import React from 'react';

export enum Theme {
  Light = 'light',
  Dark = 'dark',
  System = 'system',
}

export interface Employee {
  id: string;
  name: string;
  initials: string;
  email: string;
  department?: string;
  role?: string;
  isOwner?: boolean; // Company owner/HR access
}

export interface Report {
  employeeId: string;
  department: string;
  role: string;
  roleAndOutput: {
    responsibilities: string;
    clarityOnRole: string;
    selfRatedOutput: string;
    recurringTasks: string;
  };
  insights: {
    personalityTraits: string;
    psychologicalIndicators: string[];
    selfAwareness: string;
    emotionalResponses: string;
    growthDesire: string;

    strengths?: string[];
    weaknesses?: string[];
    value?: number;
  };
  actionableItems?: { id: string; title: string; impact: 'High' | 'Medium' | 'Low'; effort: 'High' | 'Medium' | 'Low'; description: string; }[];
  roleFitCandidates?: { employeeId: string; roles: string[]; rationale: string; score: number; }[];
  potentialExits?: { employeeId: string; risk: 'Low' | 'Medium' | 'High'; reason: string; }[];
  traitWeighting?: { trait: string; weight: number; rationale?: string; }[];
  strengths: string[];
  weaknesses: {
    isCritical: boolean;
    description: string;
  }[];
  opportunities: {
    roleAdjustment: string;
    accountabilitySupport: string;
  };
  risks: string[];
  recommendation: {
    action: 'Keep' | 'Restructure' | 'Terminate';
    details: string[];
  };
  grading: {
    department: string;
    lead: string;
    support: string;
    grade: string;
    comment: string;
    scores: { subject: string; value: number; fullMark: number; }[];
  }[];
  suitabilityScore?: number;
  retentionRisk?: 'Low' | 'Medium' | 'High';
  costEffectiveness?: 'Underperforming' | 'Aligned' | 'High Value';
}

export interface Submission {
  employeeId: string;
  answers: {
    question: string;
    answer: string;
  }[];
}

export interface FaqItem {
  question: string;
  answer: string;
}

export interface NavItem {
  href: string;
  label: string;
  icon: (props: { className?: string }) => React.ReactNode;
}

export interface ChatMessage {
  id: string;
  role: 'user' | 'assistant';
  text: string;
  isLoading?: boolean;
}

export interface CompanyReport {
  id: string;
  createdAt: number;
  overview: {
    totalEmployees: number;
    departmentBreakdown: { department: string; count: number; }[];
    submissionRate: number; // percentage of employees who submitted
    lastUpdated: number;
    // Optional aggregate metrics
    averagePerformanceScore?: number;
    riskLevel?: 'Low' | 'Medium' | 'High';
  };
  // Personnel lifecycle
  personnelChanges: {
    newHires: { name: string; department: string; role: string; impact?: string }[];
    promotions: { name: string; fromRole: string; toRole: string; impact?: string }[];
    departures: { name: string; department: string; reason: string; impact?: string }[];
  };
  // Backward-compatible flattened list (optional)
  keyPersonnelChanges?: Array<{ employeeName: string; role: string; department: string; changeType: 'newHire' | 'promotion' | 'departure'; impact?: string }>;
  // Hiring / talent gaps
  immediateHiringNeeds: {
    department: string;
    role: string;
    priority: 'High' | 'Medium' | 'Low';
    reasoning: string;
    urgency?: 'high' | 'medium' | 'low'; // UI alias
  }[];
  // Operating plan (dual naming for UI compatibility)
  operatingPlan: {
    nextQuarterGoals: string[];
    keyInitiatives: string[];
    resourceNeeds: string[];
    riskMitigation: string[];
  };
  forwardOperatingPlan?: { // deprecated; kept for existing calls until phased out
    quarterlyGoals: string[];
    resourceNeeds: string[];
    riskMitigation: string[];
  };
  // Strengths / risks
  organizationalStrengths: Array<{ icon?: string; area: string; description: string }>;
  organizationalRisks: string[];
  organizationalImpactSummary?: string;
  // Grading: array + map for UI
  gradingBreakdown: {
    category: string;
    value: number; // 0-100
    rationale?: string;
  }[];
  gradingOverview?: Record<string, number>; // legacy (0-5 scale expected by old UI)
  executiveSummary: string;
}

export interface CompanyReportSummary {
  id: string;
  createdAt: number;
  summary: string; // For backwards compatibility
}