import Foundation
import Testing

@testable import FlutterToolHelper

@Test(
  "Parse Flutter Build Mode from Environment",
  arguments: [
    (["CONFIGURATION": "Debug"], "Debug"),
    (["CONFIGURATION": "debug"], "Debug"),
    (["CONFIGURATION": "Release"], "Release"),
    (["CONFIGURATION": "release"], "Release"),
    (["CONFIGURATION": "Profile"], "Profile"),
    (["CONFIGURATION": "profile"], "Profile"),
    (["CONFIGURATION": "Debug-vanilla"], "Debug"),
    (["FLUTTER_BUILD_MODE": "Debug-vanilla"], "Debug"),
  ]
)
func parseFlutterBuildModeSuccess(
  env: [String: String],
  expectedBuildMode: String
) async throws {
  let buildMode = try FlutterToolHelper.parseFlutterBuildMode(env: env)
  #expect(buildMode == expectedBuildMode)
}

@Test(
  "Parse Flutter Build Mode from Environment Throws",
  arguments: [
    (["CONFIGURATION": "ASDF"]),
    (["FLUTTER_BUILD_MODE": "ASDF"]),
    ([:]),
  ]
)
func parseFlutterBuildModeThrows(env: [String: String]) async throws {
  #expect(throws: XcodeErrorAndExit.self) {
    try FlutterToolHelper.parseFlutterBuildMode(env: env)
  }
}

@Test
func findOrExitSuccess() async throws {
  let value = try FlutterToolHelper.findOrExit(env: ["A": "a"], key: "A")
  #expect(value == "a")
}

@Test
func findOrExitThrows() async throws {
  #expect(throws: XcodeErrorAndExit.self) {
    try FlutterToolHelper.findOrExit(env: ["A": "a"], key: "a")
  }
}

@Test(
  "Parse target platform from build settings",
  arguments: [
    (["PLATFORM_NAME": "iphoneos"], FlutterPlatform.ios),
    (["PLATFORM_NAME": "iphonesimulator"], FlutterPlatform.ios),
    (["PLATFORM_NAME": "macosx"], FlutterPlatform.macos),
  ]
)
func targetPlatform(env: [String: String], expectedPlatform: FlutterPlatform) async throws {
  let platform = try FlutterToolHelper.targetPlatform(env: env)
  #expect(platform == expectedPlatform)
}

@Test(
  "Parse target platform from build settings",
  arguments: [
    (["PLATFORM_NAME": "watchos"]),
    ([:]),
  ]
)
func targetPlatformThrows(env: [String: String]) async throws {
  #expect(throws: XcodeErrorAndExit.self) {
    try FlutterToolHelper.targetPlatform(env: env)
  }
}

@Test
func updateSymlinkNoChange() async throws {
  let fileManager = MockFileManager()

  let targetBuildMode = "Release"
  try FlutterToolHelper.updateSymlink(
    targetBuildMode: targetBuildMode,
    integrationPackagePath: "/path/to/SwiftPackages/FlutterNativeIntegration",
    fileManager: fileManager
  )

  #expect(fileManager.filesRemoved.count == 0)
  #expect(fileManager.symlinksCreated.count == 0)
}

@Test
func updateSymlinkSuccess() async throws {
  let fileManager = MockFileManager()

  let targetBuildMode = "Debug"
  let targetName = "FlutterPluginRegistrant"
  let expectedLink = "./\(targetBuildMode)"
  let flutterPluginRegistrantPath = "/path/to/SwiftPackages/FlutterNativeIntegration"
  let currentLinkPath = "\(flutterPluginRegistrantPath)/\(targetName)"
  let newTargetPath = "\(flutterPluginRegistrantPath)/\(expectedLink)"
  fileManager.filesExist[newTargetPath] = true
  fileManager.filesExist[currentLinkPath] = true

  try FlutterToolHelper.updateSymlink(
    targetBuildMode: targetBuildMode,
    integrationPackagePath: flutterPluginRegistrantPath,
    fileManager: fileManager
  )

  #expect(fileManager.filesRemoved.count == 1)
  #expect(fileManager.filesRemoved.first == currentLinkPath)
  #expect(fileManager.symlinksCreated.count == 1)
  #expect(fileManager.symlinksCreated[currentLinkPath] == expectedLink)
}

@Test
func updateSymlinkThrowsIfNewLinkDoesNotExist() async throws {
  let fileManager = MockFileManager()
  let targetBuildMode = "Debug"
  let targetName = "FlutterPluginRegistrant"
  let flutterPluginRegistrantPath = "/path/to/SwiftPackages/FlutterPluginRegistrant"
  let currentLinkPath = "\(flutterPluginRegistrantPath)/\(targetName)"
  fileManager.filesExist[currentLinkPath] = true

  #expect(throws: XcodeErrorAndExit.self) {
    try FlutterToolHelper.updateSymlink(
      targetBuildMode: targetBuildMode,
      integrationPackagePath: "/path/to/SwiftPackages/FlutterNativeIntegration",
      fileManager: fileManager
    )
  }
}