# SwiftLint Configuration Standard (Swift 6.0+)
# Deeply aligned with swift/CODING.md rules, size caps, and safety invariants

# Strict execution: Treat all warnings as errors in CI
warning_threshold: 0

opt_in_rules:
  - force_unwrapping                      # Zero ! in production code paths
  - force_try                             # Zero try! in production code paths
  - fatal_error_message                   # Require descriptive message if fatalError is used
  - empty_count                           # Prefer isEmpty over count == 0
  - contains_over_first_not_nil           # Prefer contains over first != nil
  - first_where                           # Prefer first(where:) over filter().first
  - overridden_super_call                 # Ensure super is invoked on lifecycle overrides
  - modifier_order                        # Consistent access control order
  - multiline_parameters                  # Format multiline signatures cleanly
  - prefer_self_in_static_references     # Self-reference discipline
  - redundant_nil_coalescing              # Flag unnecessary ?? nil
  - unneeded_parentheses_in_closure_argument
  - vertical_whitespace_closing_braces

disabled_rules:
  - todo                                  # Managed via task tracking

# Metrics & Caps aligned with swift/CODING.md Section 5
line_length:
  warning: 100
  error: 120
  ignores_comments: true
  ignores_urls: true

function_body_length:
  warning: 50                             # Max 50 lines per method
  error: 60

type_body_length:
  warning: 150                            # Max 150 lines per struct / class / actor body
  error: 200

file_length:
  warning: 400                            # Max 400 lines per source file
  error: 500

cyclomatic_complexity:
  warning: 10                             # Cognitive complexity ceiling
  error: 15

function_parameter_count:
  warning: 3                              # Max 3 parameters (warns on 4+)
  error: 4

nesting:
  type_level:
    warning: 3
  statement_level:
    warning: 3                            # Max 3 indentation levels

included:
  - Sources
  - Tests

excluded:
  - .build
  - DerivedData