import {createSlice} from '@reduxjs/toolkit'
import {isEmpty} from "../utils/ObjectUtils";
/*
        "fileName": filePath,
        "filePath": filePath,
        "dirFlag": true,
        "childList": fileChildList
 */
export const dirMessageSlice = createSlice({
    name: 'dirMessage',
    initialState: {
        data: [],
        // selectDirKey:""
    },
    reducers: {
        dirAdd: (state, action) => {
            console.log("dirMessage:dirAdd", state, action)
            if (action.payload) {
                // 新添加进来的目录，要判断是否包含或者被包含，如果包含则统一树结构
                let fileFilter = state.data.filter((fileMessage) =>
                    fileMessage.filePath.startsWith(action.payload[0].filePath)
                );
                let actionFilter = state.data.filter((fileMessage) =>
                    action.payload[0].filePath.startsWith(fileMessage.filePath)
                );
                let equalsFilter = state.data.filter((fileMessage) =>
                    action.payload[0].filePath===fileMessage.filePath
                );
                // 打开相同目录不用处理
                if (equalsFilter.length > 0) {
                    console.log('equalsFilter', filter)
                }
                // 打开上级目录
                else if (actionFilter.length>0){

                }
                // 打开下级目录
                else if (fileFilter.length>0){

                }
                // 无关目录
                else {
                    // 添加进当前目录
                    state.data = [...new Set([...state.data, ...action.payload])];
                    console.log('state.data:', state.data)
                }
            }
        },
        dirRemove:(state,action)=>{
            console.log("dirMessage:dirRemove", state, action)
            // 获取当前选中的key
            let selectDirKey = action.payload.selectDirKey;
            state.data = state.data.filter(file=>{
                if (file.filePath === selectDirKey && file.dirFlag) {
                    return false;
                } else if (file.childList.length > 0 && selectDirKey.startsWith(file.filePath)) {
                    file.childList = filterChild(file.childList, selectDirKey)
                    return true;
                }else {
                    return true;
                }
            })
        },
        nextDirAdd: (state, action) => {
            console.log("dirMessage:nextDirAdd", state, action)
            // 获取当前选中的key
            let selectDirKey = action.payload.selectDirKey;
            // 便利文件树，找到对应的key并加入其中，
            // 如果包含下级目录则不更新，在刷新中更新。
            state.data.forEach(file => {
                if (file.filePath === selectDirKey && file.dirFlag && file.childList.length === 0) {
                    file.childList.push(action.payload.fileStateList[0].childList)
                } else if (file.childList.length > 0) {
                    findChild(file.childList, action, selectDirKey)
                }
            })
        },
        updateFileName:(state,action)=>{
            console.log("dirMessage:updateFileName", state, action)
            let newFilePath = action.payload.newFilePath
            let oldFilePath = action.payload.oldFilePath
            // 查找旧文件并且修改文件信息
            state.data.forEach(file => {
                if (file.filePath === oldFilePath) {
                    file.filePath = newFilePath
                    file.fileName = newFilePath.substring(newFilePath.lastIndexOf("/")+1)
                } else if (file.childList.length > 0 && oldFilePath.startsWith(file.filePath)) {
                    updateFileNameChild(file.childList, oldFilePath, newFilePath)
                }
            })
        },
        dirFileAdd:(state,action)=>{
            console.log("dirMessage:dirFileAdd", state, action)
            let filePath = action.payload.filePath
            let fileName = action.payload.fileName
            let fileMessage = {
                "fileName": fileName.replace(filePath+"/",""),
                "filePath": fileName,
                "dirFlag": false,
                "childList": []
            }
            // 查找旧文件并且修改文件信息
            state.data.forEach(file => {
                if (file.filePath === filePath) {
                    if (Array.isArray(file.children)){
                        file.children.push(fileMessage)
                    }else {
                        file.children=[fileMessage]
                    }
                } else if (file.childList.length > 0 && file.filePath.startsWith(filePath)) {
                    dirFileAddChild(file.childList, filePath, fileMessage)
                }
            })
        },
        dirFileRemove:(state,action)=>{
            let filePath = action.payload.filePath;
            state.data = state.data.filter(file=>{
                if (file.filePath === filePath && !file.dirFlag) {
                    return false;
                } else if (file.childList.length > 0 && filePath.startsWith(file.filePath)) {
                    file.childList = dirFileRemoveChild(file.childList, filePath)
                    return true;
                }else {
                    return true;
                }
            })
        }
    }
})

function dirFileRemoveChild(fileList, selectDirKey) {
    return fileList.filter(file => {
        if (file.filePath === selectDirKey && !file.dirFlag) {
            return false
        }else if (file.dirFlag && selectDirKey.startsWith(file.filePath) && Array.isArray(file.childList) && file.childList.length > 0) {
            dirFileRemoveChild(file.childList, selectDirKey)
            return true
        }else {
            return true
        }
    })
}

function dirFileAddChild(fileList, filePath, fileMessage){
    fileList.forEach(file => {
        if (file.filePath === filePath) {
            if (Array.isArray(file.children)){
                file.children.push(fileMessage)
            }else {
                file.children=[fileMessage]
            }
        } else if (file.childList.length > 0 && file.filePath.startsWith(filePath)) {
            dirFileAddChild(file.childList, filePath, fileMessage)
        }
    })
}
function filterChild(fileList, selectDirKey) {
    return fileList.filter(file => {
        if (file.filePath === selectDirKey && file.dirFlag) {
            return false
        }else if (file.dirFlag && selectDirKey.startsWith(file.filePath) && Array.isArray(file.childList) && file.childList.length > 0) {
            filterChild(file.childList, selectDirKey)
            return true
        }else {
            return true
        }
    })
}

function findChild(fileList, action, selectDirKey) {
    fileList.forEach(file => {
        if (file.filePath === selectDirKey && file.dirFlag &&
            (isEmpty(file.childList) || (Array.isArray(file.childList) && file.childList.length === 0))) {
            file.childList = action.payload.fileStateList[0].childList
            return
        }
        if (file.dirFlag && Array.isArray(file.childList) && file.childList.length > 0) {
            findChild(file.childList, action, selectDirKey)
        }
    })
}

function updateFileNameChild(fileList, oldFilePath, newFilePath) {
    fileList.forEach(file => {
        if (file.filePath === oldFilePath) {
            file.filePath = newFilePath
            file.fileName = newFilePath.substring(newFilePath.lastIndexOf("/")+1)
            return
        }else if (Array.isArray(file.childList) && file.childList.length > 0 && oldFilePath.startsWith(file.filePath)) {
            updateFileNameChild(file.childList, oldFilePath, newFilePath)
        }
    })
}

export const {
    dirAdd,
    nextDirAdd,
    dirRemove,
    updateFileName,
    dirFileAdd,
    dirFileRemove,
} = dirMessageSlice.actions

export default dirMessageSlice.reducer