import Combine from "../Base/Combine"
import ScrollableFullScreen from "../Base/ScrollableFullScreen"
import Translations from "../i18n/Translations"
import { UIEventSource } from "../../Logic/UIEventSource"
import BaseUIElement from "../BaseUIElement"
import Toggle from "../Input/Toggle"
import { DownloadPanel } from "./DownloadPanel"
import { SubtleButton } from "../Base/SubtleButton"
import Svg from "../../Svg"
import ExportPDF from "../ExportPDF"
import FilteredLayer from "../../Models/FilteredLayer"
import FeaturePipeline from "../../Logic/FeatureSource/FeaturePipeline"
import LayoutConfig from "../../Models/ThemeConfig/LayoutConfig"
import { BBox } from "../../Logic/BBox"
import BaseLayer from "../../Models/BaseLayer"
import Loc from "../../Models/Loc"

interface DownloadState {
    filteredLayers: UIEventSource<FilteredLayer[]>
    featurePipeline: FeaturePipeline
    layoutToUse: LayoutConfig
    currentBounds: UIEventSource<BBox>
    backgroundLayer: UIEventSource<BaseLayer>
    locationControl: UIEventSource<Loc>
    featureSwitchExportAsPdf: UIEventSource<boolean>
    featureSwitchEnableExport: UIEventSource<boolean>
}

export default class AllDownloads extends ScrollableFullScreen {
    constructor(
        isShown: UIEventSource<boolean>,
        state: {
            filteredLayers: UIEventSource<FilteredLayer[]>
            featurePipeline: FeaturePipeline
            layoutToUse: LayoutConfig
            currentBounds: UIEventSource<BBox>
            backgroundLayer: UIEventSource<BaseLayer>
            locationControl: UIEventSource<Loc>
            featureSwitchExportAsPdf: UIEventSource<boolean>
            featureSwitchEnableExport: UIEventSource<boolean>
        }
    ) {
        super(AllDownloads.GenTitle, () => AllDownloads.GeneratePanel(state), "downloads", isShown)
    }

    private static GenTitle(): BaseUIElement {
        return Translations.t.general.download.title
            .Clone()
            .SetClass("text-2xl break-words font-bold p-2")
    }

    private static GeneratePanel(state: DownloadState): BaseUIElement {
        const isExporting = new UIEventSource(false, "Pdf-is-exporting")
        const generatePdf = () => {
            isExporting.setData(true)
            new ExportPDF({
                freeDivId: "belowmap",
                background: state.backgroundLayer,
                location: state.locationControl,
                features: state.featurePipeline,
                layout: state.layoutToUse,
            }).isRunning.addCallbackAndRun((isRunning) => isExporting.setData(isRunning))
        }

        const loading = Svg.loading_svg().SetClass("animate-rotate")

        const dloadTrans = Translations.t.general.download
        const icon = new Toggle(loading, Svg.floppy_ui(), isExporting)
        const text = new Toggle(
            dloadTrans.exporting.Clone(),
            new Combine([
                dloadTrans.downloadAsPdf.Clone().SetClass("font-bold"),
                dloadTrans.downloadAsPdfHelper.Clone(),
            ])
                .SetClass("flex flex-col")
                .onClick(() => {
                    generatePdf()
                }),
            isExporting
        )

        const pdf = new Toggle(
            new SubtleButton(icon, text),
            undefined,

            state.featureSwitchExportAsPdf
        )

        const exportPanel = new Toggle(
            new DownloadPanel(state),
            undefined,
            state.featureSwitchEnableExport
        )

        return new Combine([pdf, exportPanel]).SetClass("flex flex-col")
    }
}