MapComplete/UI/BigComponents/CopyrightPanel.ts

import Combine from "../Base/Combine"
import Translations from "../i18n/Translations"
import { Store } from "../../Logic/UIEventSource"
import { FixedUiElement } from "../Base/FixedUiElement"
import licenses from "../../assets/generated/license_info.json"
import SmallLicense from "../../Models/smallLicense"
import { Utils } from "../../Utils"
import Link from "../Base/Link"
import { VariableUiElement } from "../Base/VariableUIElement"
import contributors from "../../assets/contributors.json"
import translators from "../../assets/translators.json"
import BaseUIElement from "../BaseUIElement"
import LayoutConfig from "../../Models/ThemeConfig/LayoutConfig"
import Title from "../Base/Title"
import { BBox } from "../../Logic/BBox"
import { OsmConnection } from "../../Logic/Osm/OsmConnection"
import Constants from "../../Models/Constants"
import ContributorCount from "../../Logic/ContributorCount"
import Img from "../Base/Img"
import { TypedTranslation } from "../i18n/Translation"
import GeoIndexedStore from "../../Logic/FeatureSource/Actors/GeoIndexedStore"
import { RasterLayerPolygon } from "../../Models/RasterLayers"

/**
 * The attribution panel in the theme menu.
 */
export default class CopyrightPanel extends Combine {
    private static LicenseObject = CopyrightPanel.GenerateLicenses()

    constructor(state: {
        layout: LayoutConfig
        mapProperties: {
            readonly bounds: Store<BBox>
            readonly rasterLayer: Store<RasterLayerPolygon>
        }
        osmConnection: OsmConnection
        dataIsLoading: Store<boolean>
        perLayer: ReadonlyMap<string, GeoIndexedStore>
    }) {
        const t = Translations.t.general.attribution
        const layoutToUse = state.layout

        const iconAttributions: BaseUIElement[] = Utils.Dedup(layoutToUse.usedImages).map(
            CopyrightPanel.IconAttribution
        )

        let maintainer: BaseUIElement = undefined
        if (layoutToUse.credits !== undefined && layoutToUse.credits !== "") {
            maintainer = t.themeBy.Subs({ author: layoutToUse.credits })
        }

        const contributions = new ContributorCount(state).Contributors

        const dataContributors = new VariableUiElement(
            contributions.map((contributions) => {
                if (contributions === undefined) {
                    return ""
                }
                const sorted = Array.from(contributions, ([name, value]) => ({
                    name,
                    value,
                })).filter((x) => x.name !== undefined && x.name !== "undefined")
                if (sorted.length === 0) {
                    return ""
                }
                sorted.sort((a, b) => b.value - a.value)
                let hiddenCount = 0
                if (sorted.length > 10) {
                    hiddenCount = sorted.length - 10
                    sorted.splice(10, sorted.length - 10)
                }
                const links = sorted.map(
                    (kv) =>
                        `<a href="https://openstreetmap.org/user/${kv.name}" target="_blank">${kv.name}</a>`
                )
                const contribs = links.join(", ")

                if (hiddenCount <= 0) {
                    return t.mapContributionsBy.Subs({
                        contributors: contribs,
                    })
                } else {
                    return t.mapContributionsByAndHidden.Subs({
                        contributors: contribs,
                        hiddenCount: hiddenCount,
                    })
                }
            })
        )

        super(
            [
                new Title(t.attributionTitle),
                t.attributionContent,

                new VariableUiElement(
                    state.mapProperties.rasterLayer.mapD((layer) => {
                        const props = layer.properties
                        const attrUrl = props.attribution?.url
                        const attrText = props.attribution?.text

                        let bgAttr: BaseUIElement | string = undefined
                        if (attrText && attrUrl) {
                            bgAttr =
                                "<a href='" + attrUrl + "' target='_blank'>" + attrText + "</a>"
                        } else if (attrUrl) {
                            bgAttr = attrUrl
                        } else {
                            bgAttr = attrText
                        }
                        if (bgAttr) {
                            return Translations.t.general.attribution.attributionBackgroundLayerWithCopyright.Subs(
                                {
                                    name: props.name,
                                    copyright: bgAttr,
                                }
                            )
                        }
                        return Translations.t.general.attribution.attributionBackgroundLayer.Subs(
                            props
                        )
                    })
                ),

                maintainer,
                dataContributors,
                CopyrightPanel.CodeContributors(contributors, t.codeContributionsBy),
                CopyrightPanel.CodeContributors(translators, t.translatedBy),
                new FixedUiElement("MapComplete " + Constants.vNumber).SetClass("font-bold"),
                new Title(t.iconAttribution.title, 3),
                ...iconAttributions,
            ].map((e) => e?.SetClass("mt-4"))
        )
        this.SetClass("flex flex-col link-underline overflow-hidden")
        this.SetStyle("max-width:100%; width: 40rem; margin-left: 0.75rem; margin-right: 0.5rem")
    }

    private static CodeContributors(
        contributors,
        translation: TypedTranslation<{ contributors; hiddenCount }>
    ): BaseUIElement {
        const total = contributors.contributors.length
        let filtered = [...contributors.contributors]

        filtered.splice(10, total - 10)

        let contribsStr = filtered.map((c) => c.contributor).join(", ")

        if (contribsStr === "") {
            // Hmm, something went wrong loading the contributors list. Lets show nothing
            return undefined
        }

        return translation.Subs({
            contributors: contribsStr,
            hiddenCount: total - 10,
        })
    }

    private static IconAttribution(iconPath: string): BaseUIElement {
        if (iconPath.startsWith("http")) {
            try {
                iconPath = "." + new URL(iconPath).pathname
            } catch (e) {
                console.warn(e)
            }
        }

        const license: SmallLicense = CopyrightPanel.LicenseObject[iconPath]
        if (license == undefined) {
            return undefined
        }
        if (license.license.indexOf("trivial") >= 0) {
            return undefined
        }

        const sources = Utils.NoNull(Utils.NoEmpty(license.sources))

        return new Combine([
            new Img(iconPath).SetClass("w-12 min-h-12 mr-2 mb-2"),
            new Combine([
                new FixedUiElement(license.authors.join("; ")).SetClass("font-bold"),
                license.license,
                new Combine([
                    ...sources.map((lnk) => {
                        let sourceLinkContent = lnk
                        try {
                            sourceLinkContent = new URL(lnk).hostname
                        } catch {
                            console.error("Not a valid URL:", lnk)
                        }
                        return new Link(sourceLinkContent, lnk, true).SetClass("mr-2 mb-2")
                    }),
                ]).SetClass("flex flex-wrap"),
            ])
                .SetClass("flex flex-col")
                .SetStyle("width: calc(100% - 50px - 0.5em); min-width: 12rem;"),
        ]).SetClass("flex flex-wrap border-b border-gray-300 m-2 border-box")
    }

    private static GenerateLicenses() {
        const allLicenses = {}
        for (const key in licenses) {
            const license: SmallLicense = licenses[key]
            allLicenses[license.path] = license
        }
        return allLicenses
    }
}