module Web.View.GovernanceTemplates.Index where

import Web.Types
import Generated.Types
import IHP.Prelude
import IHP.ViewPrelude
import Web.Routes ()
import Data.Aeson (Value(..), decode, encode)
import qualified Data.ByteString.Lazy.Char8 as BL

type TemplateIndexRow = (GovernanceTemplate, Int)

data IndexView = IndexView
    { templates :: ![TemplateIndexRow]
    }

instance View IndexView where
    html IndexView { .. } = [hsx|
        <div class="flex items-center justify-between mb-6">
            <div>
                <h1 class="text-2xl font-semibold">Governance Template Library</h1>
                <p class="text-sm text-gray-500 mt-1">Published reusable governance templates.</p>
            </div>
            <a href={NewGovernanceTemplateAction}
               class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
                New Template
            </a>
        </div>

        <div class="space-y-3">
            {forEach templates renderTemplateRow}
            {if null templates then noTemplatesMsg else mempty}
        </div>
    |]

renderTemplateRow :: TemplateIndexRow -> Html
renderTemplateRow (template, cloneCount) = [hsx|
    <div class="bg-white rounded-lg border border-gray-200 p-4 hover:border-indigo-200">
        <div class="flex items-center justify-between">
            <div>
                <a href={ShowGovernanceTemplateAction (template.id)}
                   class="font-medium text-indigo-700 hover:underline">
                    {template.name}
                </a>
                {maybe mempty renderTemplateDesc template.description}
            </div>
            <span class="text-xs text-gray-400">{tshow cloneCount} clones</span>
        </div>
        <div class="mt-2 flex flex-wrap gap-1">
            {forEach (jsonArrayTexts template.categories) renderCategoryTag}
        </div>
    </div>
|]

noTemplatesMsg :: Html
noTemplatesMsg = [hsx|<p class="text-sm text-gray-400">No published templates yet.</p>|]

renderTemplateDesc :: Text -> Html
renderTemplateDesc d = [hsx|<p class="text-xs text-gray-500 mt-0.5">{d}</p>|]

renderCategoryTag :: Text -> Html
renderCategoryTag cat = [hsx|
    <span class="px-2 py-0.5 rounded text-xs bg-blue-100 text-blue-700 font-mono">{cat}</span>
|]

jsonArrayTexts :: Value -> [Text]
jsonArrayTexts val = case decode (encode val) of
    Just (arr :: [Text]) -> arr
    Nothing              -> []