first commit

.gitignore

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+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## User settings
+xcuserdata/
+
+## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
+*.xcscmblueprint
+*.xccheckout
+
+## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
+build/
+DerivedData/
+*.moved-aside
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+
+## Obj-C/Swift specific
+*.hmap
+
+## App packaging
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+# Package.pins
+# Package.resolved
+# *.xcodeproj
+#
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+# .swiftpm
+
+.build/
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+#
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+# *.xcworkspace
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+#
+# After new code Injection tools there's a generated folder /iOSInjectionProject
+# https://github.com/johnno1962/injectionforxcode
+
+iOSInjectionProject/
+
+# MacOS
+#
+# Taken from https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
+
+## General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+## Icon must end with two \r
+Icon
+
+## Thumbnails
+._*
+
+## Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+## Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk

.swiftpm/xcode/xcshareddata/xcschemes/Logger.xcscheme

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+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1250"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "Logger"
+               BuildableName = "Logger"
+               BlueprintName = "Logger"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "NO"
+            buildForArchiving = "NO"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "LoggerTests"
+               BuildableName = "LoggerTests"
+               BlueprintName = "LoggerTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      codeCoverageEnabled = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "LoggerTests"
+               BuildableName = "LoggerTests"
+               BlueprintName = "LoggerTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "Logger"
+            BuildableName = "Logger"
+            BlueprintName = "Logger"
+            ReferencedContainer = "container:">
+         </BuildableReference>
+      </MacroExpansion>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

Package.resolved

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+{
+  "object": {
+    "pins": [
+      {
+        "package": "CocoaLumberjack",
+        "repositoryURL": "https://github.com/CocoaLumberjack/CocoaLumberjack.git",
+        "state": {
+          "branch": null,
+          "revision": "e518eb6e362df327574ba5e04269cd6d29f40aec",
+          "version": "3.7.2"
+        }
+      },
+      {
+        "package": "swift-log",
+        "repositoryURL": "https://github.com/apple/swift-log.git",
+        "state": {
+          "branch": null,
+          "revision": "5d66f7ba25daf4f94100e7022febf3c75e37a6c7",
+          "version": "1.4.2"
+        }
+      }
+    ]
+  },
+  "version": 1
+}

Package.swift

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+// swift-tools-version:5.3
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "Logger",
+    platforms: [
+        .iOS(.v13)
+    ],
+    products: [
+        // Products define the executables and libraries a package produces, and make them visible to other packages.
+        .library(
+            name: "Logger",
+            targets: ["Logger"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        .package(name: "CocoaLumberjack",
+                 url: "https://github.com/CocoaLumberjack/CocoaLumberjack.git",
+                 from: "3.7.0"),
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages this package depends on.
+        .target(
+            name: "Logger",
+            dependencies: ["CocoaLumberjack"]),
+        .testTarget(
+            name: "LoggerTests",
+            dependencies: ["Logger"]),
+    ]
+)

README.md

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+# Logger
+
+A description of this package.

Sources/Logger/Delivery/Logger.swift

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+//
+//  Logger.swift
+//  
+//
+//  Created by Martin Dutra on 22/11/21.
+//
+
+import Foundation
+
+public class Logger {
+
+    public enum Reason: String {
+        case apiError
+        case botError
+        case missingValue
+        case incorrectValue
+    }
+
+    public static let shared = Logger()
+
+    var service: LoggerService
+
+    init(service: LoggerService = CocoaLumberjackService()) {
+        self.service = service
+    }
+
+    public var fileUrls: [URL] {
+        return service.fileUrls
+    }
+
+    public func optional(_ error: Error?, _ detail: String?) -> Bool {
+        service.optional(error, detail)
+    }
+
+    public func info(_ string: String) {
+        service.info(string)
+    }
+
+    public func debug(_ string: String) {
+        service.debug(string)
+    }
+
+    public func unexpected(_ reason: Reason, _ detail: String?) {
+        service.unexpected(reason.rawValue, detail)
+    }
+
+    public func fatal(_ reason: Reason, _ detail: String?) {
+        service.fatal(reason.rawValue, detail)
+    }
+
+}

Sources/Logger/Domain/Services/LoggerService.swift

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+//
+//  LoggerService.swift
+//  
+//
+//  Created by Martin Dutra on 22/11/21.
+//
+
+import Foundation
+
+protocol LoggerService {
+
+    var fileUrls: [URL] { get }
+
+    func optional(_ error: Error?, _ detail: String?) -> Bool
+    func info(_ string: String)
+    func debug(_ string: String)
+    func unexpected(_ reason: String, _ detail: String?)
+    func fatal(_ reason: String, _ detail: String?)
+
+}