openapi: 3.0.3
info:
  title: 影策 HTTP API
  version: "1.0.0"
  description: |
    路径前缀是 `/api`。前后端一起发布，不按路径做 API 版本。

    业务 JSON 信封为 `{ code, data, msg, reason }`。`code === 0` 表示成功；失败时 HTTP status 与
    `code` 都表达失败。`code` 默认等于 HTTP 状态；同一状态下的细分原因使用 `status*100+n`
    （例如 40301 配额、42901 限流）。机器判断请用 `reason`，不要解析 `msg`。

    TypeScript 调用面仍是 `web/src/services/api` 的 `http` 模块，不从本规范生成客户端。
servers:
  - url: /api
security:
  - sessionCookie: []
tags:
  - name: meta
  - name: auth
  - name: projects
  - name: resources
  - name: tasks
  - name: assets
paths:
  /openapi.yaml:
    get:
      tags: [meta]
      security: []
      summary: 本 OpenAPI 文档
      responses:
        "200":
          description: OpenAPI 3.0 YAML
          content:
            application/yaml:
              schema:
                type: string
  /auth/session:
    get:
      tags: [auth]
      summary: 当前登录会话
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "401":
          $ref: "#/components/responses/Error"
  /auth/login:
    post:
      tags: [auth]
      security: []
      summary: 登录并设置会话 Cookie
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [username, password]
              properties:
                username: { type: string }
                password: { type: string }
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "401":
          $ref: "#/components/responses/Error"
  /projects:
    get:
      tags: [projects]
      summary: 短剧项目列表
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "401":
          $ref: "#/components/responses/Error"
        "403":
          $ref: "#/components/responses/Error"
    post:
      tags: [projects]
      summary: 创建短剧项目
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "400":
          $ref: "#/components/responses/Error"
  /resources:
    get:
      tags: [resources]
      summary: 当前用户资源列表
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
    post:
      tags: [resources]
      summary: 上传资源文件
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "403":
          description: 配额用尽（code=40301, reason=quota_exceeded）
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/ErrorEnvelope"
  /resources/{id}/file:
    get:
      tags: [resources]
      summary: 读取资源二进制（非 JSON 信封）
      parameters:
        - in: path
          name: id
          required: true
          schema: { type: string }
      responses:
        "200":
          description: 文件流
        "401":
          $ref: "#/components/responses/Error"
        "404":
          $ref: "#/components/responses/Error"
  /tasks:
    post:
      tags: [tasks]
      summary: 创建生成任务
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
        "400":
          $ref: "#/components/responses/Error"
  /tasks/{id}/text-events:
    get:
      tags: [tasks]
      summary: 文本任务 SSE
      parameters:
        - in: path
          name: id
          required: true
          schema: { type: string }
        - in: query
          name: after
          schema: { type: integer }
          description: 递增事件游标，不要用任务 ID
      responses:
        "200":
          description: text/event-stream
  /assets:
    get:
      tags: [assets]
      summary: 用户素材库
      responses:
        "200":
          $ref: "#/components/responses/Envelope"
components:
  securitySchemes:
    sessionCookie:
      type: apiKey
      in: cookie
      name: open_ai_canvas_session
  schemas:
    Envelope:
      type: object
      required: [code, msg]
      properties:
        code:
          type: integer
          description: 0 成功；失败时默认等于 HTTP 状态，或 status*100+n 的细分码
        data: {}
        msg:
          type: string
        reason:
          type: string
          description: 仅失败时出现。稳定机器可读原因。
    ErrorEnvelope:
      allOf:
        - $ref: "#/components/schemas/Envelope"
        - type: object
          properties:
            code:
              type: integer
              enum: [400, 401, 403, 404, 409, 429, 500, 502, 503, 504, 40301, 40901, 42901]
            data:
              nullable: true
            reason:
              type: string
              enum:
                - invalid_argument
                - unauthorized
                - forbidden
                - not_found
                - conflict
                - failed_precondition
                - quota_exceeded
                - rate_limited
                - unavailable
                - timeout
                - internal
                - bad_gateway
                - model_capability_not_supported
                - model_price_not_configured
                - model_route_unavailable
                - provider_request_failed
                - model_catalog_mismatch
                - invalid_model_selection
  responses:
    Envelope:
      description: 业务成功信封
      content:
        application/json:
          schema:
            $ref: "#/components/schemas/Envelope"
    Error:
      description: 业务失败信封
      content:
        application/json:
          schema:
            $ref: "#/components/schemas/ErrorEnvelope"