/**
 * Unified field type registry.
 * Used by backend (MCP, API validation) and frontend (form/table editors).
 * Add a type here once — it becomes available everywhere.
 */

export interface FieldTypeDef {
  id: string;
  label: string;
  iconName: string; // lucide icon name, resolved on the frontend
  supportsOptions: boolean;
  allowedIn: Array<"form" | "global" | "table" | "user">;
}

export const FIELD_TYPE_DEFINITIONS: FieldTypeDef[] = [
  { id: "text", label: "Текстовое поле", iconName: "Type", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "number", label: "Числовое поле", iconName: "Hash", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "date", label: "Дата", iconName: "Calendar", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "datetime", label: "Дата и время", iconName: "Clock", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "select", label: "Выпадающий список", iconName: "ChevronDown", supportsOptions: true, allowedIn: ["form", "global", "table", "user"] },
  { id: "checkbox", label: "Чекбокс", iconName: "CheckSquare", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "checklist", label: "Чек-лист", iconName: "ListChecks", supportsOptions: true, allowedIn: ["form", "global", "table", "user"] },
  { id: "toggle", label: "Переключатель", iconName: "ToggleLeft", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "button", label: "Кнопка", iconName: "MousePointer", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "user", label: "Пользователь/Роль", iconName: "Users", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "file", label: "Загрузка файлов", iconName: "Paperclip", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "textarea", label: "Многострочный текст", iconName: "AlignLeft", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "rich-text", label: "Богатый текстовый редактор", iconName: "FileText", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "history-number", label: "Числовое поле с историей", iconName: "History", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "table", label: "Справочник", iconName: "Table", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "task", label: "Связь с задачей", iconName: "Link2", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "company", label: "Организация (DaData)", iconName: "Building2", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "geo", label: "Адрес с координатами", iconName: "MapPin", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "formula", label: "Формула", iconName: "Calculator", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "contract-number", label: "Номер договора", iconName: "FileSignature", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "contact", label: "Контакт", iconName: "User", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
  { id: "document_template", label: "Шаблон документа", iconName: "FileText", supportsOptions: false, allowedIn: ["form", "global", "table", "user"] },
];

export const ALL_FIELD_TYPES = FIELD_TYPE_DEFINITIONS.map((t) => t.id);

export type GanttFieldRole = "start" | "end" | "milestone" | null;

export const GANTT_FIELD_ROLES: { value: GanttFieldRole; label: string }[] = [
  { value: "start", label: "Начало" },
  { value: "end", label: "Конец" },
  { value: "milestone", label: "Веха" },
];

export function isValidGanttFieldRole(value: unknown): value is GanttFieldRole {
  return value === null || value === "start" || value === "end" || value === "milestone";
}

export const FORM_FIELD_TYPES = FIELD_TYPE_DEFINITIONS.filter((t) => t.allowedIn.includes("form")).map((t) => t.id);
export const GLOBAL_FIELD_TYPES = FIELD_TYPE_DEFINITIONS.filter((t) => t.allowedIn.includes("global")).map((t) => t.id);
export const TABLE_FIELD_TYPES = FIELD_TYPE_DEFINITIONS.filter((t) => t.allowedIn.includes("table")).map((t) => t.id);
export const USER_FIELD_TYPES = FIELD_TYPE_DEFINITIONS.filter((t) => t.allowedIn.includes("user")).map((t) => t.id);

/** Quick lookup helpers */
export function getFieldTypeDef(id: string): FieldTypeDef | undefined {
  return FIELD_TYPE_DEFINITIONS.find((t) => t.id === id);
}

export function isValidFieldType(id: string, context: "form" | "global" | "table" | "user"): boolean {
  const def = getFieldTypeDef(id);
  return def ? def.allowedIn.includes(context) : false;
}