{{ define "repo/pulls/fragments/pullStepDetails" }}
    {{ $hasSidePanel := and .LabelDefs .RepoInfo.Roles.IsPushAllowed }}
    {{ $previewUrl := printf "/%s/pulls/new/preview" .RepoInfo.FullName }}
    {{ $labelCtx := dict "Defs" .LabelDefs "State" .LabelState "RepoInfo" .RepoInfo "Subject" "" "LoggedInUser" .LoggedInUser }}

    <section class="flex flex-col md:flex-row gap-6">
        <div class="flex-1 min-w-0 flex flex-col gap-4">
            {{ template "pullStepDetailsSingle" (dict "Root" . "PreviewUrl" $previewUrl) }}
            {{ template "pullSubmitRow" . }}
        </div>

        {{ if $hasSidePanel }}
            <aside class="w-full md:w-72 md:flex-shrink-0 flex flex-col gap-6">
                {{ template "editBasicLabels" $labelCtx }}
                {{ template "editKvLabels" $labelCtx }}
            </aside>
        {{ end }}
    </section>

    {{ template "markdownEditorScript" }}
{{ end }}

{{ define "pullStepDetailsSingle" }}
    {{ $root := .Root }}
    {{ $previewUrl := .PreviewUrl }}
    <div class="flex flex-col gap-1">
        <label for="title" class="text-xs uppercase tracking-wide text-gray-800 dark:text-gray-200">title</label>
        <input
            type="text"
            name="title"
            id="title"
            value="{{ $root.Title }}"
            class="w-full dark:bg-gray-800 dark:text-white dark:border-gray-700"
            placeholder="One-line summary of your change."
        />
    </div>

    {{ template "markdownEditor" (dict
        "Id" "pull-body"
        "Name" "body"
        "Value" $root.Body
        "Rows" 6
        "Placeholder" "Describe your change. Markdown is supported."
        "PreviewUrl" $previewUrl
    ) }}
{{ end }}

{{ define "markdownEditor" }}
    {{ $id := .Id }}
    {{ $name := .Name }}
    {{ $value := .Value }}
    {{ $rows := .Rows }}
    {{ $placeholder := .Placeholder }}
    {{ $previewUrl := .PreviewUrl }}
    <div class="flex flex-col gap-2" data-md-editor="{{ $id }}">
        {{ $tabClasses := "group flex items-center gap-2 px-3 py-1 text-sm whitespace-nowrap rounded hover:no-underline data-[active=true]:bg-white data-[active=true]:dark:bg-gray-800 data-[active=true]:shadow-sm data-[active=true]:cursor-default data-[active=false]:hover:text-gray-900 data-[active=false]:dark:hover:text-white" }}
        <div class="inline-flex items-center gap-1 p-1 bg-slate-100 dark:bg-gray-900 rounded-md text-gray-600 dark:text-gray-300 self-start border dark:border-gray-700">
            <button type="button" data-md-mode="write"
                data-active="true"
                class="{{ $tabClasses }}">
                {{ i "pencil" "w-3.5 h-3.5 inline group-[.htmx-request]:hidden" }}
                Write
            </button>
            <button type="button" data-md-mode="preview"
                data-active="false"
                hx-post="{{ $previewUrl }}"
                hx-vals='js:{body: document.querySelector("[data-md-editor=\"{{ $id }}\"] textarea").value}'
                hx-params="body"
                hx-target="[data-md-editor='{{ $id }}'] [data-md-preview]"
                hx-swap="innerHTML"
                hx-indicator="this"
                class="{{ $tabClasses }}">
                {{ i "eye" "w-3.5 h-3.5 inline group-[.htmx-request]:hidden" }}
                {{ i "loader-circle" "w-3.5 h-3.5 animate-spin hidden group-[.htmx-request]:inline" }}
                Preview
            </button>
        </div>
        <div data-md-panel="write">
            <textarea
                id="{{ $id }}"
                name="{{ $name }}"
                rows="{{ $rows }}"
                class="w-full resize-y dark:bg-gray-800 dark:text-white dark:border-gray-700"
                placeholder="{{ $placeholder }}"
            >{{ $value }}</textarea>
        </div>
        <div data-md-panel="preview" class="hidden">
            <div data-md-preview class="min-h-[6rem] p-3 border border-gray-200 dark:border-gray-700 rounded bg-gray-50 dark:bg-gray-900/30">
                <span class="text-gray-400 dark:text-gray-500 italic">Loading preview...</span>
            </div>
        </div>
    </div>
{{ end }}

{{ define "pullSubmitRow" }}
    <div class="flex items-center justify-end gap-4 mt-auto">
        {{ if and .MergeCheck .MergeCheck.IsConflicted }}
            <div class="flex items-center gap-2 text-sm">
                <span class="inline-flex items-center gap-1 text-red-600 dark:text-red-400">
                    {{ i "x" "w-4 h-4" }}
                    Can't automatically merge
                </span>
                <span class="text-gray-500 dark:text-gray-400">You can still create the pull request</span>
            </div>
        {{ else if and .MergeCheck .MergeCheck.Error }}
            <div class="flex items-center gap-2 text-sm text-red-600 dark:text-red-400">
                {{ i "triangle-alert" "w-4 h-4" }}
                Merge check failed
            </div>
        {{ end }}

        <button
            type="submit"
            class="btn-create flex items-center gap-2"
            hx-indicator="#create-pull-spinner"
        >
            {{ i "git-pull-request-create" "w-4 h-4" }}
            Create pull request
            <span id="create-pull-spinner" class="group">
                {{ i "loader-circle" "w-4 h-4 animate-spin hidden group-[.htmx-request]:inline" }}
            </span>
        </button>
    </div>
{{ end }}

{{ define "markdownEditorScript" }}
    <script>
    (() => {
        if (window.__mdEditorWired) return;
        window.__mdEditorWired = true;
        document.body.addEventListener('click', (e) => {
            const btn = e.target.closest('[data-md-mode]');
            if (!btn) return;
            const editor = btn.closest('[data-md-editor]');
            if (!editor) return;
            const mode = btn.dataset.mdMode;
            editor.querySelectorAll('[data-md-panel]').forEach(p => {
                p.classList.toggle('hidden', p.dataset.mdPanel !== mode);
            });
            editor.querySelectorAll('[data-md-mode]').forEach(b => {
                b.dataset.active = (b === btn) ? 'true' : 'false';
            });
        });
    })();
    </script>
{{ end }}
