.editorconfig

# EditorConfig is awesome: https://EditorConfig.org

# top-most EditorConfig file
root = true

# All files
[*]
charset = utf-8
insert_final_newline = true
trim_trailing_whitespace = true
end_of_line = lf

# Code files
[*.{cs,csx,razor}]
indent_style = space
indent_size = 4

# XML project files
[*.{csproj,vbproj,vcxproj,vcxproj.filters,proj,projitems,shproj}]
indent_style = space
indent_size = 2

# XML config files
[*.{props,targets,ruleset,config,nuspec,resx,vsixmanifest,vsct}]
indent_style = space
indent_size = 2

# JSON files
[*.json]
indent_style = space
indent_size = 2

# Markdown files
[*.md]
trim_trailing_whitespace = false

# Dotnet code style settings:
[*.{cs,vb}]

# Sort using and Import directives with System.* appearing first
dotnet_sort_system_directives_first = true
dotnet_separate_import_directive_groups = false

# Avoid "this." and "Me." if not necessary
dotnet_style_qualification_for_field = false:suggestion
dotnet_style_qualification_for_property = false:suggestion
dotnet_style_qualification_for_method = false:suggestion
dotnet_style_qualification_for_event = false:suggestion

# Use language keywords instead of framework type names for type references
dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
dotnet_style_predefined_type_for_member_access = true:suggestion

# Suggest more modern language features when available
dotnet_style_object_initializer = true:suggestion
dotnet_style_collection_initializer = true:suggestion
dotnet_style_coalesce_expression = true:suggestion
dotnet_style_null_propagation = true:suggestion
dotnet_style_explicit_tuple_names = true:suggestion

# Prefer inferred tuple element names and anonymous type member names
dotnet_style_prefer_inferred_tuple_names = true:suggestion
dotnet_style_prefer_inferred_anonymous_type_member_names = true:suggestion

# Prefer auto properties over properties with backing fields
dotnet_style_prefer_auto_properties = true:suggestion

# Prefer conditional expressions over if-else for assignments
dotnet_style_prefer_conditional_expression_over_assignment = true:silent
dotnet_style_prefer_conditional_expression_over_return = true:silent

# Prefer compound assignment expressions
dotnet_style_prefer_compound_assignment = true:suggestion

# Prefer simplified boolean expressions
dotnet_style_prefer_simplified_boolean_expressions = true:suggestion

# CSharp code style settings:
[*.cs]

# Prefer "var" everywhere
csharp_style_var_for_built_in_types = false:suggestion
csharp_style_var_when_type_is_apparent = true:suggestion
csharp_style_var_elsewhere = false:suggestion

# Prefer method-like constructs to have a block body
csharp_style_expression_bodied_methods = false:silent
csharp_style_expression_bodied_constructors = false:silent
csharp_style_expression_bodied_operators = false:silent

# Prefer property-like constructs to have an expression-body
csharp_style_expression_bodied_properties = true:silent
csharp_style_expression_bodied_indexers = true:silent
csharp_style_expression_bodied_accessors = true:silent

# Suggest more modern language features when available
csharp_style_pattern_matching_over_is_with_cast_check = true:suggestion
csharp_style_pattern_matching_over_as_with_null_check = true:suggestion
csharp_style_inlined_variable_declaration = true:suggestion
csharp_style_throw_expression = true:suggestion
csharp_style_conditional_delegate_call = true:suggestion

# Newline settings
csharp_new_line_before_open_brace = all
csharp_new_line_before_else = true
csharp_new_line_before_catch = true
csharp_new_line_before_finally = true
csharp_new_line_before_members_in_object_initializers = true
csharp_new_line_before_members_in_anonymous_types = true
csharp_new_line_between_query_expression_clauses = true

# Indentation preferences
csharp_indent_case_contents = true
csharp_indent_switch_labels = true
csharp_indent_labels = flush_left

# Space preferences
csharp_space_after_cast = false
csharp_space_after_keywords_in_control_flow_statements = true
csharp_space_between_method_call_parameter_list_parentheses = false
csharp_space_between_method_declaration_parameter_list_parentheses = false
csharp_space_between_parentheses = false
csharp_space_before_colon_in_inheritance_clause = true
csharp_space_after_colon_in_inheritance_clause = true
csharp_space_around_binary_operators = before_and_after
csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
csharp_space_between_method_call_name_and_opening_parenthesis = false
csharp_space_between_method_call_empty_parameter_list_parentheses = false

# Wrapping preferences
csharp_preserve_single_line_statements = true
csharp_preserve_single_line_blocks = true

# Using directive preferences
csharp_using_directive_placement = outside_namespace:warning

# Prefer simple using statement
csharp_prefer_simple_using_statement = true:suggestion

# Naming conventions

# Async methods should have "Async" suffix
dotnet_naming_rule.async_methods_end_in_async.severity = suggestion
dotnet_naming_rule.async_methods_end_in_async.symbols = any_async_methods
dotnet_naming_rule.async_methods_end_in_async.style = end_in_async

dotnet_naming_symbols.any_async_methods.applicable_kinds = method
dotnet_naming_symbols.any_async_methods.applicable_accessibilities = *
dotnet_naming_symbols.any_async_methods.required_modifiers = async

dotnet_naming_style.end_in_async.required_suffix = Async
dotnet_naming_style.end_in_async.capitalization = pascal_case

# Interfaces should be PascalCase and start with an 'I'
dotnet_naming_rule.interfaces_start_with_i.severity = warning
dotnet_naming_rule.interfaces_start_with_i.symbols = interfaces
dotnet_naming_rule.interfaces_start_with_i.style = start_with_i

dotnet_naming_symbols.interfaces.applicable_kinds = interface
dotnet_naming_symbols.interfaces.applicable_accessibilities = *

dotnet_naming_style.start_with_i.required_prefix = I
dotnet_naming_style.start_with_i.capitalization = pascal_case

# Classes, structs, enums, properties, methods, events should be PascalCase
dotnet_naming_rule.general_naming.severity = warning
dotnet_naming_rule.general_naming.symbols = general
dotnet_naming_rule.general_naming.style = pascal_case

dotnet_naming_symbols.general.applicable_kinds = class,struct,enum,property,method,event,namespace,delegate
dotnet_naming_symbols.general.applicable_accessibilities = *

dotnet_naming_style.pascal_case.capitalization = pascal_case

# Constant fields should be PascalCase
dotnet_naming_rule.constant_fields_should_be_pascal_case.severity = warning
dotnet_naming_rule.constant_fields_should_be_pascal_case.symbols = constant_fields
dotnet_naming_rule.constant_fields_should_be_pascal_case.style = pascal_case

dotnet_naming_symbols.constant_fields.applicable_kinds = field
dotnet_naming_symbols.constant_fields.required_modifiers = const

# Private fields should be camelCase and start with _
dotnet_naming_rule.private_fields_with_underscore.severity = warning
dotnet_naming_rule.private_fields_with_underscore.symbols = private_fields
dotnet_naming_rule.private_fields_with_underscore.style = prefix_underscore

dotnet_naming_symbols.private_fields.applicable_kinds = field
dotnet_naming_symbols.private_fields.applicable_accessibilities = private

dotnet_naming_style.prefix_underscore.required_prefix = _
dotnet_naming_style.prefix_underscore.capitalization = camel_case

# Local variables and parameters should be camelCase
dotnet_naming_rule.locals_should_be_camel_case.severity = warning
dotnet_naming_rule.locals_should_be_camel_case.symbols = locals_and_parameters
dotnet_naming_rule.locals_should_be_camel_case.style = camel_case

dotnet_naming_symbols.locals_and_parameters.applicable_kinds = parameter,local

dotnet_naming_style.camel_case.capitalization = camel_case

# Nullable reference types
dotnet_diagnostic.CS8618.severity = error  # Non-nullable field must contain a non-null value when exiting constructor
dotnet_diagnostic.CS8603.severity = warning  # Possible null reference return
dotnet_diagnostic.CS8604.severity = warning  # Possible null reference argument
dotnet_diagnostic.CS8625.severity = warning  # Cannot convert null literal to non-nullable reference type