openapi: 3.0.3
info:
  title: Proxmox Image Conversion Engine
  description: |
    Backend API that runs on the Proxmox host (`srv2`) to convert VMware images
    (VMDK, VHD, etc.) to Proxmox‑compatible QCOW2, optionally shrink the disk,
    and provision a VM with automatic boot‑type detection.
  version: 1.1.0
  contact:
    name: Support
    url: https://github.com/your-org/converter

servers:
  - url: http://10.2.0.2:9000/api/v1
    description: Internal Proxmox host (srv2)

paths:
  /jobs:
    post:
      summary: Submit a new VM conversion and creation job
      operationId: createJob
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/JobSubmissionRequest'
      responses:
        '202':
          description: Job accepted and queued for processing
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JobStatusResponse'
        '400':
          description: Invalid request or source file not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'

  /jobs/{job_id}:
    get:
      summary: Get the current status of a conversion job
      operationId: getJobStatus
      parameters:
        - name: job_id
          in: path
          required: true
          schema:
            type: string
          example: "job_10007_1784637888"
      responses:
        '200':
          description: Job status details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JobStatusResponse'
        '404':
          description: Job not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'

  /jobs/{job_id}/cleanup:
    post:
      summary: Delete staging files or preserve them for reuse
      operationId: cleanupJob
      parameters:
        - name: job_id
          in: path
          required: true
          schema:
            type: string
          example: "job_10007_1784637888"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CleanupRequest'
      responses:
        '200':
          description: Cleanup action performed
          content:
            application/json:
              schema:
                type: object
                properties:
                  job_id:
                    type: string
                  action_taken:
                    type: string
                    enum: [purged, retained]
                  message:
                    type: string

  /health:
    get:
      summary: Health check endpoint
      operationId: healthCheck
      responses:
        '200':
          description: Service is healthy
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: string
                    example: ok

components:
  schemas:
    DiskSpec:
      type: object
      required:
        - disk_type
      properties:
        disk_type:
          type: string
          enum: [image_file, empty_disk]
          description: |
            `image_file` – convert an existing file from `source_filename`.
            `empty_disk` – create a blank disk of the given `size_gb`.
        source_filename:
          type: string
          nullable: true
          description: Path relative to `/mnt/converter/in` (required if `disk_type=image_file`)
          example: "64bit/Debian 12.11.0 (64bit).vmdk"
        size_gb:
          type: integer
          nullable: true
          description: Size in GiB (required if `disk_type=empty_disk`)
          example: 50
        format:
          type: string
          enum: [qcow2, raw, vmdk]
          default: qcow2
          description: Source image format (for `image_file`)

    JobSubmissionRequest:
      type: object
      required:
        - vmid
        - vm_name
        - boot_disk
      properties:
        vmid:
          type: integer
          description: Proxmox VM ID (must be unique on host)
          example: 10007
        vm_name:
          type: string
          description: Display name for the VM
          example: "debian-default-shrink"
        boot_type:
          type: string
          enum: [uefi, legacy]
          default: uefi
          description: Boot firmware type (ignored if `auto_detect_boot=true`)
        auto_detect_boot:
          type: boolean
          default: true
          description: |
            If `true`, automatically detects whether the disk is EFI‑bootable and
            overrides `boot_type`. Falls back to `legacy` if detection fails.
        cpu_cores:
          type: integer
          default: 4
          minimum: 1
          example: 2
        ram_mb:
          type: integer
          default: 8192
          minimum: 512
          example: 4096
        target_storage:
          type: string
          default: "local-lvm"
          description: Proxmox storage pool for the VM disks
          example: "local-lvm"
        boot_disk:
          $ref: '#/components/schemas/DiskSpec'
        additional_disks:
          type: array
          items:
            $ref: '#/components/schemas/DiskSpec'
          description: Additional data disks (converted or empty)
        target_disk_size_gb:
          type: integer
          nullable: true
          description: |
            If provided, the boot disk (and only the boot disk) is resized to this
            size (GiB). If omitted and the boot disk is larger than 30 GiB, it is
            automatically shrunk to 30 GiB. Only shrinks when disk_type=image_file.
          example: 40

    JobStatusResponse:
      type: object
      properties:
        job_id:
          type: string
          example: "job_10007_1784637888"
        vmid:
          type: integer
          example: 10007
        status:
          type: string
          enum: [queued, processing_conversion, importing_storage, completed, failed]
          description: Current job phase
        progress_percentage:
          type: integer
          minimum: 0
          maximum: 100
          example: 75
        message:
          type: string
          description: Human‑readable status message
          example: "Creating VM and importing disks..."
        error_details:
          type: string
          nullable: true
          description: If status is `failed`, contains the error reason

    CleanupRequest:
      type: object
      required:
        - delete_staging_files
      properties:
        delete_staging_files:
          type: boolean
          description: |
            `true`  – delete extracted source files and converted disk images.
            `false` – keep files so another VM can be created from the same source.

    ErrorResponse:
      type: object
      properties:
        detail:
          type: string
          example: "Source file not found: 64bit/Debian 12.11.0 (64bit).vmdk"