package errors

// ErrorCode — тип для кода ошибки.
type ErrorCode string

const (
	// General Errors
	ErrEmptyFile  ErrorCode = "FileIsEmpty"     // The file is empty or missing
	ErrYamlSyntax ErrorCode = "YAMLSyntaxError" // YAML syntax error

	// Job-related Errors
	ErrJobNameBlank        ErrorCode = "JobNameBlank"        // The job name is blank
	ErrJobNameTooLong      ErrorCode = "JobNameTooLong"      // The job name exceeds the maximum length
	ErrMissingScript       ErrorCode = "MissingScript"       // The required field script (or run) is missing
	ErrBothScriptAndRun    ErrorCode = "BothScriptAndRun"    // Both script and run are specified simultaneously
	ErrJobStageNotExist    ErrorCode = "JobStageNotExist"    // The specified stage does not exist in the allowed list
	ErrUndefinedDependency ErrorCode = "UndefinedDependency" // A dependency is not defined among the jobs
	ErrInvalidStageOrder   ErrorCode = "InvalidStageOrder"   // A dependency has a stage that occurs later than the job's stage
	ErrDuplicateNeeds      ErrorCode = "DuplicateNeeds"      // Duplicate entries found in needs
	ErrUndefinedNeed       ErrorCode = "UndefinedNeed"       // A need refers to a non-existent job
	ErrNeedNameTooLong     ErrorCode = "NeedNameTooLong"     // The need name exceeds the allowed length
	ErrNoVisibleJob        ErrorCode = "NoVisibleJob"        // There are no visible jobs
	ErrMissingJobs         ErrorCode = "MissingJobs"         // No jobs defined
	ErrArtifactsPathsBlank ErrorCode = "ArtifactsPathsBlank" // The artifacts paths block is missing or empty
	ErrUnknownRootKey      ErrorCode = "UnknownRootKey"      // An unknown key was found at the root level
	ErrInvalidWhen         ErrorCode = "InvalidWhen"         // The value of 'when' is invalid
	ErrInvalidOnly         ErrorCode = "InvalidOnly"         // The value of 'only' is invalid
	ErrUnknownKey          ErrorCode = "UnknownKey"          // An unknown key was found
	ErrMissingStage        ErrorCode = "MissingStage"        // The stage is missing
	ErrInvalidChanges      ErrorCode = "InvalidChanges"      // The changes configuration is invalid
	ErrInvalidRulesFormat  ErrorCode = "InvalidRulesFormat"  // The rules format is invalid

	// Changes-related Errors
	ErrChangesNotArrayOfStrings ErrorCode = "ChangesNotArrayOfStrings" // Changes config should be an array of strings
	ErrChangesInvalidType       ErrorCode = "ChangesInvalidType"       // Changes config is of an invalid type
	ErrChangesTooManyEntries    ErrorCode = "ChangesTooManyEntries"    // Changes config has too many entries (maximum 50)
	ErrChangesMissingPaths      ErrorCode = "ChangesMissingPaths"      // The changes config hash must contain the key 'paths'

	// Paths-related Errors
	ErrPathsNotArrayOfStrings ErrorCode = "PathsNotArrayOfStrings" // Paths config should be an array of strings

	// Job Delayed Parameters
	ErrStartInMissing     ErrorCode = "StartInMissing"     // For delayed jobs, start_in is missing
	ErrStartInInvalid     ErrorCode = "StartInInvalid"     // start_in is not a valid duration
	ErrStartInTooLong     ErrorCode = "StartInTooLong"     // start_in exceeds the allowed limit
	ErrStartInMustBeBlank ErrorCode = "StartInMustBeBlank" // For non-delayed jobs, start_in must be blank

	// Dependencies / Needs Consistency
	ErrDependencyNotInNeeds ErrorCode = "DependencyNotInNeeds" // A dependency is not included in needs

	// Rules Validation
	ErrRulesOnlyExcept         ErrorCode = "RulesOnlyExcept"         // Only and except cannot be used with rules
	ErrRulesOnly               ErrorCode = "RulesOnly"               // Only cannot be used with rules
	ErrRulesExcept             ErrorCode = "RulesExcept"             // Except cannot be used with rules
	ErrInvalidExpressionSyntax ErrorCode = "InvalidExpressionSyntax" // The expression syntax is invalid
	ErrUnknownRulesKey         ErrorCode = "UnknownRulesKey"         // An unknown key was found in rules

	// Other Job-related Errors
	ErrBeforeScriptInvalid ErrorCode = "BeforeScriptInvalid" // The before_script configuration is invalid
	ErrServiceInvalid      ErrorCode = "ServiceInvalid"      // The service configuration is invalid
	ErrStageInvalid        ErrorCode = "StageInvalid"        // The stage configuration is invalid
	ErrVariableInvalid     ErrorCode = "VariableInvalid"     // The variable is invalid
	ErrVariableNameTooLong ErrorCode = "VariableNameTooLong" // The variable name exceeds the maximum length
	ErrInvalidStagesOrder  ErrorCode = "InvalidStagesOrder"  // The stage order is invalid
	ErrVariablesInvalid    ErrorCode = "VariablesInvalid"    // The variables configuration is invalid
	ErrVariablesInvalidKey ErrorCode = "VariablesInvalidKey" // The variable uses invalid keys

	// Additional Errors
	ErrCyclicDependency    ErrorCode = "CyclicDependency"    // A cyclic dependency was detected
	ErrBooleanValue        ErrorCode = "BooleanValue"        // The value must be boolean
	ErrIncludeRulesInvalid ErrorCode = "IncludeRulesInvalid" // The 'exists' or 'changes' value is not a string or an array of strings

	// Style Note (Informational/Note)
	ErrMissingFinalNewline ErrorCode = "MissingFinalNewline" // The file is missing a final empty newline
)

// ErrorSeverity maps each error code to a severity level.
var ErrorSeverity = map[ErrorCode]SeverityLevel{
	// Critical errors
	ErrEmptyFile:                Critical,
	ErrYamlSyntax:               Critical,
	ErrMissingJobs:              Critical,
	ErrJobNameBlank:             Critical,
	ErrMissingScript:            Critical,
	ErrBothScriptAndRun:         Critical,
	ErrMissingStage:             Critical,
	ErrJobStageNotExist:         Critical,
	ErrUndefinedDependency:      Critical,
	ErrInvalidStageOrder:        Critical,
	ErrUndefinedNeed:            Critical,
	ErrCyclicDependency:         Critical,
	ErrStartInMissing:           Critical,
	ErrStartInInvalid:           Critical,
	ErrStartInTooLong:           Critical,
	ErrStartInMustBeBlank:       Critical,
	ErrVariableInvalid:          Critical,
	ErrVariablesInvalid:         Critical,
	ErrVariablesInvalidKey:      Critical,
	ErrServiceInvalid:           Critical,
	ErrBeforeScriptInvalid:      Critical,
	ErrChangesNotArrayOfStrings: Critical,
	ErrChangesInvalidType:       Critical,
	ErrChangesTooManyEntries:    Critical,
	ErrChangesMissingPaths:      Critical,
	ErrPathsNotArrayOfStrings:   Critical,

	// Warnings
	ErrDuplicateNeeds:          Warning,
	ErrNoVisibleJob:            Warning,
	ErrUnknownRootKey:          Warning,
	ErrUnknownKey:              Warning,
	ErrInvalidWhen:             Warning,
	ErrInvalidOnly:             Warning,
	ErrInvalidRulesFormat:      Warning,
	ErrRulesOnlyExcept:         Warning,
	ErrRulesOnly:               Warning,
	ErrRulesExcept:             Warning,
	ErrInvalidExpressionSyntax: Warning,
	ErrUnknownRulesKey:         Warning,

	// Notes (if needed, add informational codes here)
	ErrJobNameTooLong:      Note,
	ErrVariableNameTooLong: Note,
	ErrNeedNameTooLong:     Note,
	ErrMissingFinalNewline: Note,
}