const formatMessage = require('format-message');
const BlockType = require('../../extension-support/block-type');
const ArgumentType = require('../../extension-support/argument-type');

class TutorialModDialogsExtension {
    constructor (runtime) {
        /**
         * The runtime instantiating this block package.
         * @type {Runtime}
         */
        this.runtime = runtime;
    }

    /**
     * @returns {object} metadata for this extension and its blocks.
     */
    getInfo () {
        return {
            id: 'jsdialogs',
            name: formatMessage({
                id: 'dialogs.categoryName',
                default: 'Dialogs',
                description: 'Name of the Dialogs extension.'
            }),
            // blockIconURI
            // menuIconURI
            blocks: [
                {
                    opcode: 'js_alert',
                    text: formatMessage({
                        id: 'dialogs.alertBlock',
                        default: 'alert [MESSAGE]',
                        description: 'Alert dialog'
                    }),
                    blockType: BlockType.COMMAND,
                    arguments: {
                        MESSAGE: {
                            type: ArgumentType.STRING,
                            defaultValue: formatMessage({
                                id: 'dialogs.hello',
                                default: 'Hello!',
                                description: 'Hello!'
                            })
                        }
                    }
                },
                {
                    opcode: 'js_prompt',
                    text: formatMessage({
                        id: 'dialogs.promptBlock',
                        default: 'prompt [MESSAGE]',
                        description: 'Prompt dialog'
                    }),
                    blockType: BlockType.REPORTER,
                    arguments: {
                        MESSAGE: {
                            type: ArgumentType.STRING,
                            defaultValue: formatMessage({
                                id: 'dialogs.hello',
                                default: 'Hello!',
                                description: 'Hello!'
                            })
                        }
                    }
                },
                {
                    opcode: 'js_confirm',
                    text: formatMessage({
                        id: 'dialogs.confirmBlock',
                        default: 'confirm [MESSAGE]',
                        description: 'Confirm dialog'
                    }),
                    blockType: BlockType.BOOLEAN,
                    arguments: {
                        MESSAGE: {
                            type: ArgumentType.STRING,
                            defaultValue: formatMessage({
                                id: 'dialogs.hello',
                                default: 'Hello!',
                                description: 'Hello!'
                            })
                        }
                    }
                }
            ]
        };
    }

    js_alert (args, util) {
        // eslint-disable-next-line
        alert(args.MESSAGE);
    }

    js_prompt (args, util) {
        // eslint-disable-next-line
        return prompt(args.MESSAGE);
    }

    js_confirm (args, util) {
        // eslint-disable-next-line
        return confirm(args.MESSAGE);
    }
}

module.exports = TutorialModDialogsExtension;