// Domain vocabularies shared by the server (database enums, validation) and the web app.

/** Ordered from least to most privileged. */
export const roles = ['reporter', 'supervisor', 'safety_manager', 'admin'] as const
export type Role = (typeof roles)[number]

export function hasRole(role: Role, minimum: Role): boolean {
  return roles.indexOf(role) >= roles.indexOf(minimum)
}

export const incidentTypes = ['near_miss', 'hazard', 'injury', 'illness', 'property_damage', 'environmental'] as const
export type IncidentType = (typeof incidentTypes)[number]

export const severities = ['low', 'medium', 'high', 'critical'] as const
export type Severity = (typeof severities)[number]

/** Workflow: Reported → Triage → Investigation → Corrective actions → Verification → Closed. */
export const incidentStatuses = ['reported', 'triage', 'investigation', 'actions', 'verification', 'closed'] as const
export type IncidentStatus = (typeof incidentStatuses)[number]

export const areaKinds = ['building', 'area', 'line', 'other'] as const
export type AreaKind = (typeof areaKinds)[number]

export const employmentTypes = ['employee', 'temporary', 'contractor', 'visitor'] as const

export const treatmentLevels = ['none', 'first_aid', 'medical_treatment', 'hospitalized', 'fatality'] as const

export const rcaMethods = ['five_whys', 'fishbone', 'other'] as const

/** Fishbone (6M) categories. */
export const rootCauseCategories = ['people', 'process', 'equipment', 'materials', 'environment', 'management'] as const

export const actionKinds = ['corrective', 'preventive'] as const

export const actionStatuses = ['open', 'in_progress', 'done', 'verified', 'cancelled'] as const

/** Form 300 column M: injury or illness type. */
export const oshaCaseTypes = ['injury', 'skin_disorder', 'respiratory', 'poisoning', 'hearing_loss', 'other_illness'] as const
export type OshaCaseType = (typeof oshaCaseTypes)[number]

/** Form 300 columns G–J, most serious first. */
export const oshaOutcomes = ['death', 'days_away', 'restricted', 'other'] as const
export type OshaOutcome = (typeof oshaOutcomes)[number]

/** Cases recordable under 1904.8–1904.11 regardless of the general criteria. */
export const oshaSpecialCases = ['none', 'needlestick', 'medical_removal', 'hearing_loss', 'tuberculosis'] as const
export type OshaSpecialCase = (typeof oshaSpecialCases)[number]