package email

import (
	"embed"
	"strings"
	"testing"
)

//go:embed emails
var testEmails embed.FS

func TestBaseRender(t *testing.T) {
	var b Base
	b.Init(testEmails, nil)

	out, err := b.Render("welcome.html", map[string]any{"name": "Connor"})
	if err != nil {
		t.Fatalf("render: %v", err)
	}
	if !strings.Contains(out, "Welcome, Connor!") {
		t.Fatalf("render: got %q, want it to contain the name", out)
	}
}

func TestBaseRenderMissingTemplate(t *testing.T) {
	var b Base
	b.Init(testEmails, nil)
	if _, err := b.Render("nope.html", nil); err == nil {
		t.Fatal("expected an error rendering a missing template")
	}
}

func TestLoggerSend(t *testing.T) {
	l := NewLogger(testEmails, nil)
	if err := l.Send("a@b.co", "Hi", "reset.html", map[string]any{"name": "Connor", "link": "https://x"}); err != nil {
		t.Fatalf("send: %v", err)
	}
}

// compile-time check that the senders satisfy Emailer.
var (
	_ Emailer = (*Logger)(nil)
	_ Emailer = (*Congo)(nil)
	_ Emailer = (*Resend)(nil)
)