Sources/XCMetricsClient/Mobius/Logger/MetricsUploaderLogger.swift

// Copyright (c) 2020 Spotify AB.
//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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.

import Foundation
import MobiusCore
import XCMetricsUtils

private let tag = "XCMetrics"

class MetricsUploaderLogger: MobiusLogger {
    typealias Model = MetricsUploaderModel
    typealias Event = MetricsUploaderEvent
    typealias Effect = MetricsUploaderEffect

    private let prefix: String

    public init(tag: String = "Mobius") {
        prefix = tag + ": "
    }

    public func willInitiate(model: Model) {
        print("Initializing loop")
    }

    public func didInitiate(model: Model, first: First<Model, Effect>) {
        print("Loop initialized, starting from model: \(first.model)")

        first.effects.forEach { (effect: Effect) in
            print("Effect dispatched: \(effect)")
        }
    }

    public func willUpdate(model: Model, event: Event) {
        print("Event received: \(event)")
    }

    public func didUpdate(model: Model, event: Event, next: Next<Model, Effect>) {
        if let nextModel = next.model {
            print("Model updated: \(nextModel)")
        }

        next.effects.forEach { (effect: Effect) in
            print("Effect dispatched: \(effect)")
        }
    }

    private func print(_ message: String) {
        log(prefix + message)
    }
}