package thing

import (
	"context"
	"database/sql"
	"errors"
	"net/http/httptest"
	"strconv"
	"testing"

	"github.com/brianvoe/gofakeit/v6"
	"github.com/gofiber/fiber/v2"
	"github.com/gojuno/minimock/v3"
	"github.com/stretchr/testify/assert"

	API "git.dmitriygnatenko.ru/dima/homethings/internal/api/v1"
	"git.dmitriygnatenko.ru/dima/homethings/internal/api/v1/thing/mocks"
	"git.dmitriygnatenko.ru/dima/homethings/internal/dto"
	"git.dmitriygnatenko.ru/dima/homethings/internal/helpers"
	"git.dmitriygnatenko.ru/dima/homethings/internal/models"
)

func TestGetThingHandler(t *testing.T) {
	t.Parallel()

	type req struct {
		method string
		route  string
	}

	var (
		thingID   = gofakeit.Number(1, 1000)
		placeID   = gofakeit.Number(1, 1000)
		testError = errors.New(gofakeit.Phrase())
		layout    = "2006-01-02 15:04:05"

		correctReq = req{
			method: fiber.MethodGet,
			route:  "/v1/things/" + strconv.Itoa(thingID),
		}

		thingRepoRes = models.Thing{
			ID:          thingID,
			PlaceID:     placeID,
			Title:       gofakeit.Phrase(),
			Description: gofakeit.Phrase(),
			CreatedAt:   gofakeit.Date(),
			UpdatedAt:   gofakeit.Date(),
		}

		expectedRes = dto.ThingResponse{
			ID:          thingID,
			PlaceID:     placeID,
			Title:       thingRepoRes.Title,
			Description: thingRepoRes.Description,
			CreatedAt:   thingRepoRes.CreatedAt.Format(layout),
			UpdatedAt:   thingRepoRes.UpdatedAt.Format(layout),
		}
	)

	tests := []struct {
		name          string
		req           req
		resCode       int
		resBody       interface{}
		thingRepoMock func(mc *minimock.Controller) ThingRepository
	}{
		{
			name:    "positive case",
			req:     correctReq,
			resCode: fiber.StatusOK,
			resBody: expectedRes,
			thingRepoMock: func(mc *minimock.Controller) ThingRepository {
				mock := mocks.NewThingRepositoryMock(mc)

				mock.GetMock.Inspect(func(ctx context.Context, id int) {
					assert.Equal(mc, thingID, id)
				}).Return(&thingRepoRes, nil)

				return mock
			},
		},
		{
			name:    "negative case - not found",
			req:     correctReq,
			resCode: fiber.StatusNotFound,
			thingRepoMock: func(mc *minimock.Controller) ThingRepository {
				mock := mocks.NewThingRepositoryMock(mc)

				mock.GetMock.Inspect(func(ctx context.Context, id int) {
					assert.Equal(mc, thingID, id)
				}).Return(nil, sql.ErrNoRows)

				return mock
			},
		},
		{
			name:    "negative case - repository error",
			req:     correctReq,
			resCode: fiber.StatusInternalServerError,
			thingRepoMock: func(mc *minimock.Controller) ThingRepository {
				mock := mocks.NewThingRepositoryMock(mc)

				mock.GetMock.Inspect(func(ctx context.Context, id int) {
					assert.Equal(mc, thingID, id)
				}).Return(nil, testError)

				return mock
			},
		},
		{
			name: "negative case - bad request",
			req: req{
				method: fiber.MethodGet,
				route:  "/v1/things/" + gofakeit.Word(),
			},
			resCode: fiber.StatusBadRequest,
			resBody: nil,
			thingRepoMock: func(mc *minimock.Controller) ThingRepository {
				return mocks.NewThingRepositoryMock(mc)
			},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()

			mc := minimock.NewController(t)
			fiberApp := fiber.New()
			fiberApp.Get("/v1/things/:thingId", GetThingHandler(tt.thingRepoMock(mc)))

			fiberRes, _ := fiberApp.Test(httptest.NewRequest(tt.req.method, tt.req.route, nil), API.DefaultTestTimeOut)
			assert.Equal(t, tt.resCode, fiberRes.StatusCode)
			if tt.resBody != nil {
				assert.Equal(t, helpers.MarshalResponse(tt.resBody), helpers.ConvertBodyToString(fiberRes.Body))
			}
		})
	}
}