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 {Tag, TagUtils} from "./Logic/TagsFilter";
import {FilteredLayer} from "./Logic/FilteredLayer";
import {LayerUpdater} from "./Logic/LayerUpdater";
import {UIElement} from "./UI/UIElement";
import {MessageBoxHandler} from "./UI/MessageBoxHandler";
import {Overpass} from "./Logic/Overpass";
import {FeatureInfoBox} from "./UI/FeatureInfoBox";
import {GeoLocationHandler} from "./Logic/GeoLocationHandler";
import {StrayClickHandler} from "./Logic/StrayClickHandler";
import {SimpleAddUI} from "./UI/SimpleAddUI";
import {VariableUiElement} from "./UI/Base/VariableUIElement";
import {SearchAndGo} from "./UI/SearchAndGo";
import {CollapseButton} from "./UI/Base/CollapseButton";
import {AllKnownLayouts} from "./Customizations/AllKnownLayouts";




// --------------------- Read the URL parameters -----------------

if(location.href.startsWith("http://buurtnatuur.be")){
    // Reload the https version. This is important for the 'locate me' button
    window.location.replace("https://buurtnatuur.be"); 
}


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 = null; // "http://127.0.0.1:8080/test.json";
}


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


let defaultQuest = "buurtnatuur"
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) {
        defaultQuest = paramDict.quests
    }
    if(paramDict.test){
        dryRun = true;
    }
}

const questSetToRender = AllKnownLayouts.allSets[defaultQuest];
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 preferedPictureLicense = new UIEventSource<string>(undefined);

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


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

const saveTimeout = 30000; // 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);
const bm = new Basemap("leafletDiv", locationControl, new VariableUiElement(
    locationControl.map((location) => {
        const mapComplete = "<a href='https://github.com/pietervdvn/MapComplete' target='_blank'>Mapcomple</a> " +
            " " +
            "<a href='https://github.com/pietervdvn/MapComplete/issues' target='_blank'><img src='./assets/bug.svg' alt='Report bug'  class='small-userbadge-icon'></a>";
        let editHere = "";
        if (location !== undefined) {
            editHere = " | " +
                "<a href='https://www.openstreetmap.org/edit?editor=id#map=" + location.zoom + "/" + location.lat + "/" + location.lon + "' target='_blank'>" +
                "<img src='./assets/pencil.svg' alt='edit here' class='small-userbadge-icon'>" +
                "</a>"
        }
        return mapComplete + editHere;

    })
));


// ------------- Tie together user settings and UI -----------


const picturesPrefName = "mapcomplete-pictures-license";
preferedPictureLicense.addCallback((license) => {
    osmConnection.SetPreference(picturesPrefName, license);
});

osmConnection.preferences.addCallback((prefs) => {
    if (prefs[picturesPrefName] !== undefined) {
        preferedPictureLicense.setData(prefs[picturesPrefName]);
    }
})


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

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

const flayers: FilteredLayer[] = []

let minZoom = 0;

for (const layer of questSetToRender.layers) {

    const generateInfo = (tagsES) => {

        return new FeatureInfoBox(
            tagsES,
            layer.title,
            layer.elementsToShow,
            changes,
            osmConnection.userDetails,
            preferedPictureLicense
        )
    };

    minZoom = Math.max(minZoom, layer.minzoom);
    
    const flayer = layer.asLayer(bm, allElements, changes, osmConnection.userDetails, selectedElement,
        generateInfo);

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

const layerUpdater = new LayerUpdater(bm, minZoom, flayers);


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


new StrayClickHandler(bm, selectedElement, leftMessage, () => {
        return new SimpleAddUI(bm.Location,
            bm.LastClickLocation,
            changes,
            selectedElement,
            layerUpdater.runningQuery,
            osmConnection.userDetails,
            addButtons);
    }
);

/**
 * 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.title,
                    layer.elementsToShow,
                    changes,
                    osmConnection.userDetails,
                    preferedPictureLicense
                ));
            break;
        }
    }
    }
);


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

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

new SearchAndGo(bm).AttachTo("searchbox");

new CollapseButton("messagesbox")
    .AttachTo("collapseButton");

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 + questSetToRender.welcomeTail+
                "</div>";
        }),
        function () {
            osmConnection.registerActivateOsmAUthenticationClass()
        });
}
leftMessage.setData(welcomeMessage);
welcomeMessage().AttachTo("messagesbox");


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

new CenterMessageBox(
    minZoom,
    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();