import QtQuick 2.2
import Sailfish.Silica 1.0
import "../js/henflow.js" as HF
import "../js/i18n.js" as I18N
import "../js/catalog.js" as Catalog

// Scheda di una razza allevata: foto, scheda informativa e registro delle
// galline (nome, nascita, eta' in mesi, stato) con interruttore deposizione
// ed eliminazione con annulla.
Page {
    id: page
    allowedOrientations: Orientation.All

    property string breedId: ""
    property string lang: "en"
    property bool ready: false
    property var hens: []

    property string breedName: ""
    property string breedDescription: ""
    property string eggColor: ""
    property int registered: 0
    property int laying: 0
    property real daily: 0

    function tr(key, arg) { return I18N.t(key, arg, page.lang) }

    ListModel { id: henModel }

    function reload() {
        page.lang = I18N.langFor(appSettings.language, Qt.locale().name)

        var breed = Catalog.breedFromId(page.breedId)
        if (breed) {
            page.breedName = page.tr(breed.name)
            page.breedDescription = page.tr(breed.description)
            page.eggColor = page.tr("egg_color") + ": " + page.tr(breed.eggColor)
        }

        var setting = null
        var settings = appData.breedSettings()
        for (var i = 0; i < settings.length; i++) {
            if (settings[i].breedId === page.breedId)
                setting = settings[i]
        }

        page.hens = (setting && setting.hens) ? setting.hens : []
        page.registered = page.hens.length
        page.laying = HF.activeHens({ "hens": page.hens })
        page.daily = page.laying * HF.eggsPerHenPerDay(Catalog.HF_BREEDS, page.breedId)

        var today = HF.todayMidnight()
        henList.clear()
        for (var j = 0; j < page.hens.length; j++) {
            var hen = page.hens[j]
            var birth = HF.parseIso(hen.birthDate)
            var months = birth ? HF.ageInMonths(birth, today) : 0
            var status
            if (months >= 6)
                status = hen.isLaying ? page.tr("status_laying") : page.tr("status_rest")
            else
                status = hen.isLaying ? page.tr("status_laying") : page.tr("status_young")

            henList.append({
                "n": j,
                "name": hen.name,
                "birth": page.tr("birth") + ": " + HF.formatDay(hen.birthDate),
                "age": page.tr("age_months", months),
                "status": status,
                "isLaying": hen.isLaying
            })
        }
    }

    // Salva il registro delle galline di questa razza.
    function saveHens(list) {
        var settings = appData.breedSettings()
        for (var i = 0; i < settings.length; i++) {
            if (settings[i].breedId === page.breedId)
                settings[i].hens = list
        }
        appData.saveBreedSettings(settings)
        page.reload()
    }

    function toggleHen(index) {
        var list = page.hens.slice()
        list[index].isLaying = !list[index].isLaying
        page.saveHens(list)
    }

    function deleteHen(index) {
        var list = page.hens.slice()
        var hen = list[index]
        remorse.execute(henList, page.tr("delete"), function () {
            list.splice(index, 1)
            page.saveHens(list)
        }, 4000)
    }

    function openHen(index) {
        var hen = (index >= 0 && index < page.hens.length) ? page.hens[index] : null
        pageStack.push(Qt.resolvedUrl("HenPage.qml"),
                       { "breedId": page.breedId, "hen": hen })
    }

    Component.onCompleted: page.reload()

    onStatusChanged: {
        if (status !== PageStatus.Active)
            return
        if (page.ready)
            page.reload()
        page.ready = true
    }

    RemorseItem { id: remorse }

    SilicaListView {
        id: henList
        anchors.fill: parent

        header: Column {
            width: henList.width

            PageHeader { title: page.tr("breed_sheet", page.breedName) }

            Image {
                x: Theme.horizontalPageMargin
                width: henList.width - 2 * Theme.horizontalPageMargin
                height: width / 2
                source: Catalog.breedFromId(page.breedId)
                        ? "file://" + Catalog.breedFromId(page.breedId).asset : ""
                fillMode: Image.PreserveAspectCrop
                asynchronous: true
            }

            Item { width: parent.width; height: Theme.paddingMedium }

            Column {
                x: Theme.horizontalPageMargin
                width: henList.width - 2 * Theme.horizontalPageMargin
                spacing: Theme.paddingSmall

                Label {
                    width: parent.width
                    text: page.breedDescription
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeSmall
                    wrapMode: Text.Wrap
                }

                Label {
                    width: parent.width
                    text: page.eggColor
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeExtraSmall
                    truncationMode: TruncationMode.Fade
                }

                Label {
                    width: parent.width
                    text: page.tr("reg_hens") + ": " + page.registered
                          + " · " + page.tr("laying_6_months") + ": " + page.laying
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeExtraSmall
                    truncationMode: TruncationMode.Fade
                }

                Label {
                    width: parent.width
                    text: page.tr("est_prod") + ": " + page.daily.toFixed(1) + " " + page.tr("eggs_per_day")
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeExtraSmall
                    truncationMode: TruncationMode.Fade
                }
            }

            Item { width: parent.width; height: Theme.paddingMedium }

            SectionHeader { text: page.tr("hen_registry") }
        }

        model: henModel

        delegate: ListItem {
            id: henItem
            contentHeight: henText.height + Theme.paddingMedium

            menu: ContextMenu {
                MenuItem {
                    text: page.tr("delete")
                    onClicked: page.deleteHen(index)
                }
            }

            Column {
                id: henText
                x: Theme.horizontalPageMargin
                y: Theme.paddingMedium
                width: parent.width - 2 * Theme.horizontalPageMargin - layingSwitch.width
                       - Theme.paddingMedium
                spacing: Theme.paddingSmall

                Label {
                    width: parent.width
                    text: model.name
                    color: henItem.highlighted ? Theme.highlightColor : Theme.primaryColor
                    truncationMode: TruncationMode.Fade
                }

                Label {
                    width: parent.width
                    text: model.birth
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeExtraSmall
                    truncationMode: TruncationMode.Fade
                }

                Label {
                    width: parent.width
                    text: model.age + " · " + model.status
                    color: Theme.secondaryColor
                    font.pixelSize: Theme.fontSizeExtraSmall
                    truncationMode: TruncationMode.Fade
                }
            }

            Switch {
                id: layingSwitch
                anchors {
                    right: parent.right
                    rightMargin: Theme.horizontalPageMargin
                    verticalCenter: parent.verticalCenter
                }
                checked: model.isLaying
                onClicked: page.toggleHen(index)
            }

            onClicked: page.openHen(index)
        }

        ViewPlaceholder {
            enabled: henModel.count === 0
            text: page.tr("no_hens_reg")
        }

        PullDownMenu {
            MenuItem {
                text: page.tr("new_hen")
                onClicked: page.openHen(-1)
            }
        }

        VerticalScrollDecorator {}
    }
}