package templates

import (
	"context"
	"strings"
	"testing"

	"bookhoard/internal/handlers"
)

// The rendering-ownership partials must render standalone (they are
// fetched by htmx.ajax at runtime) and must never leak templ literal
// expressions into their markup.
func TestRenderingPartialsRender(t *testing.T) {
	var b strings.Builder
	col := CollectionData{ID: "c1", Name: "Test Shelf", IsSmart: false}
	books := []handlers.BookInfo{{MediaItemID: "m1", Title: "A Book", Author: "An Author"}}
	if err := CollectionBooksGrid(col, books).Render(context.Background(), &b); err != nil {
		t.Fatalf("CollectionBooksGrid: %v", err)
	}
	out := b.String()
	for _, want := range []string{"A Book", `data-media-id="m1"`, "Remove from Collection"} {
		if !strings.Contains(out, want) {
			t.Errorf("books grid missing %q", want)
		}
	}

	// Empty collection renders the empty state, not a literal loop.
	b.Reset()
	if err := CollectionBooksGrid(col, nil).Render(context.Background(), &b); err != nil {
		t.Fatalf("CollectionBooksGrid empty: %v", err)
	}
	if !strings.Contains(b.String(), "No books in this collection yet.") {
		t.Error("books grid empty state missing")
	}

	b.Reset()
	user := User{ID: "u1", Timezone: "UTC"}
	conflicts := []handlers.ConflictDetailResponse{{ID: "cf1", MediaItemTitle: "War and Peace", ConflictType: "progress"}}
	if err := ConflictsRefreshFragment(user, conflicts, 3, 1).Render(context.Background(), &b); err != nil {
		t.Fatalf("ConflictsRefreshFragment: %v", err)
	}
	out = b.String()
	for _, want := range []string{`id="conflicts-list"`, `id="stats-bar"`, "hx-swap-oob", "Resolve"} {
		if !strings.Contains(out, want) {
			t.Errorf("conflicts fragment missing %q", want)
		}
	}
}