const BlockType = require('../../extension-support/block-type');
const ArgumentType = require('../../extension-support/argument-type');
const SandboxRunner = require('../../util/sandboxed-javascript-runner');
const Cast = require('../../util/cast');

class jgJavascript {
    constructor(runtime) {
        this.runtime = runtime;
        this.runningEditorUnsandboxed = true; // デフォルトでunsandboxedに変更
    }

    getInfo() {
        return {
            id: 'jgJavascript',
            name: 'JavaScript',
            isDynamic: true,
            blocks: [
                {
                    opcode: 'sandboxToggle',
                    text: 'サンドボックスを[STATE]にする',
                    blockType: BlockType.COMMAND,
                    arguments: {
                        STATE: {
                            type: ArgumentType.STRING,
                            menu: 'sandboxStateMenu',
                            defaultValue: 'オフ'
                        }
                    }
                },
                {
                    opcode: 'isSandboxed',
                    text: 'サンドボックスあり？',
                    blockType: BlockType.BOOLEAN
                },
                {
                    opcode: 'javascriptHat',
                    text: 'when javascript [CODE] == true',
                    blockType: BlockType.HAT,
                    hideFromPalette: !this.runningEditorUnsandboxed,
                    arguments: {
                        CODE: {
                            type: ArgumentType.STRING,
                            defaultValue: "Math.round(Math.random()) === 1"
                        }
                    }
                },
                {
                    opcode: 'javascriptStack',
                    text: 'javascript [CODE]',
                    blockType: BlockType.COMMAND,
                    arguments: {
                        CODE: {
                            type: ArgumentType.STRING,
                            defaultValue: "alert('Hello!')"
                        }
                    }
                },
                {
                    opcode: 'javascriptString',
                    text: 'javascript [CODE]',
                    blockType: BlockType.REPORTER,
                    disableMonitor: true,
                    arguments: {
                        CODE: {
                            type: ArgumentType.STRING,
                            defaultValue: "Math.random()"
                        }
                    }
                },
                {
                    opcode: 'javascriptBool',
                    text: 'javascript [CODE]',
                    blockType: BlockType.BOOLEAN,
                    disableMonitor: true,
                    arguments: {
                        CODE: {
                            type: ArgumentType.STRING,
                            defaultValue: "Math.round(Math.random()) === 1"
                        }
                    }
                }
            ],
            menus: {
                sandboxStateMenu: {
                    acceptReporters: true,
                    items: [
                        { text: 'オン', value: 'オン' },
                        { text: 'オフ', value: 'オフ' }
                    ]
                }
            }
        };
    }

    sandboxToggle(args) {
        const state = Cast.toString(args.STATE);
        this.runningEditorUnsandboxed = (state === 'オフ');
        this.runtime.extensionManager.refreshBlocks("jgJavascript");
    }

    isSandboxed() {
        return !this.runningEditorUnsandboxed;
    }

    async evaluateCode(code, args, util, realBlockInfo) {
        if (this.runtime.extensionRuntimeOptions.javascriptUnsandboxed === true || this.runningEditorUnsandboxed) {
            let result;
            try {
                // eslint-disable-next-line no-eval
                result = eval(code);
            } catch (err) {
                result = err;
            }
            return result;
        }
        return new Promise((resolve) => {
            SandboxRunner.execute(code).then(result => {
                return resolve(result.value);
            });
        });
    }

    javascriptStack(args, util, realBlockInfo) {
        const code = Cast.toString(args.CODE);
        return this.evaluateCode(code, args, util, realBlockInfo);
    }

    javascriptString(args, util, realBlockInfo) {
        const code = Cast.toString(args.CODE);
        return this.evaluateCode(code, args, util, realBlockInfo);
    }

    javascriptBool(args, util, realBlockInfo) {
        const code = Cast.toString(args.CODE);
        const possiblePromise = this.evaluateCode(code, args, util, realBlockInfo);
        if (possiblePromise && typeof possiblePromise.then === 'function') {
            return (async () => {
                const value = await possiblePromise;
                return Boolean(value);
            })();
        }
        return Boolean(possiblePromise);
    }

    javascriptHat(...args) {
        if (!this.runtime.extensionRuntimeOptions.javascriptUnsandboxed && !this.runningEditorUnsandboxed) {
            return false;
        }
        const possiblePromise = this.javascriptBool(...args);
        if (possiblePromise && typeof possiblePromise.then === 'function') {
            return false;
        }
        return possiblePromise;
    }
}

module.exports = jgJavascript;