/**
 * @ai-summary Input validation for fuel logs API
 */

import { z } from 'zod';

export const createFuelLogSchema = z.object({
  vehicleId: z.string().uuid(),
  date: z.string().regex(/^\d{4}-\d{2}-\d{2}$/),
  odometer: z.number().int().positive(),
  gallons: z.number().positive(),
  pricePerGallon: z.number().positive(),
  totalCost: z.number().positive(),
  station: z.string().max(200).optional(),
  location: z.string().max(200).optional(),
  notes: z.string().max(1000).optional(),
});

export const updateFuelLogSchema = z.object({
  date: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
  odometer: z.number().int().positive().optional(),
  gallons: z.number().positive().optional(),
  pricePerGallon: z.number().positive().optional(),
  totalCost: z.number().positive().optional(),
  station: z.string().max(200).optional(),
  location: z.string().max(200).optional(),
  notes: z.string().max(1000).optional(),
}).refine(data => Object.keys(data).length > 0, {
  message: 'At least one field must be provided for update'
});

export function validateCreateFuelLog(data: unknown) {
  return createFuelLogSchema.safeParse(data);
}

export function validateUpdateFuelLog(data: unknown) {
  return updateFuelLogSchema.safeParse(data);
}