text-gray-700">Source Hub</th>
                    <th class="text-left px-4 py-3 font-medium text-gray-700">Status</th>
                    <th class="text-left px-4 py-3 font-medium text-gray-700">Detected</th>
                    <th class="px-4 py-3"></th>
                </tr>
            </thead>
            <tbody class="divide-y divide-gray-100">
                {forEach propagations (renderPropRow hubs)}
            </tbody>
        </table>
    </div>
|]

renderPropRow :: [Hub] -> CrossHubPropagation -> Html
renderPropRow hubs p =
    let hubName hid = maybe "–" (.name) (find (\h -> h.id == hid) hubs)
    in [hsx|
    <tr class="hover:bg-gray-50">
        <td class="px-4 py-3">
            <span class="bg-purple-100 text-purple-700 text-xs px-1.5 py-0.5 rounded">
                {p.patternType}
            </span>
        </td>
        <td class="px-4 py-3 text-gray-700">{p.summary}</td>
        <td class="px-4 py-3 text-gray-500 text-xs">
            {maybe "–" hubName p.sourceHubId}
        </td>
        <td class="px-4 py-3">
            <span class={statusBadge p.status <> " text-xs px-2 py-0.5 rounded font-medium"}>
                {p.status}
            </span>
        </td>
        <td class="px-4 py-3 text-xs text-gray-400">{show p.detectedAt}</td>
        <td class="px-4 py-3 text-right">
            {renderAcknowledgeLink p}
            {renderResolveLink p}
        </td>
    </tr>
|]

renderAcknowledgeLink :: CrossHubPropagation -> Html
renderAcknowledgeLink p
    | p.status == "open" = [hsx|<a href={AcknowledgePropagationAction (p.id)}
                                    class="text-xs text-yellow-600 hover:underline mr-2">Acknowledge</a>|]
    | otherwise = mempty

renderResolveLink :: CrossHubPropagation -> Html
renderResolveLink p
    | p.status /= "resolved" = [hsx|<a href={ResolvePropagationAction (p.id)}
                                        class="text-xs text-green-600 hover:underline">Resolve</a>|]
    | otherwise = mempty

statusBadge :: Text -> Text
statusBadge s = case s of
    "open"         -> "bg-yellow-100 text-yellow-800"
    "acknowledged" -> "bg-blue-100 text-blue-800"
    "resolved"     -> "bg-green-100 text-green-800"
    _              -> "bg-gray-100 text-gray-600"