from PDAPI import *


__metadata__ = {
    "methods": ["POST"],
    "blueprint": "GERP",
    "permission": 1.0,
    "attributes": [],
    "limit": "1 per second",
    "form": [
        {"Name": "BackpackItemUUID", "Type": "UUID"},
        {"Name": "Count", "Type": "int", "MinLen": 1}
    ]
}
def HandleRequest():
    Item: GERPBackpack
    ELTUser: GERPUser = flask.g.ELTUser
    BackpackItemUUID = Get16toBytes(flask.request.form.get("BackpackItemUUID"))
    Count = int(flask.request.form.get("Count"))
    if not (Item := GERPBackpack.query.filter(GERPBackpack.BackpackItemUUID == BackpackItemUUID).first()):
        return {"code": 1, "msg": "未找到"}
    if Count > Item.ItemLength:
        return {"code": 1, "msg": "需求物品数量 大于 实际物品数量"}
    if Item.ItemMetaData and "AllowDiscard" in Item.ItemMetaData and not Item.ItemMetaData["AllowDiscard"]:
        return {"code": 1, "msg": "此物品不允许丢弃"}
    if Count == Item.ItemLength:
        db.session.delete(Item)
    if Count < Item.ItemLength:
        Item.ItemLength = Item.ItemLength - Count
        db.session.add(Item)
    try:
        db.session.commit()
        return {"code": 0, "msg": "丢弃成功"}
    except:
        db.session.rollback()
        return {"code": 1, "msg": "SQL 提交失败"}