openapi: 3.0.3
info:
  title: Lunch MiniApp API
  version: 0.1.0
  description: |
    직장인 점심 추천 미니앱 MVP API
servers:
  - url: https://api.example.com

tags:
  - name: Health
  - name: Restaurants
  - name: Reviews
  - name: Likes
  - name: Users

paths:
  /v1/health:
    get:
      tags: [Health]
      summary: 헬스 체크
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: string
                    example: ok

  /v1/restaurants/nearby:
    get:
      tags: [Restaurants]
      summary: 주변 식당 목록 조회
      parameters:
        - in: query
          name: lat
          required: true
          schema:
            type: number
            format: double
        - in: query
          name: lng
          required: true
          schema:
            type: number
            format: double
        - in: query
          name: radiusMeters
          required: false
          schema:
            type: integer
            default: 1000
            enum: [500, 1000, 2000]
        - in: query
          name: category
          required: false
          schema:
            $ref: '#/components/schemas/RestaurantCategory'
        - in: query
          name: sort
          required: false
          schema:
            type: string
            enum: [distance, rating, likes]
            default: distance
        - in: query
          name: cursor
          required: false
          schema:
            type: string
        - in: query
          name: size
          required: false
          schema:
            type: integer
            minimum: 1
            maximum: 50
            default: 20
      responses:
        '200':
          description: 조회 성공
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      $ref: '#/components/schemas/RestaurantListItem'
                  nextCursor:
                    type: string
                    nullable: true

  /v1/restaurants/{restaurantId}:
    get:
      tags: [Restaurants]
      summary: 식당 상세 조회
      parameters:
        - in: path
          name: restaurantId
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: 조회 성공
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RestaurantDetail'
        '404':
          description: 식당 없음

  /v1/restaurants/{restaurantId}/reviews:
    get:
      tags: [Reviews]
      summary: 식당 리뷰 목록 조회
      parameters:
        - in: path
          name: restaurantId
          required: true
          schema:
            type: string
            format: uuid
        - in: query
          name: cursor
          required: false
          schema:
            type: string
        - in: query
          name: size
          required: false
          schema:
            type: integer
            default: 20
            minimum: 1
            maximum: 50
      responses:
        '200':
          description: 조회 성공
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      $ref: '#/components/schemas/ReviewItem'
                  nextCursor:
                    type: string
                    nullable: true

    post:
      tags: [Reviews]
      summary: 리뷰 작성 또는 수정(upsert)
      parameters:
        - in: path
          name: restaurantId
          required: true
          schema:
            type: string
            format: uuid
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ReviewUpsertRequest'
      responses:
        '200':
          description: 저장 성공
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ReviewItem'
        '400':
          description: 유효성 오류
        '401':
          description: 인증 필요

  /v1/reviews/{reviewId}:
    delete:
      tags: [Reviews]
      summary: 리뷰 삭제
      parameters:
        - in: path
          name: reviewId
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '204':
          description: 삭제 성공
        '401':
          description: 인증 필요
        '403':
          description: 본인 리뷰만 삭제 가능

  /v1/restaurants/{restaurantId}/like:
    post:
      tags: [Likes]
      summary: 좋아요 토글
      parameters:
        - in: path
          name: restaurantId
          required: true
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: 토글 성공
          content:
            application/json:
              schema:
                type: object
                properties:
                  liked:
                    type: boolean
                  likeCount:
                    type: integer

  /v1/users/me/reviews:
    get:
      tags: [Users]
      summary: 내 리뷰 목록
      parameters:
        - in: query
          name: cursor
          schema:
            type: string
        - in: query
          name: size
          schema:
            type: integer
            default: 20
            minimum: 1
            maximum: 50
      responses:
        '200':
          description: 조회 성공
          content:
            application/json:
              schema:
                type: object
                properties:
                  items:
                    type: array
                    items:
                      $ref: '#/components/schemas/ReviewItem'
                  nextCursor:
                    type: string
                    nullable: true

components:
  schemas:
    RestaurantCategory:
      type: string
      enum:
        - KOREAN
        - CHINESE
        - JAPANESE
        - WESTERN
        - OTHER

    RestaurantListItem:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        category:
          $ref: '#/components/schemas/RestaurantCategory'
        distanceMeters:
          type: integer
        averageRating:
          type: number
          format: float
        reviewCount:
          type: integer
        likeCount:
          type: integer
        likedByMe:
          type: boolean
      required: [id, name, category, distanceMeters, averageRating, reviewCount, likeCount, likedByMe]

    RestaurantDetail:
      allOf:
        - $ref: '#/components/schemas/RestaurantListItem'
        - type: object
          properties:
            address:
              type: string
            phone:
              type: string
              nullable: true
            openingHours:
              type: string
              nullable: true
            lat:
              type: number
              format: double
            lng:
              type: number
              format: double

    ReviewUpsertRequest:
      type: object
      properties:
        rating:
          type: integer
          minimum: 1
          maximum: 5
        content:
          type: string
          minLength: 1
          maxLength: 500
      required: [rating, content]

    ReviewItem:
      type: object
      properties:
        id:
          type: string
          format: uuid
        restaurantId:
          type: string
          format: uuid
        userId:
          type: string
          format: uuid
        nickName:
          type: string
        rating:
          type: integer
        content:
          type: string
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        mine:
          type: boolean
      required: [id, restaurantId, userId, nickName, rating, content, createdAt, updatedAt, mine]