package test

import (
	"encoding/json"
	"net/http"
	"os"
	"testing"
)

type inviteEmailCase struct {
	Email string `json:"email"`
	Valid bool   `json:"valid"`
}

func loadInviteEmailCases(t *testing.T) []inviteEmailCase {
	t.Helper()
	raw, err := os.ReadFile("testdata/invite_emails.json")
	if err != nil {
		t.Fatalf("read fixture: %v", err)
	}
	var cases []inviteEmailCase
	if err := json.Unmarshal(raw, &cases); err != nil {
		t.Fatalf("decode fixture: %v", err)
	}
	return cases
}

func TestInviteEmailValidationHttp(t *testing.T) {
	t.Run("The same address gets the same verdict on both sides", func(t *testing.T) {
		for _, tc := range loadInviteEmailCases(t) {
			t.Run("["+tc.Email+"]", func(t *testing.T) {
				f := newInviteFixture(t, 100)
				body, _ := json.Marshal(map[string]string{"email": tc.Email})

				rec := f.post(t, string(body))

				if tc.Valid && rec.Code != http.StatusCreated {
					t.Errorf("expected 201, got %d: %s", rec.Code, rec.Body.String())
				}
				if !tc.Valid && rec.Code != http.StatusBadRequest {
					t.Errorf("expected 400, got %d: %s", rec.Code, rec.Body.String())
				}
			})
		}
	})

	t.Run("A rejected address stores nothing and sends nothing", func(t *testing.T) {
		f := newInviteFixture(t, 100)

		rec := f.post(t, `{"email": "user@localhost"}`)

		if rec.Code != http.StatusBadRequest {
			t.Errorf("expected 400, got %d", rec.Code)
		}
		if len(f.invites.invites) != 0 || len(f.mail.SentEmails) != 0 {
			t.Errorf("nothing may be stored or sent, got %d invites and %d emails", len(f.invites.invites), len(f.mail.SentEmails))
		}
	})
}