package authsessionmail_test

import (
	"net/url"
	"testing"
	"time"

	"github.com/stretchr/testify/require"
)

func TestAuthsessionMailBlackBoxSendEmailCodeCreatesSuppressedDelivery(t *testing.T) {
	h := newAuthsessionMailHarness(t, authsessionMailHarnessOptions{})
	email := "pilot@example.com"

	response := h.sendChallengeWithAcceptLanguage(t, email, "fr-FR, en;q=0.8")
	require.NotEmpty(t, response.ChallengeID)

	list := h.eventuallyListDeliveries(t, url.Values{
		"source":      []string{"authsession"},
		"status":      []string{"suppressed"},
		"recipient":   []string{email},
		"template_id": []string{"auth.login_code"},
	})
	require.Len(t, list.Items, 1)
	require.Equal(t, "authsession", list.Items[0].Source)
	require.Equal(t, "suppressed", list.Items[0].Status)
	require.Equal(t, "auth.login_code", list.Items[0].TemplateID)
	require.Equal(t, "fr-FR", list.Items[0].Locale)
	require.Equal(t, []string{email}, list.Items[0].To)

	detail := h.getDelivery(t, list.Items[0].DeliveryID)
	require.Equal(t, "authsession", detail.Source)
	require.Equal(t, "suppressed", detail.Status)
	require.Equal(t, "auth.login_code", detail.TemplateID)
	require.Equal(t, "fr-FR", detail.Locale)
	require.False(t, detail.LocaleFallbackUsed)
	require.Equal(t, []string{email}, detail.To)
	require.NotEmpty(t, detail.IdempotencyKey)

	attempts := h.getDeliveryAttempts(t, detail.DeliveryID)
	require.Empty(t, attempts.Items)
}

func TestAuthsessionMailBlackBoxSendEmailCodeReturnsServiceUnavailableWhenMailServiceStops(t *testing.T) {
	h := newAuthsessionMailHarness(t, authsessionMailHarnessOptions{})
	h.stopMail(t)

	response := postJSONValueWithHeaders(
		t,
		h.authsessionPublicURL+authSendEmailCodePath,
		map[string]string{"email": "pilot@example.com"},
		nil,
	)

	require.Equal(t, 503, response.StatusCode)
	require.JSONEq(t, `{"error":{"code":"service_unavailable","message":"service is unavailable"}}`, response.Body)
}

func TestAuthsessionMailBlackBoxSMTPDeliveryReachesSentStateAndSMTPPayload(t *testing.T) {
	h := newAuthsessionMailHarness(t, authsessionMailHarnessOptions{mailSMTPMode: "smtp"})
	email := "pilot@example.com"

	response := h.sendChallengeWithAcceptLanguage(t, email, "fr-FR, en;q=0.8")
	require.NotEmpty(t, response.ChallengeID)

	list := h.eventuallyListDeliveries(t, url.Values{
		"source":      []string{"authsession"},
		"recipient":   []string{email},
		"template_id": []string{"auth.login_code"},
	})
	require.Len(t, list.Items, 1)
	require.Equal(t, "authsession", list.Items[0].Source)
	require.Equal(t, "auth.login_code", list.Items[0].TemplateID)
	require.Equal(t, "fr-FR", list.Items[0].Locale)
	require.Equal(t, []string{email}, list.Items[0].To)

	var detail mailDeliveryDetailResponse
	require.Eventually(t, func() bool {
		detail = h.getDelivery(t, list.Items[0].DeliveryID)
		return detail.Status == "sent"
	}, 10*time.Second, 50*time.Millisecond)
	require.Equal(t, "authsession", detail.Source)
	require.Equal(t, "sent", detail.Status)
	require.Equal(t, "auth.login_code", detail.TemplateID)
	require.Equal(t, "fr-FR", detail.Locale)
	require.True(t, detail.LocaleFallbackUsed)
	require.Equal(t, []string{email}, detail.To)
	require.NotEmpty(t, detail.IdempotencyKey)

	code, ok := detail.TemplateVariables["code"].(string)
	require.True(t, ok)
	require.Len(t, code, 6)

	var attempts mailDeliveryAttemptsResponse
	require.Eventually(t, func() bool {
		attempts = h.getDeliveryAttempts(t, detail.DeliveryID)
		return len(attempts.Items) == 1 && attempts.Items[0].Status == "provider_accepted"
	}, 10*time.Second, 50*time.Millisecond)
	require.Len(t, attempts.Items, 1)
	require.Equal(t, "provider_accepted", attempts.Items[0].Status)

	require.NotNil(t, h.smtp)
	var payload string
	require.Eventually(t, func() bool {
		payload = h.smtp.LatestPayload()
		return payload != ""
	}, 10*time.Second, 50*time.Millisecond)
	require.Contains(t, payload, "Subject:")
	require.Contains(t, payload, "Your login code is "+code+".")
}