import React, { useEffect, useState } from 'react';
import { HiBars3BottomLeft } from "react-icons/hi2";
import { FaCheck } from "react-icons/fa6";
import '../App.css';
import InvestmentForm from './YatırımForm';
import axios from 'axios';

const BASE_URL = "http://localhost:8000";

const YatırımContent = () => {
    const [showFilterMenu, setShowFilterMenu] = useState(true);
    const [showModal, setShowModal] = useState(false);
    const [bankAccounts, setBankAccounts] = useState([]);
    const [selectedAccounts, setSelectedAccounts] = useState([]);
    const [loading, setLoading] = useState(false);
    const [error, setError] = useState(null);
    const [minAmount, setMinAmount] = useState('');
    const [maxAmount, setMaxAmount] = useState('');

    useEffect(() => {
        fetchBankAccounts();
    }, []);

    const fetchBankAccounts = async () => {
        const token = localStorage.getItem('token');
        setLoading(true);
        try {
            const response = await axios.get(`${BASE_URL}/bank/accounts`, {
                headers: {
                    'Authorization': `Bearer ${token}`
                }
            });
            setBankAccounts(response.data.data);
        } catch (err) {
            setError('Banka hesapları yüklenirken bir hata oluştu');
            console.error('Error fetching bank accounts:', err);
        } finally {
            setLoading(false);
        }
    };

    const toggleFilterMenu = () => {
        setShowFilterMenu(prevState => !prevState);
    };

    const handleSelectAllAccounts = (e) => {
        if (e.target.checked) {
            setSelectedAccounts(bankAccounts.map(account => account.accountId));
        } else {
            setSelectedAccounts([]);
        }
    };

    const handleAccountSelection = (accountId) => {
        setSelectedAccounts(prev => {
            if (prev.includes(accountId)) {
                return prev.filter(id => id !== accountId);
            } else {
                return [...prev, accountId];
            }
        });
    };

    return (
        <div className="w-full border-4 bg-slate-200 border-slate-200">
            <div className="flex flex-col p-5 border-4 gap-4 items-start justify-center">
                <div className="flex items-center justify-between border border-black border-r-0 border-t-0 border-l-0 pb-2 flex-wrap gap-4 w-full">
                    <button 
                        onClick={() => setShowModal(true)} 
                        type="button" 
                        className="p-1.5 text-xs rounded-lg bg-emerald-500 text-white hover:bg-emerald-600"
                    >
                        Banka Yatırım Talebi Oluştur
                    </button>
                    <div className="flex flex-row items-center text-sm gap-1 justify-center">
                        <input type="date" className="p-1 rounded-md text-xs" />
                        <span>ve</span>
                        <input type="date" className="p-1 rounded-md text-xs" />
                    </div>
                </div>

                {showModal && (
                    <InvestmentForm 
                        show={showModal} 
                        title="Yatırım Oluşturma Formu" 
                        onClose={() => setShowModal(false)} 
                    />
                )}

                <div 
                    onClick={toggleFilterMenu} 
                    className="items-center cursor-pointer gap-1 justify-center flex-row text-xs flex hover:text-emerald-600"
                >
                    <button type="button">Filtrele</button>
                    <HiBars3BottomLeft />
                </div>

                {!showFilterMenu && (
                    <div className="w-full">
                        <div className="flex items-center md:items-start flex-wrap flex-1 gap-6 justify-between">
                            <div className="flex flex-col items-start text-sm justify-center gap-3.5">
                                <h5 className="font-medium">Banka Hesapları</h5>
                                <div className="flex flex-row text-xs items-center justify-center gap-1">
                                    <input 
                                        type="checkbox" 
                                        checked={selectedAccounts.length === bankAccounts.length}
                                        onChange={handleSelectAllAccounts}
                                        className="rounded"
                                    />
                                    <span>Hepsini Seç</span>
                                </div>
                                <div className="flex flex-col gap-2 max-h-40 overflow-y-auto">
                                    {loading ? (
                                        <div className="text-xs text-gray-500">Yükleniyor...</div>
                                    ) : error ? (
                                        <div className="text-xs text-red-500">{error}</div>
                                    ) : (
                                        bankAccounts.map(account => (
                                            <label 
                                                key={account.accountId} 
                                                className="flex items-center gap-2 text-xs"
                                            >
                                                <input 
                                                    type="checkbox"
                                                    checked={selectedAccounts.includes(account.accountId)}
                                                    onChange={() => handleAccountSelection(account.accountId)}
                                                    className="rounded"
                                                />
                                                <span>{account.bankName} - {account.accountName}</span>
                                            </label>
                                        ))
                                    )}
                                </div>
                            </div>

                            <div className="flex flex-col items-start justify-center gap-5">
                                <div className="flex flex-row items-center text-xs justify-center gap-1">
                                    <h1>Tutar Aralığı</h1>
                                    <input 
                                        type="number" 
                                        placeholder="0 ₺" 
                                        value={minAmount}
                                        onChange={(e) => setMinAmount(e.target.value)}
                                        className="rounded-sm text-center w-28 p-1 text-xs" 
                                    />
                                    <span>ve</span>
                                    <input 
                                        type="number" 
                                        placeholder="500.000 ₺" 
                                        value={maxAmount}
                                        onChange={(e) => setMaxAmount(e.target.value)}
                                        className="rounded-sm w-28 text-center p-1 text-xs" 
                                    />
                                </div>
                                <div className="flex items-center justify-center">
                                    <div className="flex flex-row items-center justify-center rounded-lg p-1 bg-emerald-600 text-white">
                                        <FaCheck size={10} />
                                        <button 
                                            type="button" 
                                            className="text-xs p-1 rounded-lg"
                                        >
                                            Otomatik Güncelleştirme Açık
                                        </button>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                )}
            </div>
        </div>
    );
};

export default YatırımContent;