import BusinessTypeSetting from "@/_BusinessTypeSetting/BusinessTypeSetting";
import MainControlData from "@/Common/DataReceived/MainControlData";
import GameManager from "@/modules/GameManager";
import React, { useContext, useEffect, useState } from "react";
import { useNavigate } from "react-router-dom";
import MainControl, { DownloadForm } from "../Common/MainControl/MainControl";
import CSMessage from "../Common/Message/CSMessage";
import { GameItemsContext } from "../context/GameItemsContext";
import { AccountLoginRequest, CommonAccountResponse, LineLoginRequest } from "../define/Request/AccountRequest";
import { CoroutineV2 } from "../Engine/CatanEngine/CoroutineV2/CoroutineV2";
import { INetResponse } from "../Engine/CatanEngine/NetManagerV2/Core/INetResponse";

export default function LoginPage() {
	const navigate = useNavigate();
	const { player, setPlayer } = useContext(GameItemsContext);

	const [server, setServer] = useState("https://dev.lybobet.com");
	const [port, setPort] = useState("9005");
	const [token, setToken] = useState("");
	const [loading, setLoading] = useState(false);

	useEffect(() => {
		if (!MainControl.Instance) new MainControl();
		new MainControlData();
		new GameManager();
		const savedToken = localStorage.getItem("token");
		if (savedToken) setToken(savedToken);

		// DownloadForm
		MainControl.DownloadForm(DownloadForm.FormType.Formread)
	}, []);

	const handleChange = (setter: any) => (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) =>
		setter(e.target.value);

	const onClickLogin = async () => {
		if (!server) return CSMessage.CreateYesMsg("請輸入 server");
		if (!port) return CSMessage.CreateYesMsg("請輸入 port");
		if (!token) return CSMessage.CreateYesMsg("請輸入 token");
		if (loading) return;

		setLoading(true);
		BusinessTypeSetting.UseHost = server;
		BusinessTypeSetting.UsePort = +port;
		CoroutineV2.Single(login()).Start();
	};

	function* login() {
		try {
			localStorage.setItem("token", token);
			yield* MainControl.Instance.ConnectAsync(BusinessTypeSetting.UseHost, BusinessTypeSetting.UsePort);
			yield* registerLineLogin();
		} finally {
			setLoading(false);
		}
	}

	function* registerLineLogin() {
		const req = new LineLoginRequest(token);
		yield req.SendAsync(true);
		const resp: INetResponse<CommonAccountResponse> = req.Result;

		if (!resp.IsValid) {
			if (resp.Status !== 12) CSMessage.CreateYesMsg("Line Info Error. Error Code: " + resp.Status);
			else console.warn("LINE帳號無綁定");
			return;
		}

		yield* serverAccountLogin(resp.Data.id, resp.Data.pw);
	}

	function* serverAccountLogin(a: string, pw: string, partner: string | null = null): IterableIterator<any> {
		const hasAP = a && a !== "null" && a !== "undefined" && pw && pw !== "null" && pw !== "undefined";
		if (!hasAP) return CSMessage.CreateYesMsg("沒有帳號或密碼.請確認回傳接值.");

		const req = new AccountLoginRequest(a, pw, partner);
		yield req.SendAsync(true);
		const resp: INetResponse<any> = req.Result;

		if (!resp.IsValid) return CSMessage.CreateYesMsg("Login Account Error! Error Code : " + resp.Status);

		setPlayer({ ...player, ...resp.Data, token });
		navigate("/lobby");
	}

	// ====== inline CSS ======
	const containerStyle: React.CSSProperties = {
		height: "100vh",
		display: "flex",
		justifyContent: "center",
		alignItems: "center",
		background: "transparent",
		padding: "16px",
		color: "#000000", // 文字黑色
	};

	const boxStyle: React.CSSProperties = {
		background: "white", // 卡片內部保持白色
		padding: "24px",
		borderRadius: "16px",
		width: "100%",
		maxWidth: "400px",
		boxShadow: "0 4px 12px rgba(0,0,0,0.15)",
		display: "flex",
		flexDirection: "column",
		gap: "16px",
		color: "#000000", // 卡片內文字黑色
	};

	const inputStyle: React.CSSProperties = {
		width: "100%",
		padding: "12px",
		borderRadius: "12px",
		border: "1px solid #d9d9d9",
		fontSize: "1rem",
		color: "#000000", // 輸入文字黑色
		backgroundColor: "#ffffff", // 輸入框白色
	};

	const buttonStyle: React.CSSProperties = {
		width: "100%",
		padding: "12px",
		borderRadius: "12px",
		border: "none",
		backgroundColor: loading ? "#a0a0a0" : "#1890ff",
		color: "white",
		cursor: loading ? "not-allowed" : "pointer",
		fontSize: "1rem",
		transition: "all 0.3s",
	};

	return (
		<div style={containerStyle}>
			<div style={boxStyle}>
				<h1 style={{ textAlign: "center", fontSize: "1.8rem", margin: 0 }}>登入</h1>

				<div style={{ display: "flex", flexDirection: "column", gap: "8px" }}>
					<label>Server：</label>
					<input style={inputStyle} value={server} onChange={handleChange(setServer)} placeholder="例如：http://192.168.1.10" />
				</div>

				<div style={{ display: "flex", flexDirection: "column", gap: "8px" }}>
					<label>Port：</label>
					<input style={inputStyle} value={port} onChange={handleChange(setPort)} placeholder="9005" />
				</div>

				<div style={{ display: "flex", flexDirection: "column", gap: "8px" }}>
					<label>Token：</label>
					<textarea style={{ ...inputStyle, height: "80px" }} value={token} onChange={handleChange(setToken)} placeholder="輸入 Token" />
				</div>

				<button style={buttonStyle} onClick={onClickLogin} disabled={loading}>
					{loading ? "登入中..." : "登入"}
				</button>
			</div>
		</div>
	);
}