package socialnetworkservicelogic

import (
	"app-cloudep-tweeting-service/gen_result/pb/tweeting"
	mocklib "app-cloudep-tweeting-service/internal/mock/lib"
	mockRepo "app-cloudep-tweeting-service/internal/mock/repository"
	"app-cloudep-tweeting-service/internal/svc"
	"context"
	"errors"
	"testing"

	"github.com/stretchr/testify/assert"
	"go.uber.org/mock/gomock"
)

func TestGetFolloweeCountLogic_GetFolloweeCount(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	mockSocialNetworkRepository := mockRepo.NewMockSocialNetworkRepository(ctrl)
	mockValidate := mocklib.NewMockValidate(ctrl)

	svcCtx := &svc.ServiceContext{
		SocialNetworkRepository: mockSocialNetworkRepository,
		Validate:                mockValidate,
	}

	// 测试数据集
	tests := []struct {
		name      string
		input     *tweeting.FollowCountReq
		prepare   func()
		expectErr bool
	}{
		{
			name: "ok",
			input: &tweeting.FollowCountReq{
				Uid: "12345",
			},
			prepare: func() {
				mockValidate.EXPECT().ValidateAll(gomock.Any()).Return(nil).Times(1)
				mockSocialNetworkRepository.EXPECT().GetFolloweeCount(gomock.Any(), "12345").Return(int64(10), nil).Times(1)
			},
			expectErr: false,
		},
		{
			name: "驗證失敗",
			input: &tweeting.FollowCountReq{
				Uid: "",
			},
			prepare: func() {
				mockValidate.EXPECT().ValidateAll(gomock.Any()).Return(errors.New("validation failed")).Times(1)
			},
			expectErr: true,
		},
		{
			name: "取得跟隨數量失敗",
			input: &tweeting.FollowCountReq{
				Uid: "12345",
			},
			prepare: func() {
				mockValidate.EXPECT().ValidateAll(gomock.Any()).Return(nil).Times(1)
				mockSocialNetworkRepository.EXPECT().GetFolloweeCount(gomock.Any(), "12345").Return(int64(0), errors.New("repository error")).Times(1)
			},
			expectErr: true,
		},
	}

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

			logic := GetFolloweeCountLogic{
				svcCtx: svcCtx,
				ctx:    context.TODO(),
			}

			got, err := logic.GetFolloweeCount(tt.input)

			if tt.expectErr {
				assert.Error(t, err)
			} else {
				assert.NoError(t, err)
				assert.Equal(t, tt.input.Uid, got.Uid)
			}
		})
	}
}