parameters:
  - name: id
    in: path
    required: true
    description: Department primary key.
    schema:
      type: string
      format: uuid
    example: 77777777-7777-4777-8777-777777777777
get:
  tags: [Master data]
  summary: Get a department
  description: Returns one department by id.
  operationId: get-api-departments-id
  responses:
    "200":
      description: Department.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Department
    "400":
      description: Invalid id.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error
    "401":
      description: Missing session.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error
    "404":
      description: Department not found.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error
patch:
  tags: [Master data]
  summary: Update a department
  description: Admin-only patch. Requires admin:settings.
  operationId: patch-api-departments-id
  requestBody:
    required: true
    content:
      application/json:
        schema:
          type: object
          properties:
            code:
              type: string
              example: OPS
            name:
              type: string
              example: Operations
  responses:
    "200":
      description: Updated department.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Department
    "400":
      description: Validation failed.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error
    "403":
      description: Caller lacks admin:settings.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error
    "404":
      description: Department not found.
      content:
        application/json:
          schema:
            $ref: ../components/schemas.yaml#/Error