package webutil

import (
	"bytes"
	"embed"
	"html/template"
	"strings"
	"testing"
)

//go:embed all:test-templates
var testFS embed.FS

func TestParseTemplateSet(t *testing.T) {
	funcs := template.FuncMap{"join": strings.Join}
	m := ParseTemplateSet(funcs, testFS)

	type TestCase struct {
		Key  string
		Data any
		Out  string
	}

	cases := []TestCase{
		{
			Key:  "/home.html",
			Data: "DATA",
			Out:  "<p>HOME!</p>",
		}, {
			Key:  "/about.html",
			Data: "DATA",
			Out:  "<p><b>DATA</b></p>",
		}, {
			Key:  "/contact.html",
			Data: []string{"a", "b", "c"},
			Out:  "<p>a,b,c</p>",
		},
	}

	for _, tc := range cases {
		b := &bytes.Buffer{}
		m[tc.Key].Execute(b, tc.Data)
		out := strings.TrimSpace(b.String())
		if out != tc.Out {
			t.Fatalf("%s != %s", out, tc.Out)
		}
	}

}