require 'yaml'

skip_docs

simulator_version = "26.1"

before_all do
  xcversion(version: "~> 26.1.0")

  ENV["FASTLANE_XCODEBUILD_SETTINGS_TIMEOUT"] = "180"
  ENV["FASTLANE_XCODE_LIST_TIMEOUT"] = "180"
end

lane :release_to_github do
  api_token = ENV["GITHUB_TOKEN"]
  UI.user_error!("Invalid GitHub API token.") unless !api_token.to_s.empty?

  release_version = get_version_number(target: "ElementX")

  github_release = set_github_release(
    repository_name: "element-hq/element-x-ios",
    api_token: api_token,
    name: release_version,
    tag_name: "release/#{release_version}",
    is_generate_release_notes: true,
  )
  
  release_date = Date.today.strftime("%Y-%m-%d")
  generated_notes = github_release["body"].gsub(/<!-- .*? -->/, '').gsub("### ", "\n").gsub("## ", "### ")
  UI.user_error!("The generated release notes are missing!") unless !generated_notes.to_s.empty?
  
  # Prepend the new release notes to the CHANGES.md file
  changes_file = "../CHANGES.md"
  File.open(changes_file, "r+") do |file|
    content = file.read
    file.rewind
    file.write("## Changes in #{release_version} (#{release_date})#{generated_notes}\n\n#{content}")
  end
  
  # The changelog will be committed when prepare_next_release is called.
  sh("git add #{changes_file}")
end

lane :prepare_next_release do
  target_file_path = "../project.yml"
  xcode_project_file_path = "../ElementX.xcodeproj"

  data = YAML.load_file target_file_path
  current_version = data["settings"]["MARKETING_VERSION"]
  
  matches = current_version.match(/^(\d{2})\.(\d{2})\.(\d+)$/)
  unless matches
    UI.user_error!("Invalid version format: #{current_version}")
  end

  year, month, build = matches.captures
  new_build = build.to_i + 1
  new_version = "#{year}.#{month}.#{new_build}"

  # Bump the patch version. The empty string after -i is so that sed doesn't
  # create a backup file on macOS
  sh("sed -i '' 's/MARKETING_VERSION: #{current_version}/MARKETING_VERSION: #{new_version}/g' #{target_file_path}")
  UI.message("Version updated from #{current_version} to #{new_version}")

  xcodegen(spec: "project.yml")

  setup_git()

  sh("git add #{target_file_path} #{xcode_project_file_path}")

  sh("git commit -m 'Prepare next release'")

  git_push()

  rebase_main_onto_current_branch()
end

def rebase_main_onto_current_branch
  # Capture the current branch name
  current_branch = sh("git rev-parse --abbrev-ref HEAD").strip

  UI.message("Current branch: #{current_branch}")

  # Switch to main and update it
  sh("git reset --hard")
  sh("git checkout main")
  sh("git pull origin main")
  sh("git rebase #{current_branch}")

  git_push()

  UI.success("Successfully rebased main onto #{current_branch}")
end

private_lane :setup_git do
  sh("git config --global user.name 'Element CI'")
  sh("git config --global user.email 'ci@element.io'")
end

private_lane :git_push do |options|
  # Use the Github API token for repo write access
  api_token = ENV["GITHUB_TOKEN"]
  UI.user_error!("Invalid GitHub API token.") unless !api_token.to_s.empty?

  # Get repo url path, without `http`, `https` or `git@` prefixes or `.git` suffix
  repo_url = sh("git ls-remote --get-url origin | sed 's#http://##g' | sed 's#https:\/\/##g' | sed 's#git@##g' | sed 's#.git##g'")

  # This sometimes has a trailing newline
  repo_url = repo_url.strip

  # Push the tag separately if available
  if options[:tag_name]
    sh("git push https://#{api_token}@#{repo_url} #{options[:tag_name]}")
  end
    
  sh("git push https://#{api_token}@#{repo_url}")
end

private_lane :bump_build_number do
  # Increment build number to current date
  build_number = Time.now.strftime("%Y%m%d%H%M")
  increment_build_number(build_number: build_number)
end