openapi: '3.0.3'
info:
  title: zzyxyz_vfs_api
  description: 虚拟文件系统API服务
  version: '1.0'
servers:
  - url: http://localhost:8080/api
    description: 开发环境
  - url: https://api.zzyxyz.com/api
    description: 生产环境
tags:
  - name: vfs
    description: 虚拟文件系统相关操作
  - name: user
    description: 用户相关操作
security:
  - ApiKeyAuth: []

paths:
  /vfs/v1/users/{username}:
    parameters:
      - name: username
        in: path
        example: user
        required: true
        schema:
          type: string

    post:
      summary: 创建用户
      description: 创建一个用户
      operationId: createUser
      tags: [user]
      responses:
        '201':
          description: 创建成功
          headers:
            X-VFS-Token:
              schema:
                type: string
              description: 认证令牌
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

    delete:
      summary: 删除用户
      description: 删除一个用户
      operationId: deleteUser
      tags: [user]
      responses:
        '204':
          description: 删除成功
        '404':
          description: 用户不存在
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

  /vfs/v1/files:
    parameters:
      - name: path
        in: query
        required: true
        description: 文件系统路径，例如 "documents/readme.txt" 或 "services/mysql.service" 或 "folder/"
        schema:
          type: string
          example: "readme.txt"

    get:
      summary: 读取文件或列出目录
      description: 获取指定路径的文件内容或目录列表
      operationId: getVFSNode
      tags: [vfs]
      parameters:
        - name: op
          in: query
          required: false
          description: 操作类型, list表示列出目录内容, 不指定则读取文件内容
          schema:
            type: string
            enum: [list]
      responses:
        '200':
          description: 文件内容或目录列表
          content:
            application/json:
              schema:
                description: 目录条目列表
                type: array
                items:
                  $ref: '#/components/schemas/VFSDirectoryEntry'
            application/octet-stream:
              schema:
                description: 文件或服务的二进制内容
                type: string
                format: binary
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '404':
          $ref: '#/components/responses/PathNotFoundError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

    post:
      summary: 创建文件或目录
      description: 创建文件或目录
      operationId: createVFSNode
      tags: [vfs]
      requestBody:
        required: false
        content:
          application/octet-stream:
              schema:
                description: 文件或服务的二进制内容
                type: string
                format: byte
      responses:
        '201':
          description: 创建成功
          content:
            application/octet-stream:
              schema:
                description: 文件或服务的二进制内容
                type: string
                format: byte
            application/json:
              schema:
                $ref: '#/components/schemas/VFSNodeResponse'
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '404':
          $ref: '#/components/responses/PathNotFoundError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

    patch:
      summary: 修改文件或修改目录
      description: 修改/移动/重命名/复制 已存在的 文件/目录
      operationId: updateVFSNode
      tags: [vfs]
      parameters:
        - name: op
          in: query
          description: 操作模式
          required: true
          schema:
            type: string
            enum: [move, rename, change, copy]
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: string
              description: 目的文件夹路径 / 文件名路径
              example: "/home/"
      responses:
        '200':
          description: 操作成功
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VFSNodeResponse'
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '404':
          $ref: '#/components/responses/PathNotFoundError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

    delete:
      summary: 删除文件或目录
      description: 删除指定路径的文件或目录
      operationId: deleteVFSNode
      tags: [vfs]
      responses:
        '204':
          description: 删除成功
        '400':
          $ref: '#/components/responses/ParameterError'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '403':
          $ref: '#/components/responses/ForbiddenError'
        '404':
          $ref: '#/components/responses/PathNotFoundError'
        '500':
          $ref: '#/components/responses/ServerInternalError'

components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-VFS-Token

  responses:
    ServerInternalError:
      description: 服务器内部错误
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            errtype: "InternalServerError"
            message: "服务器内部错误"

    UnauthorizedError:
      description: 未授权
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            errtype: "Unauthorized"
            message: "访问被拒绝，缺少有效的认证令牌"
    
    ForbiddenError:
      description: 禁止
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            errtype: "Forbidden"
            message: "访问被拒绝，您没有权限访问此资源"

    PathNotFoundError:
      description: 路径不存在
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            errtype: "PathNotFound"
            message: "指定的路径不存在"

    ParameterError:
      description: 请求参数错误
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            errtype: "ParameterError"
            message: "请求参数无效或缺失"

  schemas:
    VFSNodeType:
      type: string
      description: 节点类型
      enum: [file, directory, service]

    VFSNodeResponse:
      type: object
      properties:
        name:
          type: string
          description: 节点名称
        type:
          $ref: '#/components/schemas/VFSNodeType'
        created_at:
          type: string
          format: date-time
          description: 创建时间
        updated_at:
          type: string
          format: date-time
          description: 更新时间
      required:
        - name
        - type
        - created_at
        - updated_at

    VFSDirectoryEntry:
      type: object
      properties:
        name:
          type: string
          description: 条目名称
        type:
          $ref: '#/components/schemas/VFSNodeType'
        permissions:
          type: string
          description: 权限信息，如 "rw"
      required:
        - name
        - type
        - modified

    Error:
      type: object
      description: 错误信息
      properties:
        errtype:
          type: string
          description: |
            错误类型，可能的值包括：
             - "InternalServerError": 服务器内部错误
             - "Unauthorized": 客户端需要提供正确格式权限
             - "Forbidden": 无权限访问
             - "PathNotFound": 路径不存在
             - "ParameterError": 请求参数错误
             - "ConflictError": 资源冲突
             - "DatabaseError": 数据库操作错误
             - "NotFoundError": 资源未找到
             - "AccessDenied": 访问被拒绝
             - "ServiceProxyError": 代理服务错误
          example: "InternalServerError"
          enum:
           - "InternalServerError"
           - "Unauthorized"
           - "Forbidden"
           - "PathNotFound"
           - "ParameterError"
           - "ConflictError"
           - "DatabaseError"
           - "NotFoundError"
           - "AccessDenied"
           - "ServiceProxyError"
        message:
          type: string
          description: 详细的错误信息
          example: "传递的第一个参数错误"
      required:
        - errtype
        - message