import type { EmploymentStatus } from "./supabase/types";

const AVATAR_PALETTE = [
  "#d6046e",
  "#00666d",
  "#5c2e91",
  "#835b00",
  "#0e700e",
  "#b0035a",
  "#2b6cb0",
  "#a30354",
];

// Stable per-employee avatar color when employees.avatar_color isn't set.
export function avatarColorFor(seed: string): string {
  let hash = 0;
  for (let i = 0; i < seed.length; i++) {
    hash = (hash << 5) - hash + seed.charCodeAt(i);
    hash |= 0;
  }
  return AVATAR_PALETTE[Math.abs(hash) % AVATAR_PALETTE.length];
}

export const STATUS_STYLES: Record<EmploymentStatus, string> = {
  Aktiv: "bg-success-bg text-success-text",
  Karenz: "bg-warning-bg text-warning-text",
  Geplant: "bg-brand-100 text-brand-700",
  Ausgetreten: "bg-danger-bg text-danger-text",
};

type ColorCategory = "success" | "danger" | "warning" | "info" | "purple" | "brand";

const CATEGORY_STYLES: Record<ColorCategory, string> = {
  success: "bg-success-bg text-success-text",
  danger: "bg-danger-bg text-danger-text",
  warning: "bg-warning-bg text-warning-text",
  info: "bg-info-bg text-info-text",
  purple: "bg-purple-bg text-purple-text",
  brand: "bg-brand-100 text-brand-700",
};

// Audit-log / activity-feed action -> badge color, per the action list in
// supabase/schema.sql's audit_log comment.
const ACTION_CATEGORY: Record<string, ColorCategory> = {
  Neueinstellung: "success",
  Wiedereinstellung: "success",
  Rückkehr: "success",
  Austritt: "danger",
  Versetzung: "info",
  Ausschreibung: "info",
  "Interne Besetzung": "info",
  Beförderung: "purple",
  Reorganisation: "purple",
  "Reorganisation rückgängig": "purple",
  Karenz: "warning",
  Vertragsänderung: "warning",
  Stammdatenänderung: "warning",
  Gehaltsanpassung: "warning",
};

export function actionBadgeStyle(action: string): string {
  return CATEGORY_STYLES[ACTION_CATEGORY[action] ?? "brand"];
}