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Edit File: index.esm5.js

import { __spreadArray } from 'tslib';

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var _a;
/**
 * A container for all of the Logger instances
 */
var instances = [];
/**
 * The JS SDK supports 5 log levels and also allows a user the ability to
 * silence the logs altogether.
 *
 * The order is a follows:
 * DEBUG < VERBOSE < INFO < WARN < ERROR
 *
 * All of the log types above the current log level will be captured (i.e. if
 * you set the log level to `INFO`, errors will still be logged, but `DEBUG` and
 * `VERBOSE` logs will not)
 */
var LogLevel;
(function (LogLevel) {
    LogLevel[LogLevel["DEBUG"] = 0] = "DEBUG";
    LogLevel[LogLevel["VERBOSE"] = 1] = "VERBOSE";
    LogLevel[LogLevel["INFO"] = 2] = "INFO";
    LogLevel[LogLevel["WARN"] = 3] = "WARN";
    LogLevel[LogLevel["ERROR"] = 4] = "ERROR";
    LogLevel[LogLevel["SILENT"] = 5] = "SILENT";
})(LogLevel || (LogLevel = {}));
var levelStringToEnum = {
    'debug': LogLevel.DEBUG,
    'verbose': LogLevel.VERBOSE,
    'info': LogLevel.INFO,
    'warn': LogLevel.WARN,
    'error': LogLevel.ERROR,
    'silent': LogLevel.SILENT
};
/**
 * The default log level
 */
var defaultLogLevel = LogLevel.INFO;
/**
 * By default, `console.debug` is not displayed in the developer console (in
 * chrome). To avoid forcing users to have to opt-in to these logs twice
 * (i.e. once for firebase, and once in the console), we are sending `DEBUG`
 * logs to the `console.log` function.
 */
var ConsoleMethod = (_a = {},
    _a[LogLevel.DEBUG] = 'log',
    _a[LogLevel.VERBOSE] = 'log',
    _a[LogLevel.INFO] = 'info',
    _a[LogLevel.WARN] = 'warn',
    _a[LogLevel.ERROR] = 'error',
    _a);
/**
 * The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR
 * messages on to their corresponding console counterparts (if the log method
 * is supported by the current log level)
 */
var defaultLogHandler = function (instance, logType) {
    var args = [];
    for (var _i = 2; _i < arguments.length; _i++) {
        args[_i - 2] = arguments[_i];
    }
    if (logType < instance.logLevel) {
        return;
    }
    var now = new Date().toISOString();
    var method = ConsoleMethod[logType];
    if (method) {
        console[method].apply(console, __spreadArray(["[".concat(now, "]  ").concat(instance.name, ":")], args, false));
    }
    else {
        throw new Error("Attempted to log a message with an invalid logType (value: ".concat(logType, ")"));
    }
};
var Logger = /** @class */ (function () {
    /**
     * Gives you an instance of a Logger to capture messages according to
     * Firebase's logging scheme.
     *
     * @param name The name that the logs will be associated with
     */
    function Logger(name) {
        this.name = name;
        /**
         * The log level of the given Logger instance.
         */
        this._logLevel = defaultLogLevel;
        /**
         * The main (internal) log handler for the Logger instance.
         * Can be set to a new function in internal package code but not by user.
         */
        this._logHandler = defaultLogHandler;
        /**
         * The optional, additional, user-defined log handler for the Logger instance.
         */
        this._userLogHandler = null;
        /**
         * Capture the current instance for later use
         */
        instances.push(this);
    }
    Object.defineProperty(Logger.prototype, "logLevel", {
        get: function () {
            return this._logLevel;
        },
        set: function (val) {
            if (!(val in LogLevel)) {
                throw new TypeError("Invalid value \"".concat(val, "\" assigned to `logLevel`"));
            }
            this._logLevel = val;
        },
        enumerable: false,
        configurable: true
    });
    // Workaround for setter/getter having to be the same type.
    Logger.prototype.setLogLevel = function (val) {
        this._logLevel = typeof val === 'string' ? levelStringToEnum[val] : val;
    };
    Object.defineProperty(Logger.prototype, "logHandler", {
        get: function () {
            return this._logHandler;
        },
        set: function (val) {
            if (typeof val !== 'function') {
                throw new TypeError('Value assigned to `logHandler` must be a function');
            }
            this._logHandler = val;
        },
        enumerable: false,
        configurable: true
    });
    Object.defineProperty(Logger.prototype, "userLogHandler", {
        get: function () {
            return this._userLogHandler;
        },
        set: function (val) {
            this._userLogHandler = val;
        },
        enumerable: false,
        configurable: true
    });
    /**
     * The functions below are all based on the `console` interface
     */
    Logger.prototype.debug = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        this._userLogHandler && this._userLogHandler.apply(this, __spreadArray([this, LogLevel.DEBUG], args, false));
        this._logHandler.apply(this, __spreadArray([this, LogLevel.DEBUG], args, false));
    };
    Logger.prototype.log = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        this._userLogHandler && this._userLogHandler.apply(this, __spreadArray([this, LogLevel.VERBOSE], args, false));
        this._logHandler.apply(this, __spreadArray([this, LogLevel.VERBOSE], args, false));
    };
    Logger.prototype.info = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        this._userLogHandler && this._userLogHandler.apply(this, __spreadArray([this, LogLevel.INFO], args, false));
        this._logHandler.apply(this, __spreadArray([this, LogLevel.INFO], args, false));
    };
    Logger.prototype.warn = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        this._userLogHandler && this._userLogHandler.apply(this, __spreadArray([this, LogLevel.WARN], args, false));
        this._logHandler.apply(this, __spreadArray([this, LogLevel.WARN], args, false));
    };
    Logger.prototype.error = function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        this._userLogHandler && this._userLogHandler.apply(this, __spreadArray([this, LogLevel.ERROR], args, false));
        this._logHandler.apply(this, __spreadArray([this, LogLevel.ERROR], args, false));
    };
    return Logger;
}());
function setLogLevel(level) {
    instances.forEach(function (inst) {
        inst.setLogLevel(level);
    });
}
function setUserLogHandler(logCallback, options) {
    var _loop_1 = function (instance) {
        var customLogLevel = null;
        if (options && options.level) {
            customLogLevel = levelStringToEnum[options.level];
        }
        if (logCallback === null) {
            instance.userLogHandler = null;
        }
        else {
            instance.userLogHandler = function (instance, level) {
                var args = [];
                for (var _i = 2; _i < arguments.length; _i++) {
                    args[_i - 2] = arguments[_i];
                }
                var message = args
                    .map(function (arg) {
                    if (arg == null) {
                        return null;
                    }
                    else if (typeof arg === 'string') {
                        return arg;
                    }
                    else if (typeof arg === 'number' || typeof arg === 'boolean') {
                        return arg.toString();
                    }
                    else if (arg instanceof Error) {
                        return arg.message;
                    }
                    else {
                        try {
                            return JSON.stringify(arg);
                        }
                        catch (ignored) {
                            return null;
                        }
                    }
                })
                    .filter(function (arg) { return arg; })
                    .join(' ');
                if (level >= (customLogLevel !== null && customLogLevel !== void 0 ? customLogLevel : instance.logLevel)) {
                    logCallback({
                        level: LogLevel[level].toLowerCase(),
                        message: message,
                        args: args,
                        type: instance.name
                    });
                }
            };
        }
    };
    for (var _i = 0, instances_1 = instances; _i < instances_1.length; _i++) {
        var instance = instances_1[_i];
        _loop_1(instance);
    }
}

export { LogLevel, Logger, setLogLevel, setUserLogHandler };
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