module Web.View.GovernanceTemplates.Show 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

data ShowView = ShowView
    { template   :: !GovernanceTemplate
    , hub        :: !Hub
    , cloneCount :: !Int
    }

instance View ShowView where
    html ShowView { .. } = [hsx|
        <div class="mb-4">
            <a href={GovernanceTemplatesAction} class="text-sm text-gray-500 hover:text-gray-700">
                ← Governance Templates
            </a>
        </div>

        <div class="flex items-center gap-3 mb-2">
            <h1 class="text-2xl font-semibold">{template.name}</h1>
            {renderPublishedBadge template.isPublished}
        </div>

        <p class="text-sm text-gray-500 mb-1">Hub: {hub.name}</p>
        <p class="text-sm text-gray-500 mb-4">{tshow cloneCount} clones</p>

        {maybe mempty renderTemplateDesc template.description}

        <div class="mb-4">
            <h3 class="text-sm font-semibold text-gray-700 mb-2">Categories</h3>
            <div class="flex flex-wrap gap-1">
                {forEach (jsonArrayTexts template.categories) renderCategoryTag}
                {if null (jsonArrayTexts template.categories) then noCategoriesBadge else mempty}
            </div>
        </div>

        <div class="mb-6">
            <h3 class="text-sm font-semibold text-gray-700 mb-2">Template Body</h3>
            <pre class="bg-gray-50 rounded border border-gray-200 p-3 text-xs font-mono overflow-x-auto">
                {cs (BL.unpack (encode template.templateBody)) :: Text}
            </pre>
        </div>

        {if template.isPublished then renderCloneLink template.id else mempty}
    |]

renderCloneLink :: Id GovernanceTemplate -> Html
renderCloneLink tid = [hsx|
    <a href={CloneGovernanceTemplateAction (tid)}
       class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
        Clone to My Hub
    </a>
|]

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>
|]

renderPublishedBadge :: Bool -> Html
renderPublishedBadge True  = [hsx|<span class="px-2 py-0.5 rounded text-xs bg-green-100 text-green-800">published</span>|]
renderPublishedBadge False = [hsx|<span class="px-2 py-0.5 rounded text-xs bg-amber-100 text-amber-800">draft</span>|]

noCategoriesBadge :: Html
noCategoriesBadge = [hsx|<span class="text-xs text-gray-400">None</span>|]

renderTemplateDesc :: Text -> Html
renderTemplateDesc d = [hsx|<p class="text-sm text-gray-600 mb-4">{d}</p>|]

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