import {OsmConnection} from "./Logic/OsmConnection";
import {Changes} from "./Logic/Changes";
import {ElementStorage} from "./Logic/ElementStorage";
import {UIEventSource} from "./UI/UIEventSource";
import {UserBadge} from "./UI/UserBadge";
import {Basemap} from "./Logic/Basemap";
import {PendingChanges} from "./UI/PendingChanges";
import {CenterMessageBox} from "./UI/CenterMessageBox";
import {Helpers} from "./Helpers";
import {KnownSet} from "./Layers/KnownSet";
import {Tag, TagsFilter, TagUtils} from "./Logic/TagsFilter";
import {FilteredLayer} from "./Logic/FilteredLayer";
import {LayerUpdater} from "./Logic/LayerUpdater";
import {VariableUiElement} from "./UI/VariableUIElement";
import {UIElement} from "./UI/UIElement";
import {MessageBoxHandler} from "./UI/MessageBoxHandler";
import {Overpass} from "./Logic/Overpass";
import {FixedUiElement} from "./UI/FixedUiElement";
import {FeatureInfoBox} from "./UI/FeatureInfoBox";
import {GeoLocationHandler} from "./Logic/GeoLocationHandler";

let dryRun = false;

if (location.hostname === "localhost" || location.hostname === "127.0.0.1") {

    // Set to true if testing and changes should NOT be saved
    dryRun = true;
    // If you have a testfile somewhere, enable this to spoof overpass
    // This should be hosted independantly, e.g. with `cd assets; webfsd -p 8080` + a CORS plugin to disable cors rules
   // Overpass.testUrl = "http://127.0.0.1:8080/test.json";
}


// ----------------- SELECT THE RIGHT QUESTSET -----------------


let questSetToRender = KnownSet.groen;
if (window.location.search) {
    const params = window.location.search.substr(1).split("&");
    const paramDict: any = {};
    for (const param of params) {
        var kv = param.split("=");
        paramDict[kv[0]] = kv[1];
    }

    if (paramDict.quests) {
        questSetToRender = KnownSet.allSets[paramDict.quests];
        console.log("Using quests: ", questSetToRender.name);
    }

}
document.title = questSetToRender.title;


// ----------------- Setup a few event sources -------------


// The message that should be shown at the center of the screen
const centerMessage = new UIEventSource<string>("");

// The countdown: if set to e.g. ten, it'll start counting down. When reaching zero, changes will be saved. NB: this is implemented later, not in the eventSource
const secondsTillChangesAreSaved = new UIEventSource<number>(0);

const leftMessage = new UIEventSource<() => UIElement>(undefined);

const selectedElement = new UIEventSource<any>(undefined);


const locationControl = new UIEventSource({
    zoom: questSetToRender.startzoom,
    lat: questSetToRender.startLat,
    lon: questSetToRender.startLon
});


// ----------------- Prepare the important objects -----------------

const saveTimeout = 5000; // After this many milliseconds without changes, saves are sent of to OSM
const allElements = new ElementStorage();
const osmConnection = new OsmConnection(dryRun);
const changes = new Changes(
    "Beantwoorden van vragen met MapComplete voor vragenset #" + questSetToRender.name,
    osmConnection, allElements, centerMessage);
const bm = new Basemap("leafletDiv", locationControl);


// ------------- Setup the layers -------------------------------

const addButtons: {
    name: string,
    icon: string,
    tags: Tag[],
    layerToAddTo: FilteredLayer
}[]
    = [];

const flayers: FilteredLayer[] = []

for (const layer of questSetToRender.layers) {

    const flayer = layer.asLayer(bm, allElements, changes, osmConnection.userDetails, selectedElement);

    const addButton = {
        name: layer.name,
        icon: layer.icon,
        tags: layer.newElementTags,
        layerToAddTo: flayer
    }
    addButtons.push(addButton);
    flayers.push(flayer);
}

const layerUpdater = new LayerUpdater(bm, questSetToRender.startzoom, flayers);


// ------------------ Setup various UI elements ------------

/*
const addButton = new AddButton(bm, changes, addButtons);
addButton.AttachTo("bottomRight");
addButton.Update();
 */

/**
 * Show the questions and information for the selected element on the leftMessage
 */
selectedElement.addCallback((data) => {
        // Which is the applicable set?
        for (const layer of questSetToRender.layers) {

            const applicable = layer.overpassFilter.matches(TagUtils.proprtiesToKV(data));
            if (applicable) {
                // This layer is the layer that gives the questions
                leftMessage.setData(() =>
                    new FeatureInfoBox(
                        allElements.getElement(data.id),
                        layer.elementsToShow,
                        layer.questions,
                        changes,
                        osmConnection.userDetails
                    ));
                break;
            }
        }


    }
);

const pendingChanges = new PendingChanges(
    changes.pendingChangesES, secondsTillChangesAreSaved, changes.isSaving);

new UserBadge(osmConnection.userDetails, pendingChanges)
    .AttachTo('userbadge');

var welcomeMessage = () => {
    return new VariableUiElement(
        osmConnection.userDetails.map((userdetails) => {
            var login = questSetToRender.gettingStartedPlzLogin;
            if (userdetails.loggedIn) {
                login = questSetToRender.welcomeBackMessage;
            }
            return "<div id='welcomeMessage'>" +
                questSetToRender.welcomeMessage + login +
                "</div>";
        }),
        function (html) {
            osmConnection.registerActivateOsmAUthenticationClass()
        });
}
leftMessage.setData(welcomeMessage);


var messageBox = new MessageBoxHandler(leftMessage, () => {selectedElement.setData(undefined)});

new CenterMessageBox(
    questSetToRender.startzoom,
    centerMessage,
    osmConnection,
    locationControl,
    layerUpdater.runningQuery)
    .AttachTo("centermessage");


Helpers.SetupAutoSave(changes, secondsTillChangesAreSaved, saveTimeout);
Helpers.LastEffortSave(changes);


osmConnection.registerActivateOsmAUthenticationClass();


new GeoLocationHandler(bm).AttachTo("geolocate-button");


// --------------- Send a ping to start various action --------

locationControl.ping();
messageBox.update();