package templates_test

import (
	"embed"
	"io"
	"testing"
	"text/template"

	"github.com/golangci/golangci-lint/pkg/report"
	"github.com/golangci/golangci-lint/pkg/result"
)

var (
	//go:embed *
	templatesFS embed.FS
	templates   *template.Template
)

func init() {
	if tmpl, err := template.New("issue_templates").ParseFS(templatesFS, "*.tmpl.md"); err != nil {
		panic(err)
	} else {
		templates = tmpl
	}
}

func TestRenderTemplates(t *testing.T) {
	t.Parallel()
	tests := []struct {
		name         string
		templateName string
		templateData any
	}{
		{
			name:         "Render issue_summary.tmpl.md",
			templateName: "issue_summary.tmpl.md",
			templateData: map[string]any{
				"Report": &report.Data{
					Error: "Some error",
				},
				"Issue": result.Issue{
					FromLinter: "Sample",
					Text:       "Sample description",
				},
			},
		},
		{
			name:         "Render issue_comment.tmpl.md",
			templateName: "issue_comment.tmpl.md",
			templateData: map[string]any{
				"Issue": result.Issue{
					FromLinter: "Sample",
					Text:       "Sample description",
				},
			},
		},
	}
	for _, tc := range tests {
		tt := tc
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()
			if err := templates.ExecuteTemplate(io.Discard, tt.templateName, tt.templateData); err != nil {
				t.Errorf("Failed to render emplate: %v", err)
			}
		})
	}
}