import ArgumentParser
import CliClient
import CustomDump
import Dependencies
import DotEnv
import Foundation
import Logging
import Models

extension Application {

  struct Debug: AsyncParsableCommand {

    static let configuration: CommandConfiguration = .init(
      commandName: "debug",
      abstract: "Debug the environment variables."
    )

    @OptionGroup
    var shared: SharedOptions

    @Flag(
      name: [.customLong("show-password")],
      help: "Don't redact the password from the console."
    )
    var showPassword: Bool = false

    mutating func run() async throws {
      @Dependency(\.cliClient) var client
      let logger = Logger(label: "debug-command")

      print("--------------------------")
      print("Running debug command...")
      if let envFile = shared.envFile {
        print("Reading env file: \(envFile)")
        print("--------------------------")
      } else {
        print("No env file set.")
        print("--------------------------")
      }

      print("Loading EnvVars")
      print("--------------------------")
      let envVars = try await client.makeEnvVars(shared.envVarsRequest(logger: logger))
      printEnvVars(envVars: envVars, showPassword: showPassword)
      print("--------------------------")

      if let logLevel = shared.logLevel, let level = logLevel() {
        print("Log Level option: \(level)")
        print("--------------------------")
      } else {
        print("Log Level option: nil")
        print("--------------------------")
      }
    }

    private func printEnvVars(envVars: EnvVars, showPassword: Bool) {
      // show the proper password to show depending on if it exists
      // and if we should redact it or not.
      var passwordString: String?
      switch (showPassword, envVars.password) {
      case (true, .none), (_, .none):
        break
      case (true, let .some(password)):
        passwordString = password
      case (false, .some):
        passwordString = "<redacted>"
      }
      var envVars = envVars
      envVars.password = passwordString
      customDump(envVars)
    }
  }
}