// SPDX-FileCopyrightText: 2021 Carl Schwan <carlschwan@kde.org>
// SPDX-License-Identifier: LGPL-2.1-or-later

import QtQml
import QtQuick
import QtQuick.Controls as QQC2
import QtQuick.Layouts
import org.kde.kirigami as Kirigami
import org.kde.sonnet as Sonnet
import org.kde.kirigamiaddons.formcard as FormCard
import org.kde.kirigamiaddons.delegates as Delegates

Kirigami.ScrollablePage {
    id: root

    FormCard.FormHeader {
        title: i18nc("@title", "Spellchecking")
    }
    FormCard.FormCard {
        id: card
        property Sonnet.Settings settings: Sonnet.Settings {
            id: settings
        }
        FormCard.FormCheckDelegate {
            id: enable
            checked: settings.checkerEnabledByDefault
            text: i18n("Enable automatic spell checking")
            onCheckedChanged: {
                settings.checkerEnabledByDefault = checked;
                settings.save();
            }
        }

        FormCard.FormDelegateSeparator {
            below: enable
            above: skipUppercase
        }

        FormCard.FormCheckDelegate {
            id: skipUppercase
            checked: settings.skipUppercase
            text: i18n("Ignore uppercase words")
            onCheckedChanged: {
                settings.skipUppercase = checked;
                settings.save();
            }
        }

        FormCard.FormDelegateSeparator {
            below: skipUppercase
            above: skipRunTogether
        }

        FormCard.FormCheckDelegate {
            id: skipRunTogether
            checked: settings.skipRunTogether
            text: i18n("Ignore hyphenated words")
            onCheckedChanged: {
                settings.skipRunTogether = checked;
                settings.save();
            }
        }

        FormCard.FormDelegateSeparator {
            below: skipRunTogether
            above: autodetectLanguageCheckbox
        }

        FormCard.FormCheckDelegate {
            id: autodetectLanguageCheckbox
            checked: settings.autodetectLanguage
            text: i18n("Detect language automatically")
            onCheckedChanged: {
                settings.autodetectLanguage = checked;
                settings.save();
            }
        }

        FormCard.FormDelegateSeparator {
            below: autodetectLanguageCheckbox
            above: selectedDefaultLanguage
        }

        FormCard.FormComboBoxDelegate {
            id: selectedDefaultLanguage
            text: i18n("Selected default language:")
            model: isEmpty ? [
                {
                    "display": i18n("None")
                }
            ] : settings.dictionaryModel
            textRole: "display"
            displayMode: Kirigami.Settings.isMobile ? FormCard.FormComboBoxDelegate.Dialog : FormCard.FormComboBoxDelegate.Page
            valueRole: "languageCode"
            property bool isEmpty: false
            Component.onCompleted: {
                if (settings.dictionaryModel.rowCount() === 0) {
                    isEmpty = true;
                } else {
                    currentIndex = indexOfValue(settings.defaultLanguage);
                }
            }
            onActivated: settings.defaultLanguage = currentValue
        }

        FormCard.FormDelegateSeparator {
            below: selectedDefaultLanguage
            above: spellCheckingLanguage
        }

        FormCard.FormButtonDelegate {
            id: spellCheckingLanguage
            text: i18n("Additional spell checking languages")
            description: i18n("%1 will provide spell checking and suggestions for the languages listed here when autodetection is enabled.", Qt.application.displayName)
            enabled: autodetectLanguageCheckbox.checked
            onClicked: pageStack.pushDialogLayer(spellCheckingLanguageList, {}, {
                width: pageStack.width - Kirigami.Units.gridUnit * 5,
                height: pageStack.height - Kirigami.Units.gridUnit * 5
            })
        }

        FormCard.FormDelegateSeparator {
            below: spellCheckingLanguageList
            above: personalDictionary
        }

        FormCard.FormButtonDelegate {
            id: personalDictionary
            text: i18n("Open Personal Dictionary")
            onClicked: pageStack.pushDialogLayer(dictionaryPage, {}, {
                width: pageStack.width - Kirigami.Units.gridUnit * 5,
                height: pageStack.height - Kirigami.Units.gridUnit * 5
            })
        }

        property Component spellCheckingLanguageList: Component {
            id: spellCheckingLanguageList
            Kirigami.ScrollablePage {
                id: scroll
                title: i18nc("@title:window", "Spell checking languages")
                ListView {
                    clip: true
                    model: settings.dictionaryModel
                    delegate: QQC2.CheckDelegate {
                        onClicked: model.checked = checked
                        Accessible.description: model.isDefault ? i18n("Default Language") : ''
                        checked: model.checked
                        width: scroll.width
                        contentItem: RowLayout {
                            QQC2.Label {
                                id: label
                                Layout.fillWidth: true
                                text: model.display
                            }
                            Kirigami.Icon {
                                source: "favorite"
                                Layout.rightMargin: Kirigami.Units.largeSpacing * 2
                                visible: model.isDefault
                                HoverHandler {
                                    id: hover
                                }
                                QQC2.ToolTip {
                                    visible: hover.hovered
                                    text: i18n("Default Language")
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    Component {
        id: dictionaryPage
        Kirigami.ScrollablePage {
            title: i18n("Spell checking dictionary")
            footer: QQC2.ToolBar {
                contentItem: RowLayout {
                    QQC2.TextField {
                        id: dictionaryField
                        Layout.fillWidth: true
                        Accessible.name: placeholderText
                        placeholderText: i18n("Add a new word to your personal dictionary…")
                    }
                    QQC2.Button {
                        text: i18nc("@action:button", "Add word")
                        icon.name: "list-add"
                        enabled: dictionaryField.text.length > 0
                        onClicked: {
                            add(dictionaryField.text);
                            dictionaryField.clear();
                            if (instantApply) {
                                settings.save();
                            }
                        }
                        Layout.rightMargin: Kirigami.Units.largeSpacing
                    }
                }
            }
            ListView {
                topMargin: Math.round(Kirigami.Units.smallSpacing / 2)
                bottomMargin: Math.round(Kirigami.Units.smallSpacing / 2)

                model: settings.currentIgnoreList
                delegate: Delegates.RoundedItemDelegate {
                    id: wordDelegate

                    required property var modelData

                    text: modelData

                    contentItem: RowLayout {
                        spacing: Kirigami.Units.smallSpacing

                        Delegates.DefaultContentItem {
                            itemDelegate: wordDelegate
                            Layout.fillWidth: true
                        }

                        QQC2.ToolButton {
                            text: i18nc("@action:button", "Delete word")
                            icon.name: "delete"
                            display: QQC2.ToolButton.IconOnly
                            onClicked: {
                                remove(wordDelegate.modelData);
                                if (instantApply) {
                                    settings.save();
                                }
                            }

                            QQC2.ToolTip.text: text
                            QQC2.ToolTip.visible: hovered
                            QQC2.ToolTip.delay: Kirigami.ToolTip.toolTipDelay
                        }
                    }
                }
            }
        }
    }

    function add(word: string) {
        const dictionary = settings.currentIgnoreList;
        dictionary.push(word);
        settings.currentIgnoreList = dictionary;
    }

    function remove(word: string) {
        settings.currentIgnoreList = settings.currentIgnoreList.filter((value, _, _) => {
            return value !== word;
        });
    }
}