import ArgumentParser
import CliVersion
import Foundation
import ShellClient

extension CliVersionCommand {
  struct Build: AsyncParsableCommand {
    static var configuration: CommandConfiguration = .init(
      abstract: "Used for the build with version plugin.",
      discussion: "This should generally not be interacted with directly, outside of the build plugin."
    )

    @OptionGroup var shared: SharedOptions

    @Option(
      name: .customLong("git-directory"),
      help: "The git directory for the version."
    )
    var gitDirectory: String

    // TODO: Use CliClient
    func run() async throws {
      try await withDependencies {
        $0.logger.logLevel = .debug
        $0.fileClient = .liveValue
        $0.gitVersionClient = .liveValue
      } operation: {
        @Dependency(\.gitVersionClient) var gitVersion
        @Dependency(\.fileClient) var fileClient
        @Dependency(\.logger) var logger: Logger

        logger.info("Building with git-directory: \(gitDirectory)")

        let fileUrl = URL(fileURLWithPath: shared.target)
          .appendingPathComponent(shared.fileName)

        let fileString = fileUrl.fileString()
        logger.info("File Url: \(fileString)")

        let currentVersion = try await gitVersion.currentVersion(in: gitDirectory)

        let fileContents = buildTemplate
          .replacingOccurrences(of: "nil", with: "\"\(currentVersion)\"")

        try await fileClient.write(string: fileContents, to: fileUrl)
        logger.info("Updated version file: \(fileString)")
      }
    }
  }
}