openapi: 3.0.0
info:
  title: CBT API
  version: 1.0.0
  description: ClickHouse Build Tool API for managing transformation models
servers:
  - url: http://localhost:8080/api/v1

paths:
  /models:
    get:
      summary: List all models
      operationId: getModels
      parameters:
        - name: type
          in: query
          schema:
            type: string
            enum: [transformation, external]
        - name: database
          in: query
          schema:
            type: string
      responses:
        '200':
          description: List of models
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelsResponse'

  /models/{model_id}:
    get:
      summary: Get model by ID
      operationId: getModelByID
      parameters:
        - name: model_id
          in: path
          required: true
          schema:
            type: string
          example: "default.users"
      responses:
        '200':
          description: Model details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ModelDetail'
        '404':
          $ref: '#/components/responses/NotFound'

components:
  schemas:
    ModelsResponse:
      type: object
      required: [models, total]
      properties:
        models:
          type: array
          items:
            $ref: '#/components/schemas/ModelDetail'
        total:
          type: integer

    ModelDetail:
      type: object
      required: [id, type, database, table, config]
      properties:
        id:
          type: string
        type:
          type: string
        database:
          type: string
        table:
          type: string
        config:
          type: object
          additionalProperties: true
        dependencies:
          type: array
          items:
            type: string
        dependents:
          type: array
          items:
            type: string

    Error:
      type: object
      required: [error, code]
      properties:
        error:
          type: string
        code:
          type: integer

  responses:
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    InternalError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'