openapi: 3.1.0
info:
  title: Api
  version: 0.1.0
  description: RAQIM — Document to Markdown conversion platform API
servers:
  - url: /api
    description: Base API path
tags:
  - name: health
    description: Health operations
  - name: auth
    description: Authentication operations
  - name: files
    description: File management
  - name: folders
    description: Folder management
  - name: convert
    description: Document conversion
  - name: shares
    description: File sharing
  - name: admin
    description: Admin operations
  - name: export
    description: File export

paths:
  /healthz:
    get:
      operationId: healthCheck
      tags: [health]
      summary: Health check
      responses:
        "200":
          description: Healthy
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/HealthStatus"

  # ─── AUTH ───────────────────────────────────────────────
  /auth/register:
    post:
      operationId: registerUser
      tags: [auth]
      summary: Submit a join request (creates pending account)
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/RegisterBody"
      responses:
        "201":
          description: Join request submitted
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"
        "409":
          description: Email already in use
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorResponse"

  /auth/login:
    post:
      operationId: loginUser
      tags: [auth]
      summary: Login with email and password
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/LoginBody"
      responses:
        "200":
          description: Login successful
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/AuthResponse"
        "401":
          description: Invalid credentials or account not approved
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorResponse"

  /auth/logout:
    post:
      operationId: logoutUser
      tags: [auth]
      summary: Logout and invalidate refresh token
      responses:
        "200":
          description: Logged out
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /auth/refresh:
    post:
      operationId: refreshToken
      tags: [auth]
      summary: Refresh access token
      responses:
        "200":
          description: New access token
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/AuthResponse"
        "401":
          description: Invalid or expired refresh token
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorResponse"

  /auth/me:
    get:
      operationId: getCurrentUser
      tags: [auth]
      summary: Get current authenticated user
      responses:
        "200":
          description: Current user info
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/User"
        "401":
          description: Not authenticated
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorResponse"

  /auth/forgot-password:
    post:
      operationId: forgotPassword
      tags: [auth]
      summary: Request password reset email
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ForgotPasswordBody"
      responses:
        "200":
          description: Reset email sent if account exists
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /auth/reset-password:
    post:
      operationId: resetPassword
      tags: [auth]
      summary: Reset password using token
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ResetPasswordBody"
      responses:
        "200":
          description: Password reset successfully
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"
        "400":
          description: Invalid or expired token
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorResponse"

  # ─── FOLDERS ────────────────────────────────────────────
  /folders:
    get:
      operationId: listFolders
      tags: [folders]
      summary: List folders for current user
      parameters:
        - in: query
          name: parentId
          schema:
            type: string
          description: Parent folder ID (null for root)
      responses:
        "200":
          description: List of folders
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/Folder"
    post:
      operationId: createFolder
      tags: [folders]
      summary: Create a new folder
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/CreateFolderBody"
      responses:
        "201":
          description: Folder created
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Folder"

  /folders/{id}:
    patch:
      operationId: updateFolder
      tags: [folders]
      summary: Rename or move a folder
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/UpdateFolderBody"
      responses:
        "200":
          description: Folder updated
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Folder"
    delete:
      operationId: deleteFolder
      tags: [folders]
      summary: Move folder to trash
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: Folder moved to trash
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  # ─── FILES ──────────────────────────────────────────────
  /files:
    get:
      operationId: listFiles
      tags: [files]
      summary: List files for current user
      parameters:
        - in: query
          name: folderId
          schema:
            type: string
          description: Folder ID (null for root)
        - in: query
          name: search
          schema:
            type: string
          description: Search by name
        - in: query
          name: trashed
          schema:
            type: boolean
          description: Show trashed files
        - in: query
          name: shared
          schema:
            type: boolean
          description: Show files shared with me
      responses:
        "200":
          description: List of files
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/FileItem"

  /files/{id}:
    get:
      operationId: getFile
      tags: [files]
      summary: Get file metadata
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: File metadata
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/FileItem"
    patch:
      operationId: updateFile
      tags: [files]
      summary: Rename or move a file
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/UpdateFileBody"
      responses:
        "200":
          description: File updated
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/FileItem"
    delete:
      operationId: deleteFile
      tags: [files]
      summary: Move file to trash
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: File moved to trash
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /files/{id}/content:
    get:
      operationId: getFileContent
      tags: [files]
      summary: Get file markdown content
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: File content
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/FileContent"
    put:
      operationId: updateFileContent
      tags: [files]
      summary: Update file markdown content (auto-save)
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/UpdateContentBody"
      responses:
        "200":
          description: Content saved
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /files/{id}/restore:
    post:
      operationId: restoreFile
      tags: [files]
      summary: Restore file from trash
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: File restored
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /files/{id}/export:
    post:
      operationId: exportFile
      tags: [export]
      summary: Export file as DOCX or PDF
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ExportBody"
      responses:
        "200":
          description: Export URL
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ExportResponse"

  # ─── CONVERSION ─────────────────────────────────────────
  /convert:
    post:
      operationId: startConversion
      tags: [convert]
      summary: Start document conversion job
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/StartConversionBody"
      responses:
        "202":
          description: Conversion job started
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ConversionJob"

  /convert/{jobId}:
    get:
      operationId: getConversionStatus
      tags: [convert]
      summary: Get conversion job status and progress
      parameters:
        - in: path
          name: jobId
          required: true
          schema:
            type: string
      responses:
        "200":
          description: Job status
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ConversionJob"

  /convert/upload:
    post:
      operationId: uploadAndConvert
      tags: [convert]
      summary: Upload file and start conversion
      responses:
        "202":
          description: Upload accepted and conversion started
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ConversionJob"

  # ─── SHARES ─────────────────────────────────────────────
  /shares:
    get:
      operationId: listShares
      tags: [shares]
      summary: List shares for current user (owned + shared with me)
      responses:
        "200":
          description: List of shares
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/Share"
    post:
      operationId: createShare
      tags: [shares]
      summary: Share a file or folder with a user
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/CreateShareBody"
      responses:
        "201":
          description: Share created
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Share"

  /shares/{id}:
    patch:
      operationId: updateShare
      tags: [shares]
      summary: Update share permission
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/UpdateShareBody"
      responses:
        "200":
          description: Share updated
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Share"
    delete:
      operationId: deleteShare
      tags: [shares]
      summary: Remove a share
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: Share removed
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /shares/search-users:
    get:
      operationId: searchUsersForSharing
      tags: [shares]
      summary: Search users by email or username for sharing
      parameters:
        - in: query
          name: q
          required: true
          schema:
            type: string
      responses:
        "200":
          description: Matching users
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/UserSummary"

  # ─── ADMIN ──────────────────────────────────────────────
  /admin/users:
    get:
      operationId: adminListUsers
      tags: [admin]
      summary: List all users
      parameters:
        - in: query
          name: status
          schema:
            type: string
            enum: [active, suspended, pending]
        - in: query
          name: role
          schema:
            type: string
            enum: [user, admin]
        - in: query
          name: search
          schema:
            type: string
      responses:
        "200":
          description: List of users
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/AdminUser"
    post:
      operationId: adminCreateUser
      tags: [admin]
      summary: Admin creates user directly (active status)
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/AdminCreateUserBody"
      responses:
        "201":
          description: User created
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/AdminUser"

  /admin/users/{id}:
    patch:
      operationId: adminUpdateUser
      tags: [admin]
      summary: Update user role or status
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/AdminUpdateUserBody"
      responses:
        "200":
          description: User updated
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/AdminUser"
    delete:
      operationId: adminDeleteUser
      tags: [admin]
      summary: Permanently delete a user
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      responses:
        "200":
          description: User deleted
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /admin/join-requests:
    get:
      operationId: listJoinRequests
      tags: [admin]
      summary: List pending join requests
      responses:
        "200":
          description: List of join requests
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: "#/components/schemas/JoinRequest"

  /admin/join-requests/{id}:
    patch:
      operationId: processJoinRequest
      tags: [admin]
      summary: Approve or reject a join request
      parameters:
        - in: path
          name: id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ProcessJoinRequestBody"
      responses:
        "200":
          description: Request processed
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /admin/stats:
    get:
      operationId: getAdminStats
      tags: [admin]
      summary: Get platform statistics
      responses:
        "200":
          description: Platform stats
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/PlatformStats"

  /trash:
    get:
      operationId: listUserTrash
      tags: [files]
      summary: List trashed files and folders for current user
      responses:
        "200":
          description: Trashed items
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/TrashItems"

  /trash/empty:
    delete:
      operationId: emptyUserTrash
      tags: [files]
      summary: Permanently delete all current user's trashed items
      responses:
        "200":
          description: Trash emptied
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

  /admin/trash:
    get:
      operationId: adminListTrash
      tags: [admin]
      summary: List ALL users' trashed files/folders (admin only)
      responses:
        "200":
          description: Trashed items
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/TrashItems"

  /admin/trash/empty:
    delete:
      operationId: adminEmptyTrash
      tags: [admin]
      summary: Permanently delete all trashed items for current admin user
      responses:
        "200":
          description: Trash emptied
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MessageResponse"

components:
  schemas:
    HealthStatus:
      type: object
      properties:
        status:
          type: string
      required: [status]

    MessageResponse:
      type: object
      properties:
        message:
          type: string
      required: [message]

    ErrorResponse:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
      required: [error, message]

    # AUTH
    RegisterBody:
      type: object
      properties:
        email:
          type: string
          format: email
        password:
          type: string
        displayName:
          type: string
      required: [email, password]

    LoginBody:
      type: object
      properties:
        email:
          type: string
          format: email
        password:
          type: string
      required: [email, password]

    ForgotPasswordBody:
      type: object
      properties:
        email:
          type: string
          format: email
      required: [email]

    ResetPasswordBody:
      type: object
      properties:
        token:
          type: string
        password:
          type: string
      required: [token, password]

    AuthResponse:
      type: object
      properties:
        accessToken:
          type: string
        user:
          $ref: "#/components/schemas/User"
      required: [accessToken, user]

    User:
      type: object
      properties:
        id:
          type: string
        email:
          type: string
        displayName:
          type: string
        role:
          type: string
          enum: [user, admin]
        status:
          type: string
          enum: [pending, active, suspended]
        createdAt:
          type: string
          format: date-time
      required: [id, email, role, status, createdAt]

    UserSummary:
      type: object
      properties:
        id:
          type: string
        email:
          type: string
        displayName:
          type: string
      required: [id, email]

    # FOLDERS
    Folder:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        parentId:
          type: string
          nullable: true
        ownerId:
          type: string
        fileCount:
          type: integer
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
      required: [id, name, ownerId, fileCount, createdAt, updatedAt]

    CreateFolderBody:
      type: object
      properties:
        name:
          type: string
        parentId:
          type: string
          nullable: true
      required: [name]

    UpdateFolderBody:
      type: object
      properties:
        name:
          type: string
        parentId:
          type: string
          nullable: true

    # FILES
    FileItem:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        folderId:
          type: string
          nullable: true
        ownerId:
          type: string
        originalName:
          type: string
        originalType:
          type: string
        sizeBytes:
          type: integer
        status:
          type: string
          enum: [uploading, queued, processing, done, failed, trashed]
        qualityScore:
          type: number
          nullable: true
        wordCount:
          type: integer
          nullable: true
        language:
          type: string
          nullable: true
        isShared:
          type: boolean
        sharedWith:
          type: array
          items:
            $ref: "#/components/schemas/UserSummary"
        permission:
          type: string
          enum: [owner, read, edit, full]
          nullable: true
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
      required: [id, name, ownerId, originalName, originalType, sizeBytes, status, isShared, createdAt, updatedAt]

    UpdateFileBody:
      type: object
      properties:
        name:
          type: string
        folderId:
          type: string
          nullable: true

    FileContent:
      type: object
      properties:
        id:
          type: string
        markdownContent:
          type: string
        originalMarkdown:
          type: string
        updatedAt:
          type: string
          format: date-time
      required: [id, markdownContent, originalMarkdown, updatedAt]

    UpdateContentBody:
      type: object
      properties:
        markdownContent:
          type: string
      required: [markdownContent]

    ExportBody:
      type: object
      properties:
        format:
          type: string
          enum: [md, docx, pdf, print]
        fileName:
          type: string
      required: [format]

    ExportResponse:
      type: object
      properties:
        downloadUrl:
          type: string
        fileName:
          type: string
        format:
          type: string
      required: [downloadUrl, fileName, format]

    # CONVERSION
    StartConversionBody:
      type: object
      properties:
        fileId:
          type: string
        pageStart:
          type: integer
          nullable: true
        pageEnd:
          type: integer
          nullable: true
      required: [fileId]

    ConversionJob:
      type: object
      properties:
        jobId:
          type: string
        fileId:
          type: string
        status:
          type: string
          enum: [queued, analyzing, routing, ocr, layout, scoring, merging, cleanup, done, failed]
        progress:
          type: integer
          description: 0-100
        steps:
          type: array
          items:
            $ref: "#/components/schemas/ConversionStep"
        queuePosition:
          type: integer
          nullable: true
        elapsedSeconds:
          type: integer
          nullable: true
        estimatedSeconds:
          type: integer
          nullable: true
        errorMessage:
          type: string
          nullable: true
        createdAt:
          type: string
          format: date-time
      required: [jobId, fileId, status, progress, steps, createdAt]

    ConversionStep:
      type: object
      properties:
        name:
          type: string
        status:
          type: string
          enum: [pending, running, done, failed]
        label:
          type: string
      required: [name, status, label]

    # SHARES
    Share:
      type: object
      properties:
        id:
          type: string
        fileId:
          type: string
          nullable: true
        folderId:
          type: string
          nullable: true
        ownerId:
          type: string
        sharedWithId:
          type: string
        permission:
          type: string
          enum: [read, edit, full]
        fileName:
          type: string
          nullable: true
        folderName:
          type: string
          nullable: true
        ownerEmail:
          type: string
        sharedWithEmail:
          type: string
        createdAt:
          type: string
          format: date-time
      required: [id, ownerId, sharedWithId, permission, ownerEmail, sharedWithEmail, createdAt]

    CreateShareBody:
      type: object
      properties:
        fileId:
          type: string
          nullable: true
        folderId:
          type: string
          nullable: true
        sharedWithId:
          type: string
        permission:
          type: string
          enum: [read, edit, full]
      required: [sharedWithId, permission]

    UpdateShareBody:
      type: object
      properties:
        permission:
          type: string
          enum: [read, edit, full]
      required: [permission]

    # ADMIN
    AdminUser:
      type: object
      properties:
        id:
          type: string
        email:
          type: string
        displayName:
          type: string
          nullable: true
        role:
          type: string
          enum: [user, admin]
        status:
          type: string
          enum: [pending, active, suspended]
        fileCount:
          type: integer
        lastLoginAt:
          type: string
          format: date-time
          nullable: true
        createdAt:
          type: string
          format: date-time
      required: [id, email, role, status, fileCount, createdAt]

    AdminCreateUserBody:
      type: object
      properties:
        email:
          type: string
          format: email
        password:
          type: string
        displayName:
          type: string
        role:
          type: string
          enum: [user, admin]
      required: [email, password]

    AdminUpdateUserBody:
      type: object
      properties:
        role:
          type: string
          enum: [user, admin]
        status:
          type: string
          enum: [active, suspended]

    JoinRequest:
      type: object
      properties:
        id:
          type: string
        email:
          type: string
        displayName:
          type: string
          nullable: true
        requestedAt:
          type: string
          format: date-time
      required: [id, email, requestedAt]

    ProcessJoinRequestBody:
      type: object
      properties:
        action:
          type: string
          enum: [approve, reject]
        reason:
          type: string
          nullable: true
      required: [action]

    PlatformStats:
      type: object
      properties:
        totalUsers:
          type: integer
        activeUsers:
          type: integer
        pendingRequests:
          type: integer
        totalFiles:
          type: integer
        filesConvertedToday:
          type: integer
        filesConvertedThisWeek:
          type: integer
        successRate:
          type: number
        averageQualityScore:
          type: number
        averageProcessingSeconds:
          type: number
        topFileType:
          type: string
        conversionsByType:
          type: object
          additionalProperties:
            type: integer
      required: [totalUsers, activeUsers, pendingRequests, totalFiles, filesConvertedToday, filesConvertedThisWeek, successRate, averageQualityScore, averageProcessingSeconds]

    TrashItems:
      type: object
      properties:
        files:
          type: array
          items:
            $ref: "#/components/schemas/FileItem"
        folders:
          type: array
          items:
            $ref: "#/components/schemas/Folder"
      required: [files, folders]