feat: Working on cli client and tests

Sources/CliClient/EnvironmentDependency.swift

@@ -0,0 +1,71 @@
+import Dependencies
+import DependenciesMacros
+import DotEnv
+import Foundation
+import Models
+
+@_spi(Internal)
+public extension DependencyValues {
+  var environment: EnvironmentDependency {
+    get { self[EnvironmentDependency.self] }
+    set { self[EnvironmentDependency.self] = newValue }
+  }
+}
+
+/// Responsible for loading environment variables and files.
+///
+///
+@_spi(Internal)
+@DependencyClient
+public struct EnvironmentDependency: Sendable {
+
+  /// Load the variables based on the request.
+  public var load: @Sendable (FileType) async throws -> [String: String] = { _ in [:] }
+
+  public var processInfo: @Sendable () -> [String: String] = { [:] }
+
+  public enum FileType: Equatable {
+    case dotEnv(path: String)
+    case json(path: String)
+
+    init?(path: String) {
+      let strings = path.split(separator: ".")
+      guard let ext = strings.last else {
+        return nil
+      }
+      switch ext {
+      case "env":
+        self = .dotEnv(path: path)
+      case "json":
+        self = .json(path: path)
+      default:
+        return nil
+      }
+    }
+  }
+}
+
+@_spi(Internal)
+extension EnvironmentDependency: DependencyKey {
+
+  public static let testValue: EnvironmentDependency = Self()
+
+  public static let liveValue: EnvironmentDependency = Self(
+    load: { file in
+      switch file {
+      case let .dotEnv(path: path):
+        let file = try DotEnv.read(path: path)
+        return file.lines.reduce(into: [String: String]()) { partialResult, line in
+          partialResult[line.key] = line.value
+        }
+      case let .json(path: path):
+        let url = URL(filePath: path)
+        return try JSONDecoder().decode(
+          [String: String].self,
+          from: Data(contentsOf: url)
+        )
+      }
+    },
+    processInfo: { ProcessInfo.processInfo.environment }
+  )
+}