import React, {useEffect, useState} from 'react';
import {
    API,
    isMobile,
    shouldShowPrompt,
    showError,
    showInfo,
    showSuccess,
    timestamp2string
} from '../helpers';

import {CHANNEL_OPTIONS, ITEMS_PER_PAGE} from '../constants';
import {renderGroup, renderNumber, renderNumberWithPoint, renderQuota, renderQuotaWithPrompt} from '../helpers/render';
import {
    Avatar,
    Tag,
    Table,
    Button,
    Popover,
    Form,
    Modal,
    Popconfirm,
    Space,
    Tooltip,
    Switch,
    Typography, InputNumber, Dropdown, SplitButtonGroup
} from "@douyinfe/semi-ui";
import EditChannel from "../pages/Channel/EditChannel";
import {IconTreeTriangleDown} from "@douyinfe/semi-icons";

function renderTimestamp(timestamp) {
    return (
        <>
            {timestamp2string(timestamp)}
        </>
    );
}

let type2label = undefined;

function renderType(type) {
    if (!type2label) {
        type2label = new Map;
        for (let i = 0; i < CHANNEL_OPTIONS.length; i++) {
            type2label[CHANNEL_OPTIONS[i].value] = CHANNEL_OPTIONS[i];
        }
        type2label[0] = {value: 0, text: '未知类型', color: 'grey'};
    }
    return <Tag size='large' color={type2label[type]?.color}>{type2label[type]?.text}</Tag>;
}

function renderBalance(type, balance) {
    switch (type) {
        case 1: // OpenAI
            return <span>${balance.toFixed(2)}</span>;
        case 4: // CloseAI
            return <span>¥{balance.toFixed(2)}</span>;
        case 8: // 自定义
            return <span>${balance.toFixed(2)}</span>;
        case 5: // OpenAI-SB
            return <span>¥{(balance / 10000).toFixed(2)}</span>;
        case 10: // AI Proxy
            return <span>{renderNumber(balance)}</span>;
        case 12: // API2GPT
            return <span>¥{balance.toFixed(2)}</span>;
        case 13: // AIGC2D
            return <span>{renderNumber(balance)}</span>;
        default:
            return <span>不支持</span>;
    }
}

const ChannelsTable = () => {
    const columns = [
        // {
        //     title: '',
        //     dataIndex: 'checkbox',
        //     className: 'checkbox',
        // },
        {
            title: 'ID',
            dataIndex: 'id',
        },
        {
            title: '名称',
            dataIndex: 'name',
        },
        {
            title: '分组',
            dataIndex: 'group',
            render: (text, record, index) => {
                return (
                    <div>
                        <Space spacing={2}>
                            {
                                text.split(',').map((item, index) => {
                                    return (renderGroup(item))
                                })
                            }
                        </Space>
                    </div>
                );
            },
        },
        {
            title: '类型',
            dataIndex: 'type',
            render: (text, record, index) => {
                return (
                    <div>
                        {renderType(text)}
                    </div>
                );
            },
        },
        {
            title: '状态',
            dataIndex: 'status',
            render: (text, record, index) => {
                return (
                    <div>
                        {renderStatus(text)}
                    </div>
                );
            },
        },
        {
            title: '响应时间',
            dataIndex: 'response_time',
            render: (text, record, index) => {
                return (
                    <div>
                        {renderResponseTime(text)}
                    </div>
                );
            },
        },
        {
            title: '已用/剩余',
            dataIndex: 'expired_time',
            render: (text, record, index) => {
                return (
                    <div>
                        <Space spacing={1}>
                            <Tooltip content={'已用额度'}>
                                <Tag color='white' type='ghost' size='large'>{renderQuota(record.used_quota)}</Tag>
                            </Tooltip>
                            <Tooltip content={'剩余额度' + record.balance + '，点击更新'}>
                                <Tag color='white' type='ghost' size='large' onClick={() => {updateChannelBalance(record)}}>${renderNumberWithPoint(record.balance)}</Tag>
                            </Tooltip>
                        </Space>
                    </div>
                );
            },
        },
        {
            title: '优先级',
            dataIndex: 'priority',
            render: (text, record, index) => {
                return (
                    <div>
                        <InputNumber
                            style={{width: 70}}
                            name='priority'
                            onChange={value => {
                                manageChannel(record.id, 'priority', record, value);
                            }}
                            defaultValue={record.priority}
                            min={-999}
                        />
                    </div>
                );
            },
        },
        {
            title: '权重',
            dataIndex: 'weight',
            render: (text, record, index) => {
                return (
                    <div>
                        <InputNumber
                            style={{width: 70}}
                            name='weight'
                            onChange={value => {
                                manageChannel(record.id, 'weight', record, value);
                            }}
                            defaultValue={record.weight}
                            min={0}
                        />
                    </div>
                );
            },
        },
        {
            title: '',
            dataIndex: 'operate',
            render: (text, record, index) => (
                <div>
                    <SplitButtonGroup style={{marginRight: 1}} aria-label="测试操作项目组">
                        <Button theme="light" onClick={()=>{testChannel(record, '')}}>测试</Button>
                        <Dropdown trigger="click" position="bottomRight" menu={record.test_models}
                        >
                            <Button style={ { padding: '8px 4px'}} type="primary" icon={<IconTreeTriangleDown />}></Button>
                        </Dropdown>
                    </SplitButtonGroup>
                    {/*<Button theme='light' type='primary' style={{marginRight: 1}} onClick={()=>testChannel(record)}>测试</Button>*/}
                    <Popconfirm
                        title="确定是否要删除此渠道？"
                        content="此修改将不可逆"
                        okType={'danger'}
                        position={'left'}
                        onConfirm={() => {
                            manageChannel(record.id, 'delete', record).then(
                                () => {
                                    removeRecord(record.id);
                                }
                            )
                        }}
                    >
                        <Button theme='light' type='danger' style={{marginRight: 1}}>删除</Button>
                    </Popconfirm>
                    {
                        record.status === 1 ?
                            <Button theme='light' type='warning' style={{marginRight: 1}} onClick={
                                async () => {
                                    manageChannel(
                                        record.id,
                                        'disable',
                                        record
                                    )
                                }
                            }>禁用</Button> :
                            <Button theme='light' type='secondary' style={{marginRight: 1}} onClick={
                                async () => {
                                    manageChannel(
                                        record.id,
                                        'enable',
                                        record
                                    );
                                }
                            }>启用</Button>
                    }
                    <Button theme='light' type='tertiary' style={{marginRight: 1}} onClick={
                        () => {
                            setEditingChannel(record);
                            setShowEdit(true);
                        }
                    }>编辑</Button>
                </div>
            ),
        },
    ];

    const [channels, setChannels] = useState([]);
    const [loading, setLoading] = useState(true);
    const [activePage, setActivePage] = useState(1);
    const [idSort, setIdSort] = useState(false);
    const [searchKeyword, setSearchKeyword] = useState('');
    const [searchGroup, setSearchGroup] = useState('');
    const [searching, setSearching] = useState(false);
    const [updatingBalance, setUpdatingBalance] = useState(false);
    const [pageSize, setPageSize] = useState(ITEMS_PER_PAGE);
    const [showPrompt, setShowPrompt] = useState(shouldShowPrompt("channel-test"));
    const [channelCount, setChannelCount] = useState(pageSize);
    const [groupOptions, setGroupOptions] = useState([]);
    const [showEdit, setShowEdit] = useState(false);
    const [enableBatchDelete, setEnableBatchDelete] = useState(false);
    const [editingChannel, setEditingChannel] = useState({
        id: undefined,
    });
    const [selectedChannels, setSelectedChannels] = useState([]);

    const removeRecord = id => {
        let newDataSource = [...channels];
        if (id != null) {
            let idx = newDataSource.findIndex(data => data.id === id);

            if (idx > -1) {
                newDataSource.splice(idx, 1);
                setChannels(newDataSource);
            }
        }
    };

    const setChannelFormat = (channels) => {
        for (let i = 0; i < channels.length; i++) {
            channels[i].key = '' + channels[i].id;
            let test_models = []
            channels[i].models.split(',').forEach((item, index) => {
                test_models.push({
                    node: 'item',
                    name: item,
                    onClick: () => {
                        testChannel(channels[i], item)
                    }
                })
            })
            channels[i].test_models = test_models
        }
        // data.key = '' + data.id
        setChannels(channels);
        if (channels.length >= pageSize) {
            setChannelCount(channels.length + pageSize);
        } else {
            setChannelCount(channels.length);
        }
    }

    const loadChannels = async (startIdx, pageSize, idSort) => {
        setLoading(true);
        const res = await API.get(`/api/channel/?p=${startIdx}&page_size=${pageSize}&id_sort=${idSort}`);
        const {success, message, data} = res.data;
        if (success) {
            if (startIdx === 0) {
                setChannelFormat(data);
            } else {
                let newChannels = [...channels];
                newChannels.splice(startIdx * pageSize, data.length, ...data);
                setChannelFormat(newChannels);
            }
        } else {
            showError(message);
        }
        setLoading(false);
    };

    const refresh = async () => {
        await loadChannels(activePage - 1, pageSize, idSort);
    };

    useEffect(() => {
        // console.log('default effect')
        const localIdSort = localStorage.getItem('id-sort') === 'true';
        setIdSort(localIdSort)
        loadChannels(0, pageSize, localIdSort)
            .then()
            .catch((reason) => {
                showError(reason);
            });
        fetchGroups().then();
    }, []);

    // useEffect(() => {
    //     console.log('search effect')
    //     searchChannels()
    // }, [searchGroup]);

    // useEffect(() => {
    //     localStorage.setItem('id-sort', idSort + '');
    //     refresh()
    // }, [idSort]);

    const manageChannel = async (id, action, record, value) => {
        let data = {id};
        let res;
        switch (action) {
            case 'delete':
                res = await API.delete(`/api/channel/${id}/`);
                break;
            case 'enable':
                data.status = 1;
                res = await API.put('/api/channel/', data);
                break;
            case 'disable':
                data.status = 2;
                res = await API.put('/api/channel/', data);
                break;
            case 'priority':
                if (value === '') {
                    return;
                }
                data.priority = parseInt(value);
                res = await API.put('/api/channel/', data);
                break;
            case 'weight':
                if (value === '') {
                    return;
                }
                data.weight = parseInt(value);
                if (data.weight < 0) {
                    data.weight = 0;
                }
                res = await API.put('/api/channel/', data);
                break;
        }
        const {success, message} = res.data;
        if (success) {
            showSuccess('操作成功完成！');
            let channel = res.data.data;
            let newChannels = [...channels];
            if (action === 'delete') {

            } else {
                record.status = channel.status;
            }
            setChannels(newChannels);
        } else {
            showError(message);
        }
    };

    const renderStatus = (status) => {
        switch (status) {
            case 1:
                return <Tag size='large' color='green'>已启用</Tag>;
            case 2:
                return (
                    <Tag size='large' color='yellow'>
                        已禁用
                    </Tag>
                );
            case 3:
                return (
                    <Tag size='large' color='yellow'>
                        自动禁用
                    </Tag>
                );
            default:
                return (
                    <Tag size='large' color='grey'>
                        未知状态
                    </Tag>
                );
        }
    };

    const renderResponseTime = (responseTime) => {
        let time = responseTime / 1000;
        time = time.toFixed(2) + ' 秒';
        if (responseTime === 0) {
            return <Tag size='large' color='grey'>未测试</Tag>;
        } else if (responseTime <= 1000) {
            return <Tag size='large' color='green'>{time}</Tag>;
        } else if (responseTime <= 3000) {
            return <Tag size='large' color='lime'>{time}</Tag>;
        } else if (responseTime <= 5000) {
            return <Tag size='large' color='yellow'>{time}</Tag>;
        } else {
            return <Tag size='large' color='red'>{time}</Tag>;
        }
    };

    const searchChannels = async (searchKeyword, searchGroup) => {
        if (searchKeyword === '' && searchGroup === '') {
            // if keyword is blank, load files instead.
            await loadChannels(0, pageSize, idSort);
            setActivePage(1);
            return;
        }
        setSearching(true);
        const res = await API.get(`/api/channel/search?keyword=${searchKeyword}&group=${searchGroup}`);
        const {success, message, data} = res.data;
        if (success) {
            setChannels(data);
            setActivePage(1);
        } else {
            showError(message);
        }
        setSearching(false);
    };

    const testChannel = async (record, model) => {
        const res = await API.get(`/api/channel/test/${record.id}?model=${model}`);
        const {success, message, time} = res.data;
        if (success) {
            record.response_time = time * 1000;
            record.test_time = Date.now() / 1000;
            showInfo(`通道 ${record.name} 测试成功，耗时 ${time.toFixed(2)} 秒。`);
        } else {
            showError(message);
        }
    };

    const testAllChannels = async () => {
        const res = await API.get(`/api/channel/test`);
        const {success, message} = res.data;
        if (success) {
            showInfo('已成功开始测试所有通道，请刷新页面查看结果。');
        } else {
            showError(message);
        }
    };

    const deleteAllDisabledChannels = async () => {
        const res = await API.delete(`/api/channel/disabled`);
        const {success, message, data} = res.data;
        if (success) {
            showSuccess(`已删除所有禁用渠道，共计 ${data} 个`);
            await refresh();
        } else {
            showError(message);
        }
    };

    const updateChannelBalance = async (record) => {
        const res = await API.get(`/api/channel/update_balance/${record.id}/`);
        const {success, message, balance} = res.data;
        if (success) {
            record.balance = balance;
            record.balance_updated_time = Date.now() / 1000;
            showInfo(`通道 ${record.name} 余额更新成功！`);
        } else {
            showError(message);
        }
    };

    const updateAllChannelsBalance = async () => {
        setUpdatingBalance(true);
        const res = await API.get(`/api/channel/update_balance`);
        const {success, message} = res.data;
        if (success) {
            showInfo('已更新完毕所有已启用通道余额！');
        } else {
            showError(message);
        }
        setUpdatingBalance(false);
    };

    const batchDeleteChannels = async () => {
        if (selectedChannels.length === 0) {
            showError('请先选择要删除的通道！');
            return;
        }
        setLoading(true);
        let ids = [];
        selectedChannels.forEach((channel) => {
            ids.push(channel.id);
        });
        const res = await API.post(`/api/channel/batch`, {ids: ids});
        const {success, message, data} = res.data;
        if (success) {
            showSuccess(`已删除 ${data} 个通道！`);
            await refresh();
        } else {
            showError(message);
        }
        setLoading(false);
    }

    const fixChannelsAbilities = async () => {
        const res = await API.post(`/api/channel/fix`);
        const {success, message, data} = res.data;
        if (success) {
            showSuccess(`已修复 ${data} 个通道！`);
            await refresh();
        } else {
            showError(message);
        }
    }

    const sortChannel = (key) => {
        if (channels.length === 0) return;
        setLoading(true);
        let sortedChannels = [...channels];
        if (typeof sortedChannels[0][key] === 'string') {
            sortedChannels.sort((a, b) => {
                return ('' + a[key]).localeCompare(b[key]);
            });
        } else {
            sortedChannels.sort((a, b) => {
                if (a[key] === b[key]) return 0;
                if (a[key] > b[key]) return -1;
                if (a[key] < b[key]) return 1;
            });
        }
        if (sortedChannels[0].id === channels[0].id) {
            sortedChannels.reverse();
        }
        setChannels(sortedChannels);
        setLoading(false);
    };

    let pageData = channels.slice((activePage - 1) * pageSize, activePage * pageSize);

    const handlePageChange = page => {
        setActivePage(page);
        if (page === Math.ceil(channels.length / pageSize) + 1) {
            // In this case we have to load more data and then append them.
            loadChannels(page - 1, pageSize, idSort).then(r => {
            });
        }
    };

    const handlePageSizeChange = async(size) => {
        setPageSize(size)
        setActivePage(1)
        loadChannels(0, size, idSort)
            .then()
            .catch((reason) => {
                showError(reason);
            })
    };

    const fetchGroups = async () => {
        try {
            let res = await API.get(`/api/group/`);
            // add 'all' option
            // res.data.data.unshift('all');
            setGroupOptions(res.data.data.map((group) => ({
                label: group,
                value: group,
            })));
        } catch (error) {
            showError(error.message);
        }
    };

    const closeEdit = () => {
        setShowEdit(false);
    }

    const handleRow = (record, index) => {
        if (record.status !== 1) {
            return {
                style: {
                    background: 'var(--semi-color-disabled-border)',
                },
            };
        } else {
            return {};
        }
    };


    return (
        <>
            <EditChannel refresh={refresh} visible={showEdit} handleClose={closeEdit} editingChannel={editingChannel}/>
            <Form onSubmit={() => {searchChannels(searchKeyword, searchGroup)}} labelPosition='left'>

                <div style={{display: 'flex'}}>
                    <Space>
                        <Form.Input
                            field='search'
                            label='关键词'
                            placeholder='ID，名称和密钥 ...'
                            value={searchKeyword}
                            loading={searching}
                            onChange={(v)=>{
                                setSearchKeyword(v.trim())
                            }}
                        />
                        <Form.Select field="group" label='分组' optionList={groupOptions} onChange={(v) => {
                            setSearchGroup(v)
                            searchChannels(searchKeyword, v)
                        }}/>
                    </Space>
                </div>
            </Form>
            <div style={{marginTop: 10, display: 'flex'}}>
                <Space>
                    <Space>
                        <Typography.Text strong>使用ID排序</Typography.Text>
                        <Switch checked={idSort} label='使用ID排序' uncheckedText="关" aria-label="是否用ID排序" onChange={(v) => {
                            localStorage.setItem('id-sort', v + '')
                            setIdSort(v)
                            loadChannels(0, pageSize, v)
                                .then()
                                .catch((reason) => {
                                    showError(reason);
                                })
                        }}></Switch>
                    </Space>
                </Space>
            </div>

            <Table style={{marginTop: 15}} columns={columns} dataSource={pageData} pagination={{
                currentPage: activePage,
                pageSize: pageSize,
                total: channelCount,
                pageSizeOpts: [10, 20, 50, 100],
                showSizeChanger: true,
                formatPageText:(page) => '',
                onPageSizeChange: (size) => {
                    handlePageSizeChange(size).then()
                },
                onPageChange: handlePageChange,
            }} loading={loading} onRow={handleRow} rowSelection={
                enableBatchDelete ?
                {
                    onChange: (selectedRowKeys, selectedRows) => {
                        // console.log(`selectedRowKeys: ${selectedRowKeys}`, 'selectedRows: ', selectedRows);
                        setSelectedChannels(selectedRows);
                    },
                } : null
            }/>
            <div style={{display: isMobile()?'':'flex', marginTop: isMobile()?0:-45, zIndex: 999, position: 'relative', pointerEvents: 'none'}}>
                <Space style={{pointerEvents: 'auto'}}>
                    <Button theme='light' type='primary' style={{marginRight: 8}} onClick={
                        () => {
                            setEditingChannel({
                                id: undefined,
                            });
                            setShowEdit(true)
                        }
                    }>添加渠道</Button>
                    <Popconfirm
                        title="确定？"
                        okType={'warning'}
                        onConfirm={testAllChannels}
                        position={isMobile()?'top':'top'}
                    >
                        <Button theme='light' type='warning' style={{marginRight: 8}}>测试所有通道</Button>
                    </Popconfirm>
                    <Popconfirm
                        title="确定？"
                        okType={'secondary'}
                        onConfirm={updateAllChannelsBalance}
                    >
                        <Button theme='light' type='secondary' style={{marginRight: 8}}>更新所有已启用通道余额</Button>
                    </Popconfirm>
                    <Popconfirm
                        title="确定是否要删除禁用通道？"
                        content="此修改将不可逆"
                        okType={'danger'}
                        onConfirm={deleteAllDisabledChannels}
                    >
                        <Button theme='light' type='danger' style={{marginRight: 8}}>删除禁用通道</Button>
                    </Popconfirm>

                    <Button theme='light' type='primary' style={{marginRight: 8}} onClick={refresh}>刷新</Button>
                </Space>
                {/*<div style={{width: '100%', pointerEvents: 'none', position: 'absolute'}}>*/}

                {/*</div>*/}
            </div>
            <div style={{marginTop: 20}}>
                <Space>
                    <Typography.Text strong>开启批量删除</Typography.Text>
                    <Switch label='开启批量删除' uncheckedText="关" aria-label="是否开启批量删除" onChange={(v) => {
                        setEnableBatchDelete(v)
                    }}></Switch>
                    <Popconfirm
                        title="确定是否要删除所选通道？"
                        content="此修改将不可逆"
                        okType={'danger'}
                        onConfirm={batchDeleteChannels}
                        disabled={!enableBatchDelete}
                        position={'top'}
                    >
                        <Button disabled={!enableBatchDelete} theme='light' type='danger' style={{marginRight: 8}}>删除所选通道</Button>
                    </Popconfirm>
                    <Popconfirm
                        title="确定是否要修复数据库一致性？"
                        content="进行该操作时，可能导致渠道访问错误，请仅在数据库出现问题时使用"
                        okType={'warning'}
                        onConfirm={fixChannelsAbilities}
                        position={'top'}
                    >
                        <Button theme='light' type='secondary' style={{marginRight: 8}}>修复数据库一致性</Button>
                    </Popconfirm>
                </Space>
            </div>
        </>
    );
};

export default ChannelsTable;