package sitebuilder_test

import (
	"os"
	"path/filepath"
	"testing"
	"testing/fstest"

	"github.com/stretchr/testify/assert"
	"lmika.dev/lmika/weiro/models"
	"lmika.dev/lmika/weiro/models/pubmodel"
	"lmika.dev/lmika/weiro/providers/sitebuilder"
)

func TestBuilder_BuildSite(t *testing.T) {
	t.Run("build site", func(t *testing.T) {
		tmpls := fstest.MapFS{
			"posts_single.html": {Data: []byte(`{{ .HTML }}`)},
			"posts_list.html":   {Data: []byte(`{{ range .Posts}}<a href="{{url_abs .Path}}">{{.Post.Title}}</a>,{{ end }}`)},
			"layout_main.html":  {Data: []byte(`{{ .Body }}`)},
		}

		site := pubmodel.Site{
			BaseURL: "https://example.com",
			Posts: []*models.Post{
				{
					Title: "Test Post",
					Slug:  "/2026/02/18/test-post",
					Body:  "This is a test post",
				},
				{
					Title: "Another Post",
					Slug:  "/2026/02/20/another-post",
					Body:  "This is **another** test post",
				},
			},
		}
		wantFiles := map[string]string{
			"2026/02/18/test-post/index.html":    "<p>This is a test post</p>\n",
			"2026/02/20/another-post/index.html": "<p>This is <strong>another</strong> test post</p>\n",
			"index.html":                         "<a href=\"https://example.com/2026/02/18/test-post\">Test Post</a>,<a href=\"https://example.com/2026/02/20/another-post\">Another Post</a>,",
		}

		outDir := t.TempDir()

		b, err := sitebuilder.New(site, sitebuilder.Options{
			TemplatesFS: tmpls,
		})
		assert.NoError(t, err)

		err = b.BuildSite(outDir)
		assert.NoError(t, err)

		for file, content := range wantFiles {
			filePath := filepath.Join(outDir, file)
			fileContent, err := os.ReadFile(filePath)
			assert.NoError(t, err)
			assert.Equal(t, content, string(fileContent))
		}
	})

}