from fastapi import APIRouter, Depends, Form, Request
from fastapi.responses import HTMLResponse, RedirectResponse
from sqlalchemy.orm import Session
from database import SessionLocal

router = APIRouter(prefix="/admin/step1", tags=["step1"])


def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()


@router.get("", response_class=HTMLResponse)
def step1_page(request: Request, db: Session = Depends(get_db)):
    rows = db.execute("""
        SELECT * FROM step1_attr
        ORDER BY base_template_id, attr_key, sort_order
    """).fetchall()

    html = """
    <h2>Step1 模板配置</h2>

    <form method="post" action="/admin/step1/add">
      模板ID：<input name="base_template_id"><br>
      属性Key：<input name="attr_key"><br>
      属性名：<input name="attr_name"><br>
      值ID：<input name="value_id"><br>
      值名称：<input name="value_name"><br>
      必填：<input name="required" value="1"><br>
      多选：<input name="is_multi" value="0"><br>
      <button type="submit">新增</button>
    </form>

    <hr>
    """

    last_tpl = None
    for r in rows:
        if r.base_template_id != last_tpl:
            html += f"<h3>模板 {r.base_template_id}</h3>"
            last_tpl = r.base_template_id

        html += f"""
        <div>
          [{r.attr_name}] {r.value_name}
        </div>
        """

    return html


@router.post("/add")
def add_step1(
    base_template_id: int = Form(...),
    attr_key: str = Form(...),
    attr_name: str = Form(...),
    value_id: int = Form(...),
    value_name: str = Form(...),
    required: int = Form(1),
    is_multi: int = Form(0),
    db: Session = Depends(get_db)
):
    db.execute("""
      INSERT INTO step1_attr
      (base_template_id, attr_key, attr_name, value_id, value_name, required, is_multi)
      VALUES
      (:tpl,:k,:n,:vid,:vname,:r,:m)
    """, {
        "tpl": base_template_id,
        "k": attr_key,
        "n": attr_name,
        "vid": value_id,
        "vname": value_name,
        "r": required,
        "m": is_multi
    })
    db.commit()
    return RedirectResponse("/admin/step1", status_code=302)