Dangerfile

# Sometimes it's a README fix, or something like that - which isn't relevant for
# including in a project's CHANGELOG for example
not_declared_trivial = !(github.pr_title.include? "#trivial")
has_app_changes = !git.modified_files.grep(/Sources/).empty?

# Make it more obvious that a PR is a work in progress and shouldn't be merged yet
warn("PR is classed as Work in Progress") if github.pr_title.include? "WIP"

# Warn when there is a big PR
warn("Big PR, try to keep changes smaller if you can") if git.lines_of_code > 500

# Added (or removed) library files need to be added (or removed) from the
# Carthage Xcode project to avoid breaking things for our Carthage users.
added_swift_library_files = !(git.added_files.grep(/Sources.*\.swift/).empty?)
deleted_swift_library_files = !(git.deleted_files.grep(/Sources.*\.swift/).empty?)
modified_carthage_xcode_project = !(git.modified_files.grep(/SwiftQueue\.xcodeproj/).empty?)
if (added_swift_library_files || deleted_swift_library_files) && !modified_carthage_xcode_project
  fail("Added or removed library files require the Carthage Xcode project to be updated.")
end

# Check for dependencies update
podspec_updated = !git.modified_files.grep(/SwiftQueue.podspec/).empty?

cartfile_updated = !git.modified_files.grep(/Cartfile/).empty?
cartfile_resolved_updated = !git.modified_files.grep(/Cartfile.resolved/).empty?

spm_updated = !git.modified_files.grep(/Package.swift/).empty?
spm_resolved_updated = !git.modified_files.grep(/Package.resolved/).empty?

# Warn if Cartfile is updated but not Cartfile.resolved
if cartfile_updated && !cartfile_resolved_updated
  warn("The `Cartfile` has been updated but not the `Cartfile.resolved`. Did you forgot to run `carthage update` ?")
end

# Warn if Package.swift is updated but not Package.resolved
if spm_updated && !spm_resolved_updated
  warn("The `Package.swift` has been updated but not the `Package.resolved`. Did you forgot to run `swift package update` ?")
end

# Warn if Package.resolved and cartfile.resolved are not updated at the same time
if (cartfile_resolved_updated && !spm_resolved_updated) || (spm_resolved_updated && !cartfile_resolved_updated)
  warn("The `Package.resolved` or `cartfile.resolved` was updated, but not both. Did you forgot to run `carthage update` or `swift package update`?")
end

# Warn if podpec has been update but not Cartfile or Package.swift
if podspec_updated && (!cartfile_updated || !spm_updated)
  warn("The `podspec` was updated, but there were no changes in either the `Cartfile` nor `Package.swift`. Did you forget updating `Cartfile` or `Package.swift`?")
end

# Warn if cartfile has been update but not podspec or Package.swift
if cartfile_updated && (!podspec_updated || !spm_updated)
  warn("The `Cartfile` was updated, but there were no changes in either the `podspec` nor `Package.swift`. Did you forget updating `podspec` or `Package.swift`?")
end

# Warn if Package.swift has been update but not podspec or Cartfile
if spm_updated && (!podspec_updated || !cartfile_updated)
  warn("The `Package.swift` was updated, but there were no changes in either the `podspec` nor `Cartfile`. Did you forget updating `podspec` or `Cartfile`?")
end

# Warn when library files has been updated but not tests.
tests_updated = !git.modified_files.grep(/Tests/).empty?
if has_app_changes && !tests_updated
  warn("The library files were changed, but the tests remained unmodified. Consider updating or adding to the tests to match the library changes.")
end

# Run SwiftLint
swiftlint.lint_files

# Run prose
prose.check_spelling