openapi: 3.0.0
info:
  title: Pet Store API
  description: A sample API for managing pets in a store
  version: 1.0.0
servers:
  - url: https://api.petstore.example.com/v1
    description: Production server
  - url: http://localhost:4010
    description: Mock server for testing
tags:
  - name: pets
    description: Operations on pets
  - name: store
    description: Store management operations
  - name: users
    description: User management operations

paths:
  /pets:
    get:
      summary: List all pets
      description: Returns a list of pets with optional filtering
      operationId: listPets
      tags:
        - pets
      parameters:
        - name: status
          in: query
          description: Filter pets by status
          schema:
            type: string
            enum:
              - available
              - pending
              - sold
        - name: limit
          in: query
          description: Maximum number of pets to return
          schema:
            type: integer
            default: 20
        - name: offset
          in: query
          description: Number of pets to skip
          schema:
            type: integer
            default: 0
      responses:
        '200':
          description: A list of pets
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Pet'
    post:
      summary: Create a new pet
      description: Creates a new pet in the store
      operationId: createPet
      tags:
        - pets
      security:
        - BearerAuth: []
        - ApiKeyAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PetInput'
      responses:
        '201':
          description: Pet created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Pet'
        '400':
          description: Invalid input
  /pets/{petId}:
    get:
      summary: Get a pet by ID
      description: Returns a single pet by its ID
      operationId: getPetById
      tags:
        - pets
      parameters:
        - name: petId
          in: path
          description: ID of the pet to retrieve
          required: true
          schema:
            type: string
      responses:
        '200':
          description: A single pet
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Pet'
        '404':
          description: Pet not found
    put:
      summary: Update a pet
      description: Updates an existing pet in the store
      operationId: updatePet
      tags:
        - pets
      security:
        - BearerAuth: []
      parameters:
        - name: petId
          in: path
          description: ID of the pet to update
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PetInput'
      responses:
        '200':
          description: Pet updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Pet'
        '404':
          description: Pet not found
    delete:
      summary: Delete a pet
      description: Deletes a pet from the store
      operationId: deletePet
      tags:
        - pets
      security:
        - ApiKeyAuth: []
      parameters:
        - name: petId
          in: path
          description: ID of the pet to delete
          required: true
          schema:
            type: string
      responses:
        '204':
          description: Pet deleted successfully
        '404':
          description: Pet not found
  /store/inventory:
    get:
      summary: Get store inventory
      description: Returns pet inventory by status
      operationId: getInventory
      tags:
        - store
      security:
        - ApiKeyAuth: []
      responses:
        '200':
          description: Inventory counts by status
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: integer
  /users:
    get:
      summary: List all users
      description: Returns a list of users
      operationId: listUsers
      tags:
        - users
      responses:
        '200':
          description: A list of users
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/User'
    post:
      summary: Create a user
      description: Creates a new user
      operationId: createUser
      tags:
        - users
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UserInput'
      responses:
        '201':
          description: User created successfully

components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      name: X-API-Key
      in: header
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
  schemas:
    Pet:
      type: object
      required:
        - name
        - status
      properties:
        id:
          type: string
          format: uuid
          description: Unique identifier
        name:
          type: string
          description: Name of the pet
        status:
          type: string
          enum:
            - available
            - pending
            - sold
          description: Status of the pet
        tags:
          type: array
          items:
            type: string
          description: Tags associated with the pet
        photoUrls:
          type: array
          items:
            type: string
            format: uri
          description: URLs of pet photos
    PetInput:
      type: object
      required:
        - name
        - status
      properties:
        name:
          type: string
          description: Name of the pet
        status:
          type: string
          enum:
            - available
            - pending
            - sold
          description: Status of the pet
        tags:
          type: array
          items:
            type: string
    User:
      type: object
      properties:
        id:
          type: string
          format: uuid
        username:
          type: string
          description: Unique username
        email:
          type: string
          format: email
        firstName:
          type: string
        lastName:
          type: string
    UserInput:
      type: object
      required:
        - username
        - email
      properties:
        username:
          type: string
        email:
          type: string
          format: email
        firstName:
          type: string
        lastName:
          type: string