#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""作业 2 · 模拟「工单报修」HTTP API（FastAPI）。

启动（207 上）：
  pip3 install fastapi uvicorn -q
  uvicorn 作业2_ticket_api:app --host 0.0.0.0 --port 8778

或：bash scripts_bash_cursor/作业2_启动_ticket.sh
"""
from __future__ import annotations

import itertools
from typing import Any

from fastapi import FastAPI
from pydantic import BaseModel, Field

app = FastAPI(
    title="Ticket API",
    version="1.0.0",
    description="Dify Workflow 作业 2：模拟创建报修工单，返回工单号",
)

_seq = itertools.count(1001)


class TicketIn(BaseModel):
    query: str = Field(default="", description="用户报修描述")
    category: str = Field(default="repair", description="工单类别")


@app.post("/ticket", operation_id="createTicket", summary="创建报修工单")
def create_ticket(body: TicketIn) -> dict[str, Any]:
    n = next(_seq)
    ticket_id = "WO-%d" % n
    return {
        "ticket_id": ticket_id,
        "status": "created",
        "category": body.category,
        "issue": body.query or "未填写故障描述",
        "message": "报修工单已创建，工单号 %s" % ticket_id,
    }


@app.get("/health")
def health() -> dict[str, str]:
    return {"status": "ok"}


if __name__ == "__main__":
    import uvicorn

    uvicorn.run("作业2_ticket_api:app", host="0.0.0.0", port=8778, reload=False)