import Foundation

/// Represents configurable settings for the command line tool.
public struct Configuration: Codable, Equatable, Sendable {
  public let args: [String]?
  public let useVaultArgs: Bool
  public let playbook: Playbook?
  public let template: Template
  public let vault: Vault

  public init(
    args: [String]? = nil,
    useVaultArgs: Bool = true,
    playbook: Playbook? = nil,
    template: Template = .init(),
    vault: Vault = .init()
  ) {
    self.args = args
    self.useVaultArgs = useVaultArgs
    self.playbook = playbook
    self.template = template
    self.vault = vault
  }

  public static var mock: Self {
    .init(
      args: [],
      useVaultArgs: true,
      playbook: nil,
      template: .mock,
      vault: .mock
    )
  }

  public struct Playbook: Codable, Equatable, Sendable {
    public let directory: String?
    public let inventory: String?

    public init(
      directory: String? = nil,
      inventory: String? = nil
    ) {
      self.directory = directory
      self.inventory = inventory
    }

    public static var mock: Self { .init() }
  }

  public struct Template: Codable, Equatable, Sendable {
    public let url: String?
    public let version: String?
    public let directory: String?

    public init(
      url: String? = nil,
      version: String? = nil,
      directory: String? = nil
    ) {
      self.url = url
      self.version = version
      self.directory = directory
    }

    public static var mock: Self {
      .init(
        url: "https://git.example.com/consult-template.git",
        version: "1.0.0",
        directory: "/path/to/local/template-directory"
      )
    }
  }

  public struct Vault: Codable, Equatable, Sendable {
    public let args: [String]?
    public let encryptId: String?

    public init(
      args: [String]? = nil,
      encryptId: String? = nil
    ) {
      self.args = args
      self.encryptId = encryptId
    }

    public static var mock: Self {
      .init(
        args: [
          "--vault-id=myId@$SCRIPTS/vault-gopass-client"
        ],
        encryptId: "myId"
      )
    }
  }
}

// public struct Configuration: Codable, Equatable, Sendable {
//
//   public let playbookDir: String?
//   public let inventoryPath: String?
//   public let templateRepo: String?
//   public let templateRepoVersion: String?
//   public let templateDir: String?
//   public let defaultPlaybookArgs: [String]?
//   public let defaultVaultArgs: [String]?
//   public let defaultVaultEncryptId: String?
//
//   fileprivate enum CodingKeys: String, CodingKey {
//     case playbookDir = "HPA_PLAYBOOK_DIR"
//     case inventoryPath = "HPA_DEFAULT_INVENTORY"
//     case templateRepo = "HPA_TEMPLATE_REPO"
//     case templateRepoVersion = "HPA_TEMPLATE_VERSION"
//     case templateDir = "HPA_TEMPLATE_DIR"
//     case defaultPlaybookArgs = "HPA_DEFAULT_PLAYBOOK_ARGS"
//     case defaultVaultArgs = "HPA_DEFAULT_VAULT_ARGS"
//     case defaultVaultEncryptId = "HPA_DEFAULT_VAULT_ENCRYPT_ID"
//   }
//
//   public static func fromEnv(
//     _ env: [String: String]
//   ) throws -> Self {
//     @Dependency(\.logger) var logger
//
//     logger.trace("Creating configuration from env...")
//
//     let hpaValues: [String: String] = env.filter { $0.key.contains("HPA") }
//     logger.debug("HPA env vars: \(hpaValues)")
//
//     return Configuration(
//       playbookDir: hpaValues.value(for: .playbookDir),
//       inventoryPath: hpaValues.value(for: .inventoryPath),
//       templateRepo: hpaValues.value(for: .templateRepo),
//       templateRepoVersion: hpaValues.value(for: .templateRepoVersion),
//       templateDir: hpaValues.value(for: .templateDir),
//       defaultPlaybookArgs: hpaValues.array(for: .defaultPlaybookArgs),
//       defaultVaultArgs: hpaValues.array(for: .defaultVaultArgs),
//       defaultVaultEncryptId: hpaValues.value(for: .defaultVaultEncryptId)
//     )
//   }
//
//   static var mock: Self {
//     .init(
//       playbookDir: "/path/to/playbook",
//       inventoryPath: "/path/to/inventory.ini",
//       templateRepo: "https://git.example.com/consult-template.git",
//       templateRepoVersion: "main",
//       templateDir: "/path/to/local/template",
//       defaultPlaybookArgs: ["--tags", "debug"],
//       defaultVaultArgs: ["--vault-id=myId@$SCRIPTS/vault-gopass-client"],
//       defaultVaultEncryptId: "myId"
//     )
//   }
//
//   static var fileTemplate: String {
//     """
//     # vi: ft=sh
//
//     # Example configuration, uncomment the lines and set the values appropriate for your
//     # usage.
//
//     # Set this to the location of the ansible-hpa-playbook on your local machine.
//     #HPA_PLAYBOOK_DIR="/path/to/ansible-hpa-playbook"
//
//     # Set this to the location of a template repository, which is used to create new assessment projects.
//     #HPA_TEMPLATE_REPO="https://git.example.com/your/template.git"
//
//     # Specify a branch, version, or sha of the template repository.
//     #HPA_TEMPLATE_VERSION="main" # branch, version, or sha
//
//     # Set this to a location of a template directory to use to create new projects.
//     #HPA_TEMPLATE_DIR="/path/to/local/template"
//
//     # Extra arguments that get passed directly to the ansible-playbook command.
//     #HPA_DEFAULT_PLAYBOOK_ARGS="--vault-id=consults@$SCRIPTS/vault-gopass-client"
//
//     """
//   }
// }
//
// extension [String: String] {
//   fileprivate func value(for codingKey: Configuration.CodingKeys) -> String? {
//     self[codingKey.rawValue]
//   }
//
//   fileprivate func array(for codingKey: Configuration.CodingKeys) -> [String]? {
//     value(for: codingKey).flatMap { $0.split(separator: ",").map(String.init) }
//   }
// }