/*
TODO:
 - Check failed install file (0kb size ?)
*/
//const DEBUG_TONY_SAMA_FORK_MODE = false

import { getRequestHeaders, callPopup } from "../../../script.js";
export { MODULE_NAME };

const MODULE_NAME = 'Assets';
const DEBUG_PREFIX = "<Assets module> ";
let ASSETS_JSON_URL = "https://raw.githubusercontent.com/SillyTavern/SillyTavern-Content/main/index.json"

const extensionName = "assets";
const extensionFolderPath = `scripts/extensions/${extensionName}`;

// DBG
//if (DEBUG_TONY_SAMA_FORK_MODE)
//    ASSETS_JSON_URL = "https://raw.githubusercontent.com/Tony-sama/SillyTavern-Content/main/index.json"
let availableAssets = {};
let currentAssets = {};

//#############################//
//  Extension UI and Settings  //
//#############################//

const defaultSettings = {
}

function downloadAssetsList(url) {
    updateCurrentAssets().then(function () {
        fetch(url)
            .then(response => response.json())
            .then(json => {

                availableAssets = {};
                $("#assets_menu").empty();

                console.debug(DEBUG_PREFIX, "Received assets dictionary", json);

                for (const i of json) {
                    //console.log(DEBUG_PREFIX,i)
                    if (availableAssets[i["type"]] === undefined)
                        availableAssets[i["type"]] = [];

                    availableAssets[i["type"]].push(i);
                }

                console.debug(DEBUG_PREFIX, "Updated available assets to", availableAssets);

                for (const assetType in availableAssets) {
                    let assetTypeMenu = $('<div />', { id: "assets_audio_ambient_div", class: "assets-list-div" });
                    assetTypeMenu.append(`<h3>${assetType}</h3>`)
                    for (const i in availableAssets[assetType]) {
                        const asset = availableAssets[assetType][i];
                        const elemId = `assets_install_${assetType}_${i}`;
                        let element = $('<button />', { id: elemId, type: "button", class: "asset-download-button menu_button" })
                        const label = $("<i class=\"fa-solid fa-download fa-xl\"></i>");
                        element.append(label);

                        //if (DEBUG_TONY_SAMA_FORK_MODE)
                        //    assetUrl = assetUrl.replace("https://github.com/SillyTavern/","https://github.com/Tony-sama/"); // DBG

                        console.debug(DEBUG_PREFIX, "Checking asset", asset["id"], asset["url"]);

                        const assetInstall = async function () {
                            element.off("click");
                            label.removeClass("fa-download");
                            this.classList.add('asset-download-button-loading');
                            await installAsset(asset["url"], assetType, asset["id"]);
                            label.addClass("fa-check");
                            this.classList.remove('asset-download-button-loading');
                            element.on("click", assetDelete);
                            element.on("mouseenter", function(){
                                label.removeClass("fa-check");
                                label.addClass("fa-trash");
                                label.addClass("redOverlayGlow");
                            }).on("mouseleave", function(){
                                label.addClass("fa-check");
                                label.removeClass("fa-trash");
                                label.removeClass("redOverlayGlow");
                            });
                        };

                        const assetDelete = async function() {
                            element.off("click");
                            await deleteAsset(assetType, asset["id"]);
                            label.removeClass("fa-check");
                            label.removeClass("redOverlayGlow");
                            label.removeClass("fa-trash");
                            label.addClass("fa-download");
                            element.off("mouseenter").off("mouseleave");
                            element.on("click", assetInstall);
                        }

                        if (isAssetInstalled(assetType, asset["id"])) {
                            console.debug(DEBUG_PREFIX, "installed, checked");
                            label.toggleClass("fa-download");
                            label.toggleClass("fa-check");
                            element.on("click", assetDelete);
                            element.on("mouseenter", function(){
                                label.removeClass("fa-check");
                                label.addClass("fa-trash");
                                label.addClass("redOverlayGlow");
                            }).on("mouseleave", function(){
                                label.addClass("fa-check");
                                label.removeClass("fa-trash");
                                label.removeClass("redOverlayGlow");
                            });
                        }
                        else {
                            console.debug(DEBUG_PREFIX, "not installed, unchecked")
                            element.prop("checked", false);
                            element.on("click", assetInstall);
                        }

                        console.debug(DEBUG_PREFIX, "Created element for BGM", asset["id"])

                        $(`<i></i>`)
                            .append(element)
                            .append(`<span>${asset["id"]}</span>`)
                            .appendTo(assetTypeMenu);
                    }
                    assetTypeMenu.appendTo("#assets_menu");
                }

                $("#assets_menu").show();
            })
            .catch((error) => {
                console.error(error);
                toastr.error("Problem with assets URL", DEBUG_PREFIX + "Cannot get assets list");
                $('#assets-connect-button').addClass("fa-plug-circle-exclamation");
                $('#assets-connect-button').addClass("redOverlayGlow");
            });
    });
}

function isAssetInstalled(assetType, filename) {
    for (const i of currentAssets[assetType]) {
        //console.debug(DEBUG_PREFIX,i,filename)
        if (i.includes(filename))
            return true;
    }

    return false;
}

async function installAsset(url, assetType, filename) {
    console.debug(DEBUG_PREFIX, "Downloading ", url);
    const category = assetType;
    try {
        const body = { url, category, filename };
        const result = await fetch('/api/assets/download', {
            method: 'POST',
            headers: getRequestHeaders(),
            body: JSON.stringify(body),
            cache: 'no-cache',
        });
        if (result.ok) {
            console.debug(DEBUG_PREFIX, "Download success.")
        }
    }
    catch (err) {
        console.log(err);
        return [];
    }
}

async function deleteAsset(assetType, filename) {
    console.debug(DEBUG_PREFIX, "Deleting ", assetType, filename);
    const category = assetType;
    try {
        const body = { category, filename };
        const result = await fetch('/api/assets/delete', {
            method: 'POST',
            headers: getRequestHeaders(),
            body: JSON.stringify(body),
            cache: 'no-cache',
        });
        if (result.ok) {
            console.debug(DEBUG_PREFIX, "Deletion success.")
        }
    }
    catch (err) {
        console.log(err);
        return [];
    }
}

//#############################//
//  API Calls                  //
//#############################//

async function updateCurrentAssets() {
    console.debug(DEBUG_PREFIX, "Checking installed assets...")
    try {
        const result = await fetch(`/api/assets/get`, {
            method: 'POST',
            headers: getRequestHeaders(),
        });
        currentAssets = result.ok ? (await result.json()) : {};
    }
    catch (err) {
        console.log(err);
    }
    console.debug(DEBUG_PREFIX, "Current assets found:", currentAssets)
}


//#############################//
//  Extension load             //
//#############################//

// This function is called when the extension is loaded
jQuery(async () => {
    // This is an example of loading HTML from a file
    const windowHtml = $(await $.get(`${extensionFolderPath}/window.html`));

    const assetsJsonUrl = windowHtml.find('#assets-json-url-field');
    assetsJsonUrl.val(ASSETS_JSON_URL);

    const connectButton = windowHtml.find('#assets-connect-button');
    connectButton.on("click", async function () {
        const confirmation = await callPopup(`Are you sure you want to connect to '${assetsJsonUrl.val()}'?`, 'confirm')
        if (confirmation) {
            try {
                console.debug(DEBUG_PREFIX, "Confimation, loading assets...");
                downloadAssetsList(assetsJsonUrl.val());
                connectButton.removeClass("fa-plug-circle-exclamation");
                connectButton.removeClass("redOverlayGlow");
                connectButton.addClass("fa-plug-circle-check");
            } catch (error) {
                console.error('Error:', error);
                toastr.error(`Cannot get assets list from ${assetsJsonUrl.val()}`);
                connectButton.removeClass("fa-plug-circle-check");
                connectButton.addClass("fa-plug-circle-exclamation");
                connectButton.removeClass("redOverlayGlow");
            }
        }
        else {
            console.debug(DEBUG_PREFIX, "Connection refused by user");
        }
    });

    $('#extensions_settings').append(windowHtml);
});