class Message {
    constructor(messageList) {
        this.messages = new Map();
        this.setMessages(messageList);
    }

    setMessages(messageList) {
        if (messageList instanceof Map) {
            this.messages = messageList;
        } else {
            this.messages.clear();
            for (let key in messageList) {
                this.messages.set(key, messageList[key]);
            }
        }
    }

    localize(msgId, args) {
        if (this.messages.has(msgId)) {
            return this.replaceVariables(this.messages.get(msgId) || '{' + msgId + '}', args);
        } else {
            return '{' + msgId + '}';
        }
    }

    // Alias for compatibility
    text(msgId, args) {
        return this.localize(msgId, args);
    }

    replaceVariables(template, params = []) {
        let result = template;
        let paramId;
        result = result.replace(/(?<!\\)\$\{(\w+)\}/g, (...matches) => {
            paramId = parseInt(matches[1]) - 1;
            console.log(paramId);
            if (params[paramId]) {
                return params[paramId];
            } else {
                return '';
            }
        });

        return result;
    }

    static makeGlobal(messageList = []) {
        window.msg = new Message(messageList);
    }
}

Message.makeGlobal();

class Config {
    constructor(configList) {
        this.configs = new Map();
        this.setConfigs(configList);
    }

    setConfigs(configList) {
        if (configList instanceof Map) {
            this.configs = configList;
        } else {
            this.configs.clear();
            for (let key in configList) {
                this.configs.set(key, configList[key]);
            }
        }
    }

    get(configId, defaultValue = null) {
        if (this.configs.has(configId)) {
            return this.configs.get(configId) 
        } else {
            return defaultValue;
        }
    }

    static makeGlobal(configList = []) {
        window.config = new Config(configList);
    }
}

Config.makeGlobal();

document.addEventListener('DOMContentLoaded', function () {
    const messages = document.querySelector('script[type="application/json"][data-messages]');
    if (messages) {
        const messageList = JSON.parse(messages.textContent);
        window.msg.setMessages(messageList);
    }

    const configs = document.querySelector('script[type="application/json"][data-configs]');
    if (configs) {
        const configList = JSON.parse(configs.textContent);
        window.config.setConfigs(configList);
    }
});