import Combine from "./Base/Combine"
import {FixedUiElement} from "./Base/FixedUiElement"
import BaseUIElement from "./BaseUIElement"
import Title from "./Base/Title"
import Table from "./Base/Table"
import {SpecialVisualization} from "./SpecialVisualization";
import {HistogramViz} from "./Popup/HistogramViz";
import {StealViz} from "./Popup/StealViz";
import {MinimapViz} from "./Popup/MinimapViz";
import {SidedMinimap} from "./Popup/SidedMinimap";
import {ShareLinkViz} from "./Popup/ShareLinkViz";
import {UploadToOsmViz} from "./Popup/UploadToOsmViz";
import {MultiApplyViz} from "./Popup/MultiApplyViz";
import {ExportAsGpxViz} from "./Popup/ExportAsGpxViz";
import {AddNoteCommentViz} from "./Popup/AddNoteCommentViz";
import {PlantNetDetectionViz} from "./Popup/PlantNetDetectionViz";
import {ConflateButton, ImportPointButton, ImportWayButton} from "./Popup/ImportButton";
import TagApplyButton from "./Popup/TagApplyButton";
import {CloseNoteButton} from "./Popup/CloseNoteButton";
import {NearbyImageVis} from "./Popup/NearbyImageVis";
import {MapillaryLinkVis} from "./Popup/MapillaryLinkVis";
import {Stores, UIEventSource} from "../Logic/UIEventSource";
import {AllTagsPanel} from "./AllTagsPanel";
import AllImageProviders from "../Logic/ImageProviders/AllImageProviders";
import {ImageCarousel} from "./Image/ImageCarousel";
import {ImageUploadFlow} from "./Image/ImageUploadFlow";
import {VariableUiElement} from "./Base/VariableUIElement";
import {Utils} from "../Utils";
import WikipediaBox from "./Wikipedia/WikipediaBox";
import Wikidata, {WikidataResponse} from "../Logic/Web/Wikidata";
import {Translation} from "./i18n/Translation";
import Translations from "./i18n/Translations";
import MangroveReviews from "../Logic/Web/MangroveReviews";
import ReviewForm from "./Reviews/ReviewForm";
import ReviewElement from "./Reviews/ReviewElement";
import OpeningHoursVisualization from "./OpeningHours/OpeningHoursVisualization";
import LiveQueryHandler from "../Logic/Web/LiveQueryHandler";
import {SubtleButton} from "./Base/SubtleButton";
import Svg from "../Svg";
import {OpenIdEditor, OpenJosm} from "./BigComponents/CopyrightPanel";
import Hash from "../Logic/Web/Hash";
import NoteCommentElement from "./Popup/NoteCommentElement";
import ImgurUploader from "../Logic/ImageProviders/ImgurUploader";
import FileSelectorButton from "./Input/FileSelectorButton";
import {LoginToggle} from "./Popup/LoginButton";
import Toggle from "./Input/Toggle";
import {SubstitutedTranslation} from "./SubstitutedTranslation";
import List from "./Base/List";
import {OsmFeature} from "../Models/OsmFeature";
import LayerConfig from "../Models/ThemeConfig/LayerConfig";
import {GeoOperations} from "../Logic/GeoOperations";
import StatisticsPanel from "./BigComponents/StatisticsPanel";
import AutoApplyButton from "./Popup/AutoApplyButton";
import {LanguageElement} from "./Popup/LanguageElement";

export default class SpecialVisualizations {
    public static specialVisualizations: SpecialVisualization[]  = SpecialVisualizations.initList();

    private static initList() : SpecialVisualization[] {
        const specialVisualizations: SpecialVisualization[] = [
            new HistogramViz(),
            new StealViz(),
            new MinimapViz(),
            new SidedMinimap(),
            new ShareLinkViz() ,
            new UploadToOsmViz(),
            new MultiApplyViz(),
            new ExportAsGpxViz(),
            new AddNoteCommentViz(),
            new PlantNetDetectionViz(),
            new ImportPointButton(),
            new ImportWayButton(),
            new ConflateButton(),
            new TagApplyButton(),
            new CloseNoteButton(),
            new NearbyImageVis(),
            new MapillaryLinkVis(),
            new LanguageElement(),
            {
                funcName: "all_tags",
                docs: "Prints all key-value pairs of the object - used for debugging",
                args: [],
                constr: (state, tags: UIEventSource<any>) => new AllTagsPanel(tags, state),
            },
            {
                funcName: "image_carousel",
                docs: "Creates an image carousel for the given sources. An attempt will be made to guess what source is used. Supported: Wikidata identifiers, Wikipedia pages, Wikimedia categories, IMGUR (with attribution, direct links)",
                args: [
                    {
                        name: "image_key",
                        defaultValue: AllImageProviders.defaultKeys.join(","),
                        doc: "The keys given to the images, e.g. if <span class='literal-code'>image</span> is given, the first picture URL will be added as <span class='literal-code'>image</span>, the second as <span class='literal-code'>image:0</span>, the third as <span class='literal-code'>image:1</span>, etc... Multiple values are allowed if ';'-separated ",
                    },
                ],
                constr: (state, tags, args) => {
                    let imagePrefixes: string[] = undefined
                    if (args.length > 0) {
                        imagePrefixes = [].concat(...args.map((a) => a.split(",")))
                    }
                    return new ImageCarousel(
                        AllImageProviders.LoadImagesFor(tags, imagePrefixes),
                        tags,
                        state
                    )
                },
            },
            {
                funcName: "image_upload",
                docs: "Creates a button where a user can upload an image to IMGUR",
                args: [
                    {
                        name: "image-key",
                        doc: "Image tag to add the URL to (or image-tag:0, image-tag:1 when multiple images are added)",
                        defaultValue: "image",
                    },
                    {
                        name: "label",
                        doc: "The text to show on the button",
                        defaultValue: "Add image",
                    },
                ],
                constr: (state, tags, args) => {
                    return new ImageUploadFlow(tags, state, args[0], args[1])
                },
            },
            {
                funcName: "wikipedia",
                docs: "A box showing the corresponding wikipedia article - based on the wikidata tag",
                args: [
                    {
                        name: "keyToShowWikipediaFor",
                        doc: "Use the wikidata entry from this key to show the wikipedia article for. Multiple keys can be given (separated by ';'), in which case the first matching value is used",
                        defaultValue: "wikidata;wikipedia",
                    },
                ],
                example:
                    "`{wikipedia()}` is a basic example, `{wikipedia(name:etymology:wikidata)}` to show the wikipedia page of whom the feature was named after. Also remember that these can be styled, e.g. `{wikipedia():max-height: 10rem}` to limit the height",
                constr: (_, tagsSource, args) => {
                    const keys = args[0].split(";").map((k) => k.trim())
                    return new VariableUiElement(
                        tagsSource
                            .map((tags) => {
                                const key = keys.find(
                                    (k) => tags[k] !== undefined && tags[k] !== ""
                                )
                                return tags[key]
                            })
                            .map((wikidata) => {
                                const wikidatas: string[] = Utils.NoEmpty(
                                    wikidata?.split(";")?.map((wd) => wd.trim()) ?? []
                                )
                                return new WikipediaBox(wikidatas)
                            })
                    )
                },
            },
            {
                funcName: "wikidata_label",
                docs: "Shows the label of the corresponding wikidata-item",
                args: [
                    {
                        name: "keyToShowWikidataFor",
                        doc: "Use the wikidata entry from this key to show the label",
                        defaultValue: "wikidata",
                    },
                ],
                example:
                    "`{wikidata_label()}` is a basic example, `{wikipedia(name:etymology:wikidata)}` to show the label itself",
                constr: (_, tagsSource, args) =>
                    new VariableUiElement(
                        tagsSource
                            .map((tags) => tags[args[0]])
                            .map((wikidata) => {
                                wikidata = Utils.NoEmpty(
                                    wikidata?.split(";")?.map((wd) => wd.trim()) ?? []
                                )[0]
                                const entry = Wikidata.LoadWikidataEntry(wikidata)
                                return new VariableUiElement(
                                    entry.map((e) => {
                                        if (e === undefined || e["success"] === undefined) {
                                            return wikidata
                                        }
                                        const response = <WikidataResponse>e["success"]
                                        return Translation.fromMap(response.labels)
                                    })
                                )
                            })
                    ),
            },
            {
                funcName: "reviews",
                docs: "Adds an overview of the mangrove-reviews of this object. Mangrove.Reviews needs - in order to identify the reviewed object - a coordinate and a name. By default, the name of the object is given, but this can be overwritten",
                example:
                    "`{reviews()}` for a vanilla review, `{reviews(name, play_forest)}` to review a play forest. If a name is known, the name will be used as identifier, otherwise 'play_forest' is used",
                args: [
                    {
                        name: "subjectKey",
                        defaultValue: "name",
                        doc: "The key to use to determine the subject. If specified, the subject will be <b>tags[subjectKey]</b>",
                    },
                    {
                        name: "fallback",
                        doc: "The identifier to use, if <i>tags[subjectKey]</i> as specified above is not available. This is effectively a fallback value",
                    },
                ],
                constr: (state, tags, args) => {
                    const tgs = tags.data
                    const key = args[0] ?? "name"
                    let subject = tgs[key] ?? args[1]
                    if (subject === undefined || subject === "") {
                        return Translations.t.reviews.name_required
                    }
                    const mangrove = MangroveReviews.Get(
                        Number(tgs._lon),
                        Number(tgs._lat),
                        encodeURIComponent(subject),
                        state.mangroveIdentity,
                        state.featureSwitchIsTesting.data
                    )
                    const form = new ReviewForm(
                        (r, whenDone) => mangrove.AddReview(r, whenDone),
                        state.osmConnection
                    )
                    return new ReviewElement(mangrove.GetSubjectUri(), mangrove.GetReviews(), form)
                },
            },
            {
                funcName: "opening_hours_table",
                docs: "Creates an opening-hours table. Usage: {opening_hours_table(opening_hours)} to create a table of the tag 'opening_hours'.",
                args: [
                    {
                        name: "key",
                        defaultValue: "opening_hours",
                        doc: "The tagkey from which the table is constructed.",
                    },
                    {
                        name: "prefix",
                        defaultValue: "",
                        doc: "Remove this string from the start of the value before parsing. __Note: use `&LPARENs` to indicate `(` if needed__",
                    },
                    {
                        name: "postfix",
                        defaultValue: "",
                        doc: "Remove this string from the end of the value before parsing. __Note: use `&RPARENs` to indicate `)` if needed__",
                    },
                ],
                example:
                    "A normal opening hours table can be invoked with `{opening_hours_table()}`. A table for e.g. conditional access with opening hours can be `{opening_hours_table(access:conditional, no @ &LPARENS, &RPARENS)}`",
                constr: (state, tagSource: UIEventSource<any>, args) => {
                    return new OpeningHoursVisualization(
                        tagSource,
                        state,
                        args[0],
                        args[1],
                        args[2]
                    )
                },
            },
            {
                funcName: "live",
                docs: "Downloads a JSON from the given URL, e.g. '{live(example.org/data.json, shorthand:x.y.z, other:a.b.c, shorthand)}' will download the given file, will create an object {shorthand: json[x][y][z], other: json[a][b][c] out of it and will return 'other' or 'json[a][b][c]. This is made to use in combination with tags, e.g. {live({url}, {url:format}, needed_value)}",
                example:
                    "{live({url},{url:format},hour)} {live(https://data.mobility.brussels/bike/api/counts/?request=live&featureID=CB2105,hour:data.hour_cnt;day:data.day_cnt;year:data.year_cnt,hour)}",
                args: [
                    {
                        name: "Url",
                        doc: "The URL to load",
                        required: true,
                    },
                    {
                        name: "Shorthands",
                        doc: "A list of shorthands, of the format 'shorthandname:path.path.path'. separated by ;",
                    },
                    {
                        name: "path",
                        doc: "The path (or shorthand) that should be returned",
                    },
                ],
                constr: (state, tagSource: UIEventSource<any>, args) => {
                    const url = args[0]
                    const shorthands = args[1]
                    const neededValue = args[2]
                    const source = LiveQueryHandler.FetchLiveData(url, shorthands.split(";"))
                    return new VariableUiElement(
                        source.map((data) => data[neededValue] ?? "Loading...")
                    )
                },
            },
            {
                funcName: "canonical",
                docs: "Converts a short, canonical value into the long, translated text including the unit. This only works if a `unit` is defined for the corresponding value. The unit specification will be included in the text. ",
                example:
                    "If the object has `length=42`, then `{canonical(length)}` will be shown as **42 meter** (in english), **42 metre** (in french), ...",
                args: [
                    {
                        name: "key",
                        doc: "The key of the tag to give the canonical text for",
                        required: true,
                    },
                ],
                constr: (state, tagSource, args) => {
                    const key = args[0]
                    return new VariableUiElement(
                        tagSource
                            .map((tags) => tags[key])
                            .map((value) => {
                                if (value === undefined) {
                                    return undefined
                                }
                                const allUnits = [].concat(
                                    ...(state?.layoutToUse?.layers?.map((lyr) => lyr.units) ?? [])
                                )
                                const unit = allUnits.filter((unit) =>
                                    unit.isApplicableToKey(key)
                                )[0]
                                if (unit === undefined) {
                                    return value
                                }
                                return unit.asHumanLongValue(value)
                            })
                    )
                },
            },
            {
                funcName: "export_as_geojson",
                docs: "Exports the selected feature as GeoJson-file",
                args: [],
                constr: (state, tagSource) => {
                    const t = Translations.t.general.download

                    return new SubtleButton(
                        Svg.download_ui(),
                        new Combine([
                            t.downloadFeatureAsGeojson.SetClass("font-bold text-lg"),
                            t.downloadGeoJsonHelper.SetClass("subtle"),
                        ]).SetClass("flex flex-col")
                    ).onClick(() => {
                        console.log("Exporting as Geojson")
                        const tags = tagSource.data
                        const feature = state.allElements.ContainingFeatures.get(tags.id)
                        const matchingLayer = state?.layoutToUse?.getMatchingLayer(tags)
                        const title =
                            matchingLayer.title?.GetRenderValue(tags)?.Subs(tags)?.txt ?? "geojson"
                        const data = JSON.stringify(feature, null, "  ")
                        Utils.offerContentsAsDownloadableFile(
                            data,
                            title + "_mapcomplete_export.geojson",
                            {
                                mimetype: "application/vnd.geo+json",
                            }
                        )
                    })
                },
            },
            {
                funcName: "open_in_iD",
                docs: "Opens the current view in the iD-editor",
                args: [],
                constr: (state, feature) => {
                    return new OpenIdEditor(state, undefined, feature.data.id)
                },
            },
            {
                funcName: "open_in_josm",
                docs: "Opens the current view in the JOSM-editor",
                args: [],
                constr: (state, feature) => {
                    return new OpenJosm(state)
                },
            },
            {
                funcName: "clear_location_history",
                docs: "A button to remove the travelled track information from the device",
                args: [],
                constr: (state) => {
                    return new SubtleButton(
                        Svg.delete_icon_svg().SetStyle("height: 1.5rem"),
                        Translations.t.general.removeLocationHistory
                    ).onClick(() => {
                        state.historicalUserLocations.features.setData([])
                        Hash.hash.setData(undefined)
                    })
                },
            },
            {
                funcName: "visualize_note_comments",
                docs: "Visualises the comments for notes",
                args: [
                    {
                        name: "commentsKey",
                        doc: "The property name of the comments, which should be stringified json",
                        defaultValue: "comments",
                    },
                    {
                        name: "start",
                        doc: "Drop the first 'start' comments",
                        defaultValue: "0",
                    },
                ],
                constr: (state, tags, args) =>
                    new VariableUiElement(
                        tags
                            .map((tags) => tags[args[0]])
                            .map((commentsStr) => {
                                const comments: any[] = JSON.parse(commentsStr)
                                const startLoc = Number(args[1] ?? 0)
                                if (!isNaN(startLoc) && startLoc > 0) {
                                    comments.splice(0, startLoc)
                                }
                                return new Combine(
                                    comments
                                        .filter((c) => c.text !== "")
                                        .map((c) => new NoteCommentElement(c))
                                ).SetClass("flex flex-col")
                            })
                    ),
            },
            {
                funcName: "add_image_to_note",
                docs: "Adds an image to a node",
                args: [
                    {
                        name: "Id-key",
                        doc: "The property name where the ID of the note to close can be found",
                        defaultValue: "id",
                    },
                ],
                constr: (state, tags, args) => {
                    const isUploading = new UIEventSource(false)
                    const t = Translations.t.notes
                    const id = tags.data[args[0] ?? "id"]

                    const uploader = new ImgurUploader(async (url) => {
                        isUploading.setData(false)
                        await state.osmConnection.addCommentToNote(id, url)
                        NoteCommentElement.addCommentTo(url, tags, state)
                    })

                    const label = new Combine([
                        Svg.camera_plus_ui().SetClass("block w-12 h-12 p-1 text-4xl "),
                        Translations.t.image.addPicture,
                    ]).SetClass(
                        "p-2 border-4 border-black rounded-full font-bold h-full align-center w-full flex justify-center"
                    )

                    const fileSelector = new FileSelectorButton(label)
                    fileSelector.GetValue().addCallback((filelist) => {
                        isUploading.setData(true)
                        uploader.uploadMany("Image for osm.org/note/" + id, "CC0", filelist)
                    })
                    const ti = Translations.t.image
                    const uploadPanel = new Combine([
                        fileSelector,
                        new Combine([ti.willBePublished, ti.cco]),
                        ti.ccoExplanation.SetClass("subtle text-sm"),
                        ti.respectPrivacy.SetClass("text-sm"),
                    ]).SetClass("flex flex-col")
                    return new LoginToggle(
                        new Toggle(
                            Translations.t.image.uploadingPicture.SetClass("alert"),
                            uploadPanel,
                            isUploading
                        ),
                        t.loginToAddPicture,
                        state
                    )
                },
            },
            {
                funcName: "title",
                args: [],
                docs: "Shows the title of the popup. Useful for some cases, e.g. 'What is phone number of {title()}?'",
                example:
                    "`What is the phone number of {title()}`, which might automatically become `What is the phone number of XYZ`.",
                constr: (state, tagsSource) =>
                    new VariableUiElement(
                        tagsSource.map((tags) => {
                            const layer = state.layoutToUse.getMatchingLayer(tags)
                            const title = layer?.title?.GetRenderValue(tags)
                            if (title === undefined) {
                                return undefined
                            }
                            return new SubstitutedTranslation(title, tagsSource, state)
                        })
                    ),
            },
            {
                funcName: "maproulette_task",
                args: [],
                constr(state, tagSource, argument, guistate) {
                    let parentId = tagSource.data.mr_challengeId
                    let challenge = Stores.FromPromise(
                        Utils.downloadJsonCached(
                            `https://maproulette.org/api/v2/challenge/${parentId}`,
                            24 * 60 * 60 * 1000
                        )
                    )

                    return new VariableUiElement(
                        challenge.map((challenge) => {
                            let listItems: BaseUIElement[] = []
                            let title: BaseUIElement

                            if (challenge?.name) {
                                title = new Title(challenge.name)
                            }

                            if (challenge?.description) {
                                listItems.push(new FixedUiElement(challenge.description))
                            }

                            if (challenge?.instruction) {
                                listItems.push(new FixedUiElement(challenge.instruction))
                            }

                            if (listItems.length === 0) {
                                return undefined
                            } else {
                                return [title, new List(listItems)]
                            }
                        })
                    )
                },
                docs: "Show details of a MapRoulette task",
            },
            {
                funcName: "statistics",
                docs: "Show general statistics about the elements currently in view. Intended to use on the `current_view`-layer",
                args: [],
                constr: (state, tagsSource, args, guiState) => {
                    const elementsInview = new UIEventSource<
                        {
                            distance: number
                            center: [number, number]
                            element: OsmFeature
                            layer: LayerConfig
                        }[]
                        >([])

                    function update() {
                        const mapCenter = <[number, number]>[
                            state.locationControl.data.lon,
                            state.locationControl.data.lon,
                        ]
                        const bbox = state.currentBounds.data
                        const elements = state.featurePipeline
                            .getAllVisibleElementsWithmeta(bbox)
                            .map((el) => {
                                const distance = GeoOperations.distanceBetween(el.center, mapCenter)
                                return { ...el, distance }
                            })
                        elements.sort((e0, e1) => e0.distance - e1.distance)
                        elementsInview.setData(elements)
                    }

                    state.currentBounds.addCallbackAndRun(update)
                    state.featurePipeline.newDataLoadedSignal.addCallback(update)
                    state.filteredLayers.addCallbackAndRun((fls) => {
                        for (const fl of fls) {
                            fl.isDisplayed.addCallback(update)
                            fl.appliedFilters.addCallback(update)
                        }
                    })
                    return new StatisticsPanel(elementsInview, state)
                },
            },
            {
                funcName: "send_email",
                docs: "Creates a `mailto`-link where some fields are already set and correctly escaped. The user will be promted to send the email",
                args: [
                    {
                        name: "to",
                        doc: "Who to send the email to?",
                        required: true,
                    },
                    {
                        name: "subject",
                        doc: "The subject of the email",
                        required: true,
                    },
                    {
                        name: "body",
                        doc: "The text in the email",
                        required: true,
                    },

                    {
                        name: "button_text",
                        doc: "The text shown on the button in the UI",
                        required: true,
                    },
                ],
                constr(state, tags, args) {
                    return new VariableUiElement(
                        tags.map((tags) => {
                            const [to, subject, body, button_text] = args.map((str) =>
                                Utils.SubstituteKeys(str, tags)
                            )
                            const url =
                                "mailto:" +
                                to +
                                "?subject=" +
                                encodeURIComponent(subject) +
                                "&body=" +
                                encodeURIComponent(body)
                            return new SubtleButton(Svg.envelope_svg(), button_text, {
                                url,
                            })
                        })
                    )
                },
            },
            {
                funcName: "multi",
                docs: "Given an embedded tagRendering (read only) and a key, will read the keyname as a JSON-list. Every element of this list will be considered as tags and rendered with the tagRendering",
                example:
                    "```json\n" +
                    JSON.stringify(
                        {
                            render: {
                                special: {
                                    type: "multi",
                                    key: "_doors_from_building_properties",
                                    tagRendering: {
                                        render: "The building containing this feature has a <a href='#{id}'>door</a> of width {entrance:width}",
                                    },
                                },
                            },
                        },
                        null,
                        "  "
                    ) +
                    "\n```",
                args: [
                    {
                        name: "key",
                        doc: "The property to read and to interpret as a list of properties",
                        required: true,
                    },
                    {
                        name: "tagrendering",
                        doc: "An entire tagRenderingConfig",
                        required: true,
                    },
                ],
                constr(state, featureTags, args) {
                    const [key, tr] = args
                    const translation = new Translation({ "*": tr })
                    return new VariableUiElement(
                        featureTags.map((tags) => {
                            const properties: object[] = JSON.parse(tags[key])
                            const elements = []
                            for (const property of properties) {
                                const subsTr = new SubstitutedTranslation(
                                    translation,
                                    new UIEventSource<any>(property),
                                    state
                                )
                                elements.push(subsTr)
                            }
                            return new List(elements)
                        })
                    )
                },
            },


        ]

        specialVisualizations.push(new AutoApplyButton(specialVisualizations))

        const invalid = specialVisualizations.map((sp,i) => ({sp, i})).filter(sp => sp.sp.funcName === undefined)
        if(invalid.length > 0){
            throw "Invalid special visualisation found: funcName is undefined for "+invalid.map(sp => sp.i).join(", ")+". Did you perhaps type \n  funcName: \"funcname\" // type declaration uses COLON\ninstead of:\n  funcName = \"funcName\" // value definition uses EQUAL"
        }

        return specialVisualizations
    }

    public static DocumentationFor(viz: string | SpecialVisualization): BaseUIElement | undefined {
        if (typeof viz === "string") {
            viz = SpecialVisualizations.specialVisualizations.find((sv) => sv.funcName === viz)
        }
        if (viz === undefined) {
            return undefined
        }
        return new Combine([
            new Title(viz.funcName, 3),
            viz.docs,
            viz.args.length > 0
                ? new Table(
                      ["name", "default", "description"],
                      viz.args.map((arg) => {
                          let defaultArg = arg.defaultValue ?? "_undefined_"
                          if (defaultArg == "") {
                              defaultArg = "_empty string_"
                          }
                          return [arg.name, defaultArg, arg.doc]
                      })
                  )
                : undefined,
            new Title("Example usage of " + viz.funcName, 4),
            new FixedUiElement(
                viz.example ??
                    "`{" +
                        viz.funcName +
                        "(" +
                        viz.args.map((arg) => arg.defaultValue).join(",") +
                        ")}`"
            ).SetClass("literal-code"),
        ])
    }

    public static HelpMessage() {
        const helpTexts = SpecialVisualizations.specialVisualizations.map((viz) =>
            SpecialVisualizations.DocumentationFor(viz)
        )

        return new Combine([
            new Combine([
                new Title("Special tag renderings", 1),

                "In a tagrendering, some special values are substituted by an advanced UI-element. This allows advanced features and visualizations to be reused by custom themes or even to query third-party API's.",
                "General usage is `{func_name()}`, `{func_name(arg, someotherarg)}` or `{func_name(args):cssStyle}`. Note that you _do not_ need to use quotes around your arguments, the comma is enough to separate them. This also implies you cannot use a comma in your args",
                new Title("Using expanded syntax", 4),
                `Instead of using \`{"render": {"en": "{some_special_visualisation(some_arg, some other really long message, more args)} , "nl": "{some_special_visualisation(some_arg, een boodschap in een andere taal, more args)}}\`, one can also write`,
                new FixedUiElement(
                    JSON.stringify(
                        {
                            render: {
                                special: {
                                    type: "some_special_visualisation",
                                    before: {
                                        en: "Some text to prefix before the special element (e.g. a title)",
                                        nl: "Een tekst om voor het element te zetten (bv. een titel)",
                                    },
                                    after: {
                                        en: "Some text to put after the element, e.g. a footer",
                                    },
                                    argname: "some_arg",
                                    message: {
                                        en: "some other really long message",
                                        nl: "een boodschap in een andere taal",
                                    },
                                    other_arg_name: "more args",
                                },
                            },
                        },
                        null,
                        "  "
                    )
                ).SetClass("code"),
            ]).SetClass("flex flex-col"),
            ...helpTexts,
        ]).SetClass("flex flex-col")
    }
}