import QtQuick
import QtQuick.Controls
import QtQuick.Layouts
import Flora

ApplicationWindow {
    id: window
    width: 1280
    height: 800
    minimumWidth: 900
    minimumHeight: 600
    visible: true
    title: "Flora"
    color: Theme.bg
    palette.window: Theme.bg
    palette.windowText: Theme.text
    palette.base: Theme.surface
    palette.text: Theme.text
    palette.highlight: Theme.accent
    palette.highlightedText: "white"

    property string windowVault: ""

    readonly property string activeVault: {
        if (fileStore.ready) return fileStore.vault
        if (windowVault.length > 0) return windowVault
        return vaultManager.currentVault
    }

    WelcomeWizard {
        id: welcomeWizard
        firstRun: vaultManager.vaults.length === 0
        onFinished: {
            if (fileStore.ready) {
                windowController.openWindow(welcomeWizard.vaultPath)
            } else {
                fileStore.openVault(welcomeWizard.vaultPath)
                root_status("Хранилище открыто")
            }
        }
    }

    function openWizard() {
        welcomeWizard.firstRun = false
        welcomeWizard.open()
    }

    function root_status(msg, ok) {
        // статус можно показать в UI, пока просто игнорируем
    }

    Component.onCompleted: {
        if (windowVault.length > 0) {
            fileStore.openVault(windowVault)
        } else if (vaultManager.currentVault.length > 0) {
            fileStore.openVault(vaultManager.currentVault)
        }
        if (vaultManager.vaults.length === 0) {
            welcomeWizard.open()
        }
    }

    menuBar: MenuBar {
        // Переопределяем цвета под тему (Basic стиль не красит сам)
        background: Rectangle { color: Theme.bgAlt; border.color: Theme.divider }
        Menu {
            title: qsTr("&Файл")
            Action { text: qsTr("Добавить хранилище…"); onTriggered: window.openWizard() }
            Menu {
                title: qsTr("Экспорт")
                Action { text: qsTr("В HTML…"); enabled: false }
                Action { text: qsTr("В PDF…"); enabled: false }
            }
            MenuSeparator { }
            Action { text: qsTr("Выход"); onTriggered: window.close() }
        }
        Menu {
            title: qsTr("&Правка")
            Action { text: qsTr("Отменить"); shortcut: "Ctrl+Z"; enabled: false }
            Action { text: qsTr("Повторить"); shortcut: "Ctrl+Shift+Z"; enabled: false }
            MenuSeparator { }
            Action {
                text: qsTr("История файла…")
                shortcut: "Ctrl+H"
                enabled: documentManager.activeIndex >= 0 && fileStore.ready
                onTriggered: {
                    const p = documentManager.pathAt(documentManager.activeIndex)
                    if (p.length>0) {
                        historyDialog.vaultPath = fileStore.vault
                        historyDialog.filePath = p
                        historyDialog.open()
                    }
                }
            }
            Action {
                text: qsTr("Вернуться к предыдущей версии…")
                enabled: documentManager.activeIndex >= 0 && fileStore.ready
                onTriggered: {
                    const p = documentManager.pathAt(documentManager.activeIndex)
                    if (p.length>0) {
                        historyDialog.vaultPath = fileStore.vault
                        historyDialog.filePath = p
                        historyDialog.open()
                    }
                }
            }
        }
        Menu {
            title: qsTr("&Вид")
            ActionGroup { id: themeGroup }
            Action {
                text: qsTr("Светлая тема")
                checkable: true
                checked: settingsStore.theme !== "dark"
                ActionGroup.group: themeGroup
                onTriggered: settingsStore.theme = "light"
            }
            Action {
                text: qsTr("Тёмная тема")
                checkable: true
                checked: settingsStore.theme === "dark"
                ActionGroup.group: themeGroup
                onTriggered: settingsStore.theme = "dark"
            }
            MenuSeparator { }
            Action {
                text: qsTr("Сбросить ширины панелей")
                onTriggered: {
                    settingsStore.leftPanelWidth = 220
                    settingsStore.rightPanelWidth = 220
                    leftPanel.width = 220
                    rightPanel.width = 220
                }
            }
        }
        Menu {
            title: qsTr("&Справка")
            Action {
                text: qsTr("О программе")
                onTriggered: aboutDialog.open()
            }
        }
    }

    Dialog {
        id: aboutDialog
        title: qsTr("О программе")
        standardButtons: Dialog.Ok
        modal: true
        anchors.centerIn: parent
        background: Rectangle { color: Theme.surface; border.color: Theme.border; radius: 8 }
        Label {
            color: Theme.text
            text: "Flora\nМинималистичный markdown-заметочник (GPL-3.0)\n"
                  + "Версия " + Qt.application.version
        }
    }

    HistoryDialog {
        id: historyDialog
        onRestored: {
            // после восстановления обновляем граф и статус
            if (fileStore.ready) vaultIndex.rebuild(fileStore.vault)
        }
    }

    Popup {
        id: vaultSwitcher
        x: 12
        y: window.height - height - 12
        width: 340
        modal: false
        closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutside
        background: Rectangle { color: Theme.surface; border.color: Theme.borderStrong; radius: 8 }

        ColumnLayout {
            width: parent.width
            spacing: 8

            Label {
                text: qsTr("Хранилища")
                font.bold: true
                color: Theme.text
            }

            ListView {
                id: vaultList
                Layout.preferredHeight: Math.min(200, contentHeight)
                Layout.fillWidth: true
                model: vaultManager.vaults
                clip: true
                ScrollBar.vertical: ScrollBar {}
                delegate: ItemDelegate {
                    width: ListView.view.width
                    text: modelData
                    highlighted: modelData === window.activeVault
                    palette.highlight: Theme.accent
                    onClicked: {
                        if (modelData === window.activeVault) {
                            vaultSwitcher.close()
                        } else {
                            vaultManager.selectVault(modelData)
                            windowController.openWindow(modelData)
                            vaultSwitcher.close()
                        }
                    }
                }
            }

            Label {
                visible: vaultList.count === 0
                text: qsTr("Хранилищ пока нет")
                color: Theme.textMuted
            }

            Label {
                text: qsTr("Текущее: %1").arg(window.activeVault.length > 0
                                               ? window.activeVault : "—")
                color: Theme.textSecondary
                elide: Text.ElideMiddle
                Layout.fillWidth: true
                font.pixelSize: 11
            }

            Button {
                Layout.fillWidth: true
                text: qsTr("Добавить новое хранилище…")
                onClicked: { vaultSwitcher.close(); window.openWizard() }
            }
        }
    }

    SplitView {
        id: mainSplit
        anchors.fill: parent
        orientation: Qt.Horizontal
        // Увеличенная зона захвата — работает по всей высоте
        handle: Rectangle {
            implicitWidth: 12
            color: "transparent"
            Rectangle {
                anchors.centerIn: parent
                width: 1; height: parent.height
                color: Theme.divider
            }
            Rectangle {
                anchors.fill: parent
                color: "transparent"
                MouseArea {
                    anchors.fill: parent
                    cursorShape: Qt.SplitHCursor
                    hoverEnabled: true
                    onPressed: mouse.accepted = false
                }
            }
        }

        FileTreePanel {
            id: leftPanel
            SplitView.preferredWidth: settingsStore.leftPanelWidth
            SplitView.minimumWidth: 180
            SplitView.maximumWidth: 500
            onWidthChanged: {
                if (width >= 180 && width <= 500)
                    settingsStore.leftPanelWidth = width
            }

            onOpenVaultRequested: vaultSwitcher.open()
            onOpenFileRequested: (path) => {
                if (documentManager.isTextForEditor(path)) {
                    documentManager.openDocument(path)
                } else {
                    leftPanel.showStatus(qsTr("Предпросмотр HTML/PDF/изображений появится в Фазе 6-10"), false)
                }
            }
            onHistoryRequested: (path) => {
                historyDialog.vaultPath = fileStore.vault
                historyDialog.filePath = path
                historyDialog.open()
            }
        }

        EditorPanel {
            id: centerPanel
            SplitView.fillWidth: true
            SplitView.minimumWidth: 300
            height: window.height - (menuBar ? menuBar.height : 0)
            onHistoryRequested: (path) => {
                historyDialog.vaultPath = fileStore.vault
                historyDialog.filePath = path
                historyDialog.open()
            }
        }

        RightPanel {
            id: rightPanel
            SplitView.preferredWidth: settingsStore.rightPanelWidth
            SplitView.minimumWidth: 200
            SplitView.maximumWidth: 500
            onWidthChanged: {
                if (width >= 200 && width <= 500)
                    settingsStore.rightPanelWidth = width
            }
        }
    }
}