import { z } from 'zod';

const CATEGORIES = [
  'moradia',
  'alimentação',
  'transporte',
  'saúde',
  'educação',
  'lazer',
  'serviços',
  'outros',
] as const;

export const categoryEnum = z.enum(CATEGORIES);
export const typeEnum = z.enum(['expense', 'income']);

export const createRecurringExpenseSchema = z.object({
  name: z.string().min(1, 'Nome é obrigatório').max(100),
  amount: z.number().positive('Valor deve ser positivo'),
  category: categoryEnum.default('outros'),
  type: typeEnum.default('expense'),
  due_day: z.number().int().min(1).max(31).nullable().optional(),
  is_active: z.boolean().default(true),
  starts_at: z.string().regex(/^\d{4}-\d{2}-\d{2}$/, 'Formato: YYYY-MM-DD').optional(),
  ends_at: z.string().regex(/^\d{4}-\d{2}-\d{2}$/, 'Formato: YYYY-MM-DD').nullable().optional(),
});

export const updateRecurringExpenseSchema = z.object({
  name: z.string().min(1).max(100).optional(),
  amount: z.number().positive().optional(),
  category: categoryEnum.optional(),
  type: typeEnum.optional(),
  due_day: z.number().int().min(1).max(31).nullable().optional(),
  is_active: z.boolean().optional(),
  starts_at: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
  ends_at: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).nullable().optional(),
});

export const recurringExpenseParamsSchema = z.object({
  userId: z.coerce.number().int().positive(),
  id: z.coerce.number().int().positive(),
});

export const recurringExpenseUserParamsSchema = z.object({
  userId: z.coerce.number().int().positive(),
});

export type CreateRecurringExpenseInput = z.infer<typeof createRecurringExpenseSchema>;
export type UpdateRecurringExpenseInput = z.infer<typeof updateRecurringExpenseSchema>;