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import { blancLogger } from 'blanc-logger';
import { plainToInstance } from 'class-transformer';
import { BookmarkQueryRepository } from 'src/bookmark/bookmark.query.repository';
import { ERROR } from 'src/commons/constants/error';
import { LastItemIdResponseDto } from 'src/commons/dtos/last-item-id-response.dto';
import { PLACE_TYPE } from 'src/commons/enum/place-type-enum';
import { getCustomByPlaceType } from 'src/commons/helpers/custom-by-place-type.helper';
import { getPlaceTypeKey } from 'src/commons/helpers/place-type.helper';
import { isEmpty, isNotEmpty } from 'src/commons/util/is/is-empty';
import { CommunityQueryRepository } from 'src/community/community.query.repository';
import { CourseQueryRepository } from 'src/course/course.query.repository';
import { ApiCourseGetDetailResponseDto } from 'src/course/dto/api-course-get-detail-response.dto';
import { ApiCourseGetMyHistoryRequestQueryDto } from 'src/course/dto/api-course-get-my-history-request-query.dto';
import { ApiCourseGetMyHistoryResponseDto } from 'src/course/dto/api-course-get-my-history-response.dto';
import { ApiCourseGetPlaceListResponseDto } from 'src/course/dto/api-course-get-place-list-response.dto';
import { ApiCoursePostRecommendSaveRequestBodyDto } from 'src/course/dto/api-course-post-recommend-save-request-body.dto';
import { ApiCoursePostRecommendSaveResponseDto } from 'src/course/dto/api-course-post-recommend-save-response.dto';
import { ApiCoursePostSaveResponseDto } from 'src/course/dto/api-course-post-save-response.dto';
import { CoursePlaceDetailDto } from 'src/course/dto/course-place-detail.dto';
import { CoursePlaceInfoDto } from 'src/course/dto/course-place-info.dto';
import { CourseDetailEntity } from 'src/entities/course.detail.entity';
import { CourseEntity } from 'src/entities/course.entity';
import { SubwayQueryRepository } from 'src/subway/subway.query.repository';
import { ThemeQueryRepository } from 'src/theme/theme.query.repository';
import { UserDto } from 'src/user/dto/user.dto';
import { UserQueryRepository } from 'src/user/user.query.repository';
import { DataSource } from 'typeorm';
@Injectable()
export class CourseService {
constructor(
private readonly courseQueryRepository: CourseQueryRepository,
private readonly subwayQueryRepository: SubwayQueryRepository,
private readonly userQueryRepository: UserQueryRepository,
private readonly bookmarkQueryRepository: BookmarkQueryRepository,
private readonly communityQueryRepository: CommunityQueryRepository,
private readonly themeQueryRepository: ThemeQueryRepository,
private readonly dataSource: DataSource,
) {}
async saveCourseRecommend(
dto: ApiCoursePostRecommendSaveRequestBodyDto,
user: UserDto,
): Promise<ApiCoursePostSaveResponseDto> {
const course: CourseEntity = await this.courseQueryRepository.findCourse(dto.course_uuid);
if (isNotEmpty(course)) {
throw new ConflictException(ERROR.DUPLICATION);
}
const subwayWithLines = await this.subwayQueryRepository.findAllLinesForStation(
dto.station_uuid,
);
if (isEmpty(subwayWithLines)) {
throw new NotFoundException(ERROR.NOT_EXIST_DATA);
}
const theme = isNotEmpty(dto.theme_uuid)
? await this.themeQueryRepository.findThemeUuid(dto.theme_uuid)
: null;
/** 비회원일 경우 geust로 저장 */
const { uuid: userUuid = null, nickname: userName = 'guest' } = user ?? {};
const apiCoursePostRecommendSaveResponseDto = new ApiCoursePostRecommendSaveResponseDto({
uuid: dto.course_uuid,
subway: subwayWithLines[0].name,
line: subwayWithLines.map((sub) => sub.line),
theme: theme?.theme_name ?? null,
course_name: dto.course_name,
count: dto.places.length,
place: dto.places,
});
const queryRunner = this.dataSource.createQueryRunner();
await queryRunner.connect();
await queryRunner.startTransaction();
try {
const courseEntity = new CourseEntity();
courseEntity.uuid = apiCoursePostRecommendSaveResponseDto.uuid;
courseEntity.line = apiCoursePostRecommendSaveResponseDto.line.join(', ');
courseEntity.subway = subwayWithLines[0].name;
courseEntity.course_name = dto.course_name;
courseEntity.user_uuid = userUuid;
courseEntity.user_name = userName;
courseEntity.count = dto.places.length;
courseEntity.theme = theme?.theme_name ?? null;
courseEntity.customs = dto.places.map((place) => PLACE_TYPE[place.place_type]).join(', ');
await queryRunner.manager.save(CourseEntity, courseEntity);
const courseDetailEntity = apiCoursePostRecommendSaveResponseDto.place.map((place) => {
const courseDetail = new CourseDetailEntity();
courseDetail.course_uuid = apiCoursePostRecommendSaveResponseDto.uuid;
courseDetail.sort = place.sort;
courseDetail.place_uuid = place.uuid;
courseDetail.place_name = place.place_name;
courseDetail.place_type = PLACE_TYPE[place.place_type];
return courseDetail;
});
await queryRunner.manager.save(CourseDetailEntity, courseDetailEntity);
await queryRunner.commitTransaction();
return { uuid: apiCoursePostRecommendSaveResponseDto.uuid };
} catch (e) {
await queryRunner.rollbackTransaction();
blancLogger.error('Error in saveCourseRecommend', { moduleName: 'CourseService' });
throw e;
} finally {
await queryRunner.release();
}
}
async getCourseDetail(uuid: string, user: UserDto): Promise<ApiCourseGetDetailResponseDto> {
const userInfo = isEmpty(user)
? { uuid: '', id: null, nickname: null, profile_image: null }
: user;
/** Promise.all()로 병렬 처리 */
const [course, bookmark, community, coursePlaces] = await Promise.all([
this.courseQueryRepository.findOne(uuid),
this.bookmarkQueryRepository.findUserBookmark(userInfo, uuid),
this.communityQueryRepository.findCommunityByCourse(uuid, userInfo),
this.courseQueryRepository.findPlace(uuid),
]);
if (isEmpty(course)) {
throw new NotFoundException(ERROR.NOT_EXIST_DATA);
}
const subwayStation = await this.subwayQueryRepository.findSubwayStationName(course.subway);
const subway = await this.subwayQueryRepository.findSubway(subwayStation.name);
const theme = isNotEmpty(course.theme)
? await this.themeQueryRepository.findThemeName(course.theme)
: null;
const placeDtos = coursePlaces.map((place) => {
return plainToInstance(
CoursePlaceInfoDto,
{
...place.place,
sort: place.sort,
uuid: place.place_uuid,
place_type: getPlaceTypeKey(place.place_type),
place_detail: getCustomByPlaceType(place.place, place.place_type),
},
{ excludeExtraneousValues: true },
);
});
return new ApiCourseGetDetailResponseDto({
course_uuid: uuid,
course_name: course.course_name,
subway: {
uuid: subwayStation.uuid,
station: subwayStation.name,
},
line: subway.map((subwayLine) => ({
uuid: subwayLine.line_uuid,
line: subwayLine.line,
})),
theme: theme
? {
uuid: theme.uuid,
theme: theme.theme_name,
}
: undefined,
customs: course.customs,
is_bookmarked: isNotEmpty(bookmark),
is_posted: isNotEmpty(community),
created_at: course.created_at,
places: placeDtos,
});
}
async getMyCourseHistory(
dto: ApiCourseGetMyHistoryRequestQueryDto,
user: UserDto,
): Promise<LastItemIdResponseDto<ApiCourseGetMyHistoryResponseDto>> {
const courseList: CourseEntity[] = await this.courseQueryRepository.findMyCourse(dto, user);
if (courseList.length === 0) {
return { items: [], last_item_id: 0 };
}
const [userList, postedCourses = []] = await Promise.all([
this.userQueryRepository.findUserList(courseList.map((item) => item.user_uuid)),
this.communityQueryRepository.findExistingCourse(courseList.map((item) => item.uuid)),
]);
const lastItemId = courseList.length === dto.size ? courseList[courseList.length - 1].id : 0;
return {
items: plainToInstance(ApiCourseGetMyHistoryResponseDto, courseList, {
excludeExtraneousValues: true,
}).map((myHistory) => {
const communityMeta = postedCourses.find((c) => c.course_uuid === myHistory.course_uuid);
return {
...myHistory,
user_profile_image:
userList.find((u) => u.uuid === myHistory.user_uuid)?.profile_image ?? null,
is_posted: !!communityMeta,
community_uuid: communityMeta?.community_uuid ?? null,
score: communityMeta?.score ?? '0.0',
like_count: communityMeta?.like_count ?? 0,
};
}),
last_item_id: lastItemId,
};
}
async getCoursePlaceList(uuid): Promise<ApiCourseGetPlaceListResponseDto> {
const course = await this.courseQueryRepository.findOne(uuid);
if (!course) {
throw new NotFoundException(ERROR.NOT_EXIST_DATA);
}
const coursePlaces = await this.courseQueryRepository.findPlace(uuid);
return new ApiCourseGetPlaceListResponseDto({
course_uuid: uuid,
course_name: course.course_name,
place: plainToInstance(
CoursePlaceDetailDto,
coursePlaces.map((coursePlace) => ({
...coursePlace.place,
sort: coursePlace.sort,
uuid: coursePlace.place_uuid,
})),
{
excludeExtraneousValues: true,
},
),
});
}
}
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