import QtQuick 2.15
import QtQuick.Layouts
import FluentUI
import QtQuick.Dialogs
import "qrc:///AicsKnowledgeBase/qml/global"
import SignalFileOperation 1.0

Item {
    anchors.fill: parent
    signal search(string tag)
    signal open(string file)
    property bool disableHeader: false
    property bool autoRequest: false
    property string url: "http://127.0.0.1:4523/m1/2914957-0-5604d062/"
    property ListModel dataModel: ListModel {}
    function setListData(listmodel) {
        listView.model = listmodel
    }

    ListView {
        id: listView
        anchors.fill: parent
        spacing: 10
        header: disableHeader ? null : fileListItemHeader
        model: fileListModel
        delegate: fileListItemDelegate
        Component.onCompleted: {
            if (autoRequest) {
                update()
            } else {
                listView.model = dataModel
            }
        }
    }

    Component {
        id: fileListItemHeader

        RowLayout {
            id: fileListItemHeaderItem
            width: ListView.view.width
            height: 48

            // back to folder button
            FluIconButton {
                Layout.alignment: Qt.AlignVCenter
                id: backButton
                width: 24
                height: 24
                iconSource: FluentIcons.ForwardCall
                onClicked: {
                    if (header.count() > 0) {
                        header.items = header.items.slice(0, header.count() - 1)
                    }
                    fileListItemHeaderItem.update()
                }
            }
            FluBreadcrumbBar {
                id: header
                //width: parent.width
                height: parent.height
                separator: ">"
                items: []
                onClickItem: function (model) {
                    if (model.index + 1 !== count()) {
                        items = items.slice(0, model.index + 1)
                    }
                }
                onItemsChanged: {
                    fileListItemHeaderItem.update()
                }
            }

            FluButton {
                Layout.alignment: Qt.AlignRight
                text: "上传"
                onClicked: function () {
                    console.log("click")
                    fileDialog.open()
                }

                FileDialog {
                    id: fileDialog
                    onAccepted: function () {
                        const size = FileTransferManager.getFileSize(
                                       selectedFile)
                        const md5 = FileTransferManager.getFileMd5(selectedFile)

                        if (size <= 0 || md5 === '')
                            return

                        var body = {
                            "name": "test2",
                            "brief": "brief",
                            "size": size,
                            "md5": md5,
                            "tags": [],
                            "parentId": null
                        }
                        console.log("begin")
                        console.log(JSON.stringify(body))

                        Request.post("knowledge/file", JSON.stringify(body),
                                     function (res, data) {
                                         console.log(res)
                                         console.log(data)
                                         FileTransferManager.upload(
                                                     selectedFile, data.id,
                                                     data.ticket)
                                     }, function (res, data) {
                                         console.log(res)
                                     })
                    }
                }
            }

            function add(folderName, uuid) {
                console.log(header.items)
                header.items = header.items.concat([{
                                                        "title": folderName,
                                                        "uuid": uuid
                                                    }])
            }

            function getType(suffix) {
                if (suffix === "ppt" || suffix === "pptx")
                    return "PPT"
                else if (suffix === "doc" || suffix === "docx")
                    return "WORD"
            }

            function update() {
                var uuid = header.items.length
                        === 0 ? "null" : header.items[header.items.length - 1].uuid
                Request.get(uuid, function (response) {
                    var data = JSON.parse(response)
                    console.log(data.knowledgeFileAttribute)
                    fileListModel.clear()
                    var files = data.children
                    for (var i = 0; i < files.length; i++) {
                        var file = files[i]
                        console.log(file.name)
                        var modelItem = {
                            "title": file.name,
                            "uuid": file.id,
                            "date": file.createTime
                        }
                        if (file.knowledgeFileAttribute === null) {
                            modelItem.type = "folder"
                            modelItem.isDir = true
                            modelItem.size = 0
                        } else {
                            modelItem.isDir = false
                            modelItem.type = getType(
                                        file.knowledgeFileAttribute.suffix)
                            modelItem.size = file.knowledgeFileAttribute.size
                            modelItem.brief = file.knowledgeFileAttribute.brief
                            modelItem.pageView = file.knowledgeFileAttribute.pageView
                            modelItem.stars = 0
                            // merge file.knowledgeFileAttribute.tags array to a string
                            var tagString = ""
                            for (var j = 0; j < file.knowledgeFileAttribute.tags.length; j++) {
                                if (j != 0)
                                    tagString = tagString + ","
                                tagString = tagString + file.knowledgeFileAttribute.tags[j].name
                            }
                            modelItem.tags = tagString
                        }
                        fileListModel.append(modelItem)
                    }
                    console.log(fileListModel)
                    listView.currentIndex = -1
                })
            }
        }
    }
    Component {
        id: fileListItemDelegate
        Rectangle {
            id: fileListItemRect
            width: ListView.view.width
            height: model.isDir ? 50 : 120
            //color: !ListView.isCurrentItem ? "white" : "red"
            FileListItem {
                id: fileListItem
                uuid: model.uuid
                width: parent.width
                height: parent.height
                title: model.title
                isDir: model.isDir
                date: model.date
                brief: isDir ? "" : model.brief
                type: isDir ? "FOLDER" : model.type
                pageView: isDir ? 0 : model.pageView
                size: isDir ? 0 : model.size
                stars: isDir ? 0 : model.stars
                // split string to array
                tags: isDir ? [] : model.tags === null
                              || model.tags === undefined
                              || model.tags === "" ? [] : model.tags.split(",")
                onTagClicked: {
                    emit: search(tag)
                    console.log(tag)
                }
            }
            function doubleClicked() {
                listView.currentIndex = index
                if (model.isDir) {
                    listView.headerItem.add(model.title, model.uuid)
                } else {
                    emit: SignalFileOperation.open(model.uuid)
                }
            }
        }
    }
    ListModel {
        id: fileListModel
        ListElement {
            title: "File 1"
            isDir: true
            brief: "This is a test file"
            type: "FOLDER"
        }
        ListElement {
            uuid: "2"
            title: "File 2"
            isDir: false
            brief: "This is a test file"
            size: 500
            type: "WORD"
            date: "2020-09-09"
            pageView: 100
            stars: 10
        }
        ListElement {
            uuid: "3"
            title: "File 3"
            isDir: false
            brief: "This is a test file"
            type: "PPT"
            date: "2020-09-09"
            pageView: 100
            size: 10200000022
            stars: 10
        }
    }
}