// src/schemas/index.ts
// Zod schemas derived programmatically from the Backend Schema Registry.
// DO NOT hand-write z.object() calls with hardcoded field names — all shapes come from the registry.
// Adding a field to BACKEND_REGISTRY automatically adds it to validation.
// BACKEND_SCHEMAS is auto-generated from registry keys — no manual per-backend calls needed.

import { z } from 'zod';
import { BACKEND_REGISTRY, BackendType } from './registry';

function buildZodSchema(backendType: BackendType): z.ZodObject<Record<string, z.ZodTypeAny>> {
  const fields = BACKEND_REGISTRY[backendType].fields;
  const shape: Record<string, z.ZodTypeAny> = {};
  for (const field of fields) {
    let schema: z.ZodTypeAny = field.required
      ? z.string().min(1, `${field.label} is required`)
      : z.string();

    if ('validate' in field && field.validate) {
      schema = (schema as z.ZodString).regex(field.validate.regex, field.validate.message);
    }

    if (!field.required) {
      schema = (schema as z.ZodString).optional();
    }

    shape[field.key] = schema;
  }
  return z.object(shape);
}

// Auto-generated from registry keys — expands automatically when BACKEND_REGISTRY grows.
// No manual buildZodSchema() call needed per new backend.
export const BACKEND_SCHEMAS = Object.fromEntries(
  (Object.keys(BACKEND_REGISTRY) as BackendType[]).map(t => [t, buildZodSchema(t)])
) as Record<BackendType, ReturnType<typeof buildZodSchema>>;