package internal

import (
	"context"
	"io"
	"net/http"
	"net/http/httptest"
	"os"
	"path/filepath"
	"testing"

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

func setupTest(t *testing.T, filename string) *Client {
	t.Helper()

	server := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
		file, err := os.Open(filepath.Join("fixtures", filename))
		if err != nil {
			http.Error(rw, err.Error(), http.StatusInternalServerError)
			return
		}

		defer func() { _ = file.Close() }()

		rw.WriteHeader(http.StatusOK)
		_, err = io.Copy(rw, file)
		if err != nil {
			http.Error(rw, err.Error(), http.StatusInternalServerError)
			return
		}
	}))
	t.Cleanup(server.Close)

	client, err := NewClient("test_user", "apiKey")
	require.NoError(t, err)

	client.HTTPClient = server.Client()
	client.baseURL = server.URL

	return client
}

func TestClient_StatusDomain(t *testing.T) {
	client := setupTest(t, "status-domain.json")

	domain, err := client.StatusDomain(context.Background(), "example.com")
	require.NoError(t, err)

	expected := &StatusResponse{
		RenewalMode:                []string{"DEFAULT"},
		Status:                     []string{"clientTransferProhibited"},
		TransferLock:               []int{1},
		Registrar:                  []string{"brandit"},
		PaidUntilDate:              []string{"2021-12-15 05:00:00.0"},
		Nameserver:                 []string{"NS1.RRPPROXY.NET", "NS2.RRPPROXY.NET"},
		RegistrationExpirationDate: []string{"2021-12-15 05:00:00.0"},
		Domain:                     []string{"example.com"},
		RenewalDate:                []string{"2024-01-19 05:00:00.0"},
		UpdatedDate:                []string{"2022-12-16 08:01:27.0"},
		BillingContact:             []string{"example"},
		XDomainRoID:                []string{"example"},
		AdminContact:               []string{"example"},
		TechContact:                []string{"example"},
		DomainIDN:                  []string{"example.com"},
		CreatedDate:                []string{"2016-12-16 05:00:00.0"},
		RegistrarTransferDate:      []string{"2021-12-09 05:17:42.0"},
		Zone:                       []string{"com"},
		Auth:                       []string{"example"},
		UpdatedBy:                  []string{"example"},
		RoID:                       []string{"example"},
		OwnerContact:               []string{"example"},
		CreatedBy:                  []string{"example"},
		TransferMode:               []string{"auto"},
	}

	assert.Equal(t, expected, domain)
}

func TestClient_StatusDomain_error(t *testing.T) {
	client := setupTest(t, "error.json")

	_, err := client.StatusDomain(context.Background(), "example.com")
	require.ErrorIs(t, err, APIError{Code: 402, Status: "error", Message: "Invalid user."})
}

func TestClient_ListRecords(t *testing.T) {
	client := setupTest(t, "list-records.json")

	resp, err := client.ListRecords(context.Background(), "example", "example.com")
	require.NoError(t, err)

	expected := &ListRecordsResponse{
		Limit:  []int{100},
		Column: []string{"rr"},
		Count:  []int{1},
		First:  []int{0},
		Total:  []int{1},
		RR:     []string{"example.com. 600 IN TXT txttxttxt"},
		Last:   []int{0},
	}

	assert.Equal(t, expected, resp)
}

func TestClient_ListRecords_error(t *testing.T) {
	client := setupTest(t, "error.json")

	_, err := client.ListRecords(context.Background(), "example", "example.com")
	require.ErrorIs(t, err, APIError{Code: 402, Status: "error", Message: "Invalid user."})
}

func TestClient_AddRecord(t *testing.T) {
	client := setupTest(t, "add-record.json")

	testRecord := Record{
		ID:      2565,
		Type:    "TXT",
		Name:    "example.com",
		Content: "txttxttxt",
		TTL:     600,
	}
	resp, err := client.AddRecord(context.Background(), "example.com", "test", "2565", testRecord)
	require.NoError(t, err)

	expected := &AddRecord{
		Response: AddRecordResponse{
			ZoneType: []string{"com"},
			Signed:   []int{1},
		},
		Record: "example.com 600 IN TXT txttxttxt",
		Code:   200,
		Status: "success",
		Error:  "",
	}

	assert.Equal(t, expected, resp)
}

func TestClient_AddRecord_error(t *testing.T) {
	client := setupTest(t, "error.json")

	testRecord := Record{
		ID:      2565,
		Type:    "TXT",
		Name:    "example.com",
		Content: "txttxttxt",
		TTL:     600,
	}

	_, err := client.AddRecord(context.Background(), "example.com", "test", "2565", testRecord)
	require.ErrorIs(t, err, APIError{Code: 402, Status: "error", Message: "Invalid user."})
}

func TestClient_DeleteRecord(t *testing.T) {
	client := setupTest(t, "delete-record.json")

	err := client.DeleteRecord(context.Background(), "example.com", "test", "example.com 600 IN TXT txttxttxt", "2374")
	require.NoError(t, err)
}

func TestClient_DeleteRecord_error(t *testing.T) {
	client := setupTest(t, "error.json")

	err := client.DeleteRecord(context.Background(), "example.com", "test", "example.com 600 IN TXT txttxttxt", "2374")
	require.ErrorIs(t, err, APIError{Code: 402, Status: "error", Message: "Invalid user."})
}