import React, { useEffect, useState } from 'react';
import { useNavigate, useParams, useLocation } from 'react-router-dom';
import { Typography, Card, Row, Col, Tag, Button, Space, Descriptions, Divider, Steps, Collapse, Switch, Spin, Modal, Empty } from 'antd';
import { ArrowLeftOutlined, FileTextOutlined, FilePdfOutlined, EyeOutlined } from '@ant-design/icons';
import { useBreadcrumb } from '../../../layout/LayoutBreadcrumb';
import { NotifOk, NotifAlert } from '../../../components/Global/ToastNotif';
import { getBrandById } from '../../../api/master-brand';

const { Title, Text } = Typography;
const { Step } = Steps;
const { Panel } = Collapse;

const ViewBrandDevice = () => {
    const navigate = useNavigate();
    const { id } = useParams();
    const location = useLocation();
    const { setBreadcrumbItems } = useBreadcrumb();
    const [brandData, setBrandData] = useState(null);
    const [loading, setLoading] = useState(true);
    const [currentStep, setCurrentStep] = useState(0);
    const [activeErrorKeys, setActiveErrorKeys] = useState([]);

    useEffect(() => {
        const fetchBrandData = async () => {
            const token = localStorage.getItem('token');
            if (token) {
                const savedPhase = location.state?.phase || localStorage.getItem(`brand_device_${id}_last_phase`);
                if (savedPhase) {
                    setCurrentStep(parseInt(savedPhase));
                    localStorage.removeItem(`brand_device_${id}_last_phase`);
                }

                setBreadcrumbItems([
                    { title: <Text strong style={{ fontSize: '14px' }}>• Master</Text> },
                    {
                        title: <Text strong style={{ fontSize: '14px' }} onClick={() => navigate('/master/brand-device')}>Brand Device</Text>
                    },
                    { title: <Text strong style={{ fontSize: '14px' }}>View Brand Device</Text> }
                ]);

                try {
                    setLoading(true);
                    const response = await getBrandById(id);

                    if (response && response.statusCode === 200) {
                        setBrandData(response.data);
                    } else {
                        NotifAlert({
                            icon: 'error',
                            title: 'Error',
                            message: response?.message || 'Failed to fetch brand device data',
                        });
                    }
                } catch (error) {
                    console.error('Fetch Brand Device Error:', error);
                    NotifAlert({
                        icon: 'error',
                        title: 'Error',
                        message: error.message || 'Failed to fetch brand device data',
                    });
                } finally {
                    setLoading(false);
                }
            } else {
                navigate('/signin');
            }
        };

        fetchBrandData();
    }, [id, setBreadcrumbItems, navigate, location.state]);

    const handleFileView = (fileName, fileType) => {
        localStorage.setItem(`brand_device_${id}_last_phase`, currentStep.toString());

        let actualFileName = fileName;
        if (fileName && fileName.includes('/')) {
            const parts = fileName.split('/');
            actualFileName = parts[parts.length - 1];
        }

        const encodedFileName = encodeURIComponent(actualFileName);
        const fileTypeParam = fileType === 'image' ? 'image' : 'pdf';
        const navigationPath = `/master/brand-device/view/${id}/files/${fileTypeParam}/${encodedFileName}`;
        navigate(navigationPath);
    };

    const renderStepContent = () => {
        if (currentStep === 0) {
            return (
                <div>
                    <div style={{ display: 'flex', alignItems: 'center', marginBottom: 16 }}>
                        <Text strong>Status</Text>
                    </div>
                    <div style={{ display: 'flex', alignItems: 'center', marginBottom: 24 }}>
                        <div style={{ width: 44, height: 24, backgroundColor: (brandData || {}).is_active ? '#23A55A' : '#bfbfbf', borderRadius: 12, marginRight: 8, position: 'relative' }}>
                            <div style={{
                                width: 20,
                                height: 20,
                                backgroundColor: 'white',
                                borderRadius: '50%',
                                position: 'absolute',
                                top: 2,
                                left: (brandData || {}).is_active ? 22 : 2,
                                transition: 'left 0.3s ease',
                                boxShadow: '0 2px 4px rgba(0,0,0,0.2)'
                            }}></div>
                        </div>
                        <Text>{(brandData || {}).is_active ? 'Running' : 'Offline'}</Text>
                    </div>

                    <div style={{ marginBottom: 16 }}>
                        <Text strong>Brand Code</Text>
                    </div>
                    <div style={{ marginBottom: 24 }}>
                        <div style={{
                            padding: '8px 12px',
                            border: '1px solid #d9d9d9',
                            borderRadius: '6px',
                            backgroundColor: '#f5f5f5',
                            color: '#000000'
                        }}>
                            {brandData?.brand_code || (loading ? 'Loading...' : '-')}
                        </div>
                    </div>

                    <Row gutter={16}>
                        <Col span={12}>
                            <div style={{ marginBottom: 16 }}>
                                <Text strong>Brand Name</Text>
                            </div>
                            <div style={{ marginBottom: 24 }}>
                                <div style={{
                                    padding: '8px 12px',
                                    border: '1px solid #d9d9d9',
                                    borderRadius: '6px',
                                    backgroundColor: 'white',
                                    minHeight: '32px'
                                }}>
                                    {brandData?.brand_name || (loading ? 'Loading...' : '-')}
                                </div>
                            </div>
                        </Col>
                        <Col span={12}>
                            <div style={{ marginBottom: 16 }}>
                                <Text strong>Manufacture</Text>
                            </div>
                            <div style={{ marginBottom: 24 }}>
                                <div style={{
                                    padding: '8px 12px',
                                    border: '1px solid #d9d9d9',
                                    borderRadius: '6px',
                                    backgroundColor: 'white',
                                    minHeight: '32px'
                                }}>
                                    {brandData?.brand_manufacture || (loading ? 'Loading...' : '-')}
                                </div>
                            </div>
                        </Col>
                    </Row>

                    <Row gutter={16}>
                        <Col span={12}>
                            <div style={{ marginBottom: 16 }}>
                                <Text strong>Brand Type</Text>
                            </div>
                            <div style={{ marginBottom: 24 }}>
                                <div style={{
                                    padding: '8px 12px',
                                    border: '1px solid #d9d9d9',
                                    borderRadius: '6px',
                                    backgroundColor: 'white',
                                    minHeight: '32px'
                                }}>
                                    {brandData?.brand_type || (loading ? 'Loading...' : '-')}
                                </div>
                            </div>
                        </Col>
                        <Col span={12}>
                            <div style={{ marginBottom: 16 }}>
                                <Text strong>Model</Text>
                            </div>
                            <div style={{ marginBottom: 24 }}>
                                <div style={{
                                    padding: '8px 12px',
                                    border: '1px solid #d9d9d9',
                                    borderRadius: '6px',
                                    backgroundColor: 'white',
                                    minHeight: '32px'
                                }}>
                                    {brandData?.brand_model || (loading ? 'Loading...' : '-')}
                                </div>
                            </div>
                        </Col>
                    </Row>
                </div>
            );
        }

        if (currentStep === 1) {
            const errorCodes = brandData?.error_code || [];

            return (
                <div>
                    <Title level={5} style={{ marginBottom: 16 }}>
                        Error Codes ({errorCodes.length})
                    </Title>

                    {errorCodes.length > 0 ? (
                        <Collapse
                            activeKey={activeErrorKeys}
                            onChange={setActiveErrorKeys}
                            style={{ marginBottom: 16 }}
                        >
                            {errorCodes.map((errorCode, index) => (
                                <Panel
                                    key={index}
                                    header={
                                        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', width: '100%' }}>
                                            <div>
                                                <Text strong style={{ fontSize: '14px' }}>{errorCode.error_code}</Text>
                                                <Text style={{ marginLeft: 8, fontSize: '12px', color: '#666' }}>
                                                    - {errorCode.error_code_name}
                                                </Text>
                                            </div>
                                            <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
                                                <Tag color={errorCode.is_active ? 'green' : 'red'} style={{ margin: 0 }}>
                                                    {errorCode.is_active ? 'Active' : 'Inactive'}
                                                </Tag>
                                                <Text style={{ fontSize: '12px', color: '#999' }}>
                                                    {errorCode.solution?.length || 0} solution(s)
                                                </Text>
                                            </div>
                                        </div>
                                    }
                                >
                                    <div style={{ padding: '12px 0' }}>
                                        <div style={{ marginBottom: 16 }}>
                                            <Text type="secondary">Description:</Text>
                                            <div style={{ marginTop: 4 }}>
                                                <Text>{errorCode.error_code_description || 'No description'}</Text>
                                            </div>
                                        </div>

                                        <div>
                                            <Text strong>Solutions:</Text>
                                            {errorCode.solution && errorCode.solution.length > 0 ? (
                                                <div style={{ marginTop: 12, display: 'flex', flexDirection: 'column', gap: 12 }}>
                                                    {errorCode.solution.map((solution) => (
                                                        <Card
                                                            key={solution.brand_code_solution_id}
                                                            size="small"
                                                            style={{
                                                                backgroundColor: '#fafafa',
                                                                border: '1px solid #f0f0f0'
                                                            }}
                                                        >
                                                            <Row justify="space-between" align="middle">
                                                                <Col>
                                                                    <Space>
                                                                        {solution.type_solution === 'pdf' ? (
                                                                            <FilePdfOutlined style={{ color: '#ff4d4f', fontSize: '16px' }} />
                                                                        ) : solution.type_solution === 'image' ? (
                                                                            <EyeOutlined style={{ color: '#1890ff', fontSize: '16px' }} />
                                                                        ) : (
                                                                            <FileTextOutlined style={{ color: '#1890ff', fontSize: '16px' }} />
                                                                        )}
                                                                        <Text strong style={{ fontSize: '13px' }}>{solution.solution_name}</Text>
                                                                    </Space>
                                                                </Col>
                                                                <Col>
                                                                    <Tag
                                                                        color={
                                                                            solution.type_solution === 'pdf' ? 'red' :
                                                                            solution.type_solution === 'image' ? 'blue' :
                                                                            'default'
                                                                        }
                                                                        style={{ fontSize: '11px' }}
                                                                    >
                                                                        {solution.type_solution ? solution.type_solution.toUpperCase() : 'TEXT'}
                                                                    </Tag>
                                                                </Col>
                                                            </Row>

                                                            <div style={{ marginTop: 8 }}>
                                                                {solution.type_solution === 'text' ? (
                                                                    <Text style={{ fontSize: '12px', color: '#666' }}>
                                                                        {solution.text_solution}
                                                                    </Text>
                                                                ) : (
                                                                    <div>
                                                                        <Text style={{ fontSize: '12px', color: '#666' }}>
                                                                            File: {solution.path_document || solution.path_solution || 'Document'}
                                                                        </Text>
                                                                        {(solution.path_document || solution.path_solution) && (
                                                                            <Button
                                                                                type="link"
                                                                                size="small"
                                                                                onClick={() => {
                                                                                    handleFileView(
                                                                                        (solution.path_document || solution.path_solution || solution.file_upload_name || solution.solution_name || 'Document')?.toString(),
                                                                                        solution.type_solution || 'pdf'
                                                                                    );
                                                                                }}
                                                                                style={{ padding: 0, height: 'auto', fontSize: '12px', marginLeft: 8 }}
                                                                            >
                                                                                View
                                                                            </Button>
                                                                        )}
                                                                    </div>
                                                                )}
                                                            </div>
                                                        </Card>
                                                    ))}
                                                </div>
                                            ) : (
                                                <div style={{ marginTop: 12 }}>
                                                    <Text type="secondary" style={{ fontSize: '12px' }}>No solutions available</Text>
                                                </div>
                                            )}
                                        </div>
                                    </div>
                                </Panel>
                            ))}
                        </Collapse>
                    ) : (
                        !loading && (
                            <Empty
                                image={Empty.PRESENTED_IMAGE_SIMPLE}
                                description={
                                    <Text type="secondary">No error codes available</Text>
                                }
                            />
                        )
                    )}
                </div>
            );
        }

        return null;
    };

    return (
        <React.Fragment>
            <Card>
                <Row justify="space-between" align="middle">
                    <Col>
                        <Title level={4} style={{ margin: 0 }}>View Brand Device</Title>
                    </Col>
                    <Col>
                        <Space>
                            <Button
                                icon={<ArrowLeftOutlined />}
                                onClick={() => navigate('/master/brand-device')}
                            >
                                Kembali
                            </Button>
                        </Space>
                    </Col>
                </Row>
                <Divider />
                <Steps current={currentStep} style={{ marginBottom: 24 }}>
                    <Step title="Brand Device Details" />
                    <Step title="Error Codes & Solutions" />
                </Steps>

                <div style={{ position: 'relative', marginTop: 24 }}>
                    {loading && (
                        <div style={{
                            position: 'absolute',
                            top: 0,
                            left: 0,
                            right: 0,
                            bottom: 0,
                            backgroundColor: 'rgba(255, 255, 255, 0.6)',
                            backdropFilter: 'blur(0.8px)',
                            display: 'flex',
                            justifyContent: 'center',
                            alignItems: 'center',
                            zIndex: 5,
                            borderRadius: '8px'
                        }}>
                            <Spin size="large" />
                        </div>
                    )}

                    <div style={{ filter: loading ? 'blur(0.5px)' : 'none', transition: 'filter 0.3s ease' }}>
                        {renderStepContent()}
                    </div>
                </div>

                <Divider />
                <div style={{ display: 'flex', justifyContent: 'flex-end', gap: 8 }}>
                    {currentStep > 0 && (
                        <Button
                            onClick={() => setCurrentStep(currentStep - 1)}
                            style={{ marginRight: 8 }}
                        >
                            Kembali
                        </Button>
                    )}
                    {currentStep < 1 && (
                        <Button
                            type="primary"
                            onClick={() => setCurrentStep(currentStep + 1)}
                            style={{ backgroundColor: '#23a55a', borderColor: '#23a55a' }}
                        >
                            Lanjut
                        </Button>
                    )}
                </div>
            </Card>
        </React.Fragment>
    );
};

export default ViewBrandDevice;