const errors = require('./errors.json')

class ErrorManager {
    constructor() {
        this.errors = errors
    }

    getErrorText(errorName, parameters, language) {
        if (!this.errors.hasOwnProperty(errorName)) {
            return 'Error not found.'
        }

        const error = this.errors[errorName]
        let errorMessage = ''

        if (language === 'english') {
            errorMessage = error.english
        } else if (language === 'persian') {
            errorMessage = error.persian
        } else {
            return 'Unsupported language.'
        }

        if (parameters) {
            for (const param in parameters) {
                if (parameters.hasOwnProperty(param)) {
                    errorMessage = errorMessage.replace(
                        `#${param}#`,
                        parameters[param]
                    )
                }
            }
        }

        return errorMessage
    }
}

module.exports = ErrorManager