import { z } from 'zod';
import {
  createNamedBackendEntitySchema,
  idSchema,
  latitudeSchema,
  longitudeSchema,
  nameSchema,
  nonNegativeNumberSchema,
  positiveNumberSchema,
} from '@/schemas/common';

/**
 * Backend-aligned Site schema
 * Matches the Go backend domain.Site struct
 *
 * Sites belong to Organizations (not just Businesses)
 * Organizations can be commercial, governmental, cultural, etc.
 *
 * Uses Zod v4's composition features for DRY code
 */
export const backendSiteSchema = createNamedBackendEntitySchema({
  // Location
  Latitude: latitudeSchema,
  Longitude: longitudeSchema,

  // Site characteristics
  SiteType: z.string().optional().describe('Type of site'),
  FloorAreaM2: nonNegativeNumberSchema.optional().describe('Floor area in square meters'),
  Ownership: z.string().optional().describe('Ownership type'),

  // Ownership and operations
  OwnerOrganizationID: idSchema.describe('Owner organization ID'),

  // Site facilities and features
  AvailableUtilities: z.array(z.string()).optional().describe('Available utilities'),
  ParkingSpaces: nonNegativeNumberSchema.optional().describe('Number of parking spaces'),
  LoadingDocks: nonNegativeNumberSchema.optional().describe('Number of loading docks'),
  CraneCapacityTonnes: nonNegativeNumberSchema.optional().describe('Crane capacity in tonnes'),
  EnergyRating: z.string().optional().describe('Energy rating'),

  // Environmental
  WasteManagement: z.array(z.string()).optional().describe('Waste management features'),
  EnvironmentalImpact: z.string().optional().describe('Environmental impact'),

  // Historical/cultural building fields
  YearBuilt: z.string().optional().describe('Year built'),
  BuilderOwner: z.string().optional().describe('Builder/owner'),
  Architect: z.string().optional().describe('Architect'),
  OriginalPurpose: z.string().optional().describe('Original purpose'),
  CurrentUse: z.string().optional().describe('Current use'),
  Style: z.string().optional().describe('Architectural style'),
  Materials: z.string().optional().describe('Building materials'),
  Storeys: nonNegativeNumberSchema.optional().describe('Number of storeys'),
  HeritageStatus: z.string().optional().describe('Heritage status'),

  // Metadata
  Notes: z.string().optional().describe('Additional notes'),
  Sources: z.any().optional().describe('Data sources'),

  // Timestamps
  CreatedAt: z.string().optional().describe('Creation timestamp'),
  UpdatedAt: z.string().optional().describe('Last update timestamp'),

  // Relationships (populated via associations)
  Addresses: z.any().optional().describe('Associated addresses'),
  OwnerOrganization: z.any().optional().describe('Owner organization details'),
  OperatingOrganizations: z.any().optional().describe('Operating organizations'),
  ResourceFlows: z.any().optional().describe('Resource flows'),
  SharedAssets: z.any().optional().describe('Shared assets'),
});

export type BackendSite = z.infer<typeof backendSiteSchema>;

/**
 * Request schema for creating a site
 * Uses Zod v4's composition for consistency
 */
export const createSiteRequestSchema = z.object({
  name: nameSchema,
  address: z.string().optional().describe('Site address'),
  latitude: latitudeSchema,
  longitude: longitudeSchema,
  site_type: z.string().optional().describe('Type of site'),
  floor_area_m2: nonNegativeNumberSchema.optional().describe('Floor area in square meters'),
  owner_organization_id: idSchema.describe('Owner organization ID'),
});

export type CreateSiteRequest = z.infer<typeof createSiteRequestSchema>;

/**
 * Query parameters for nearby sites
 * Uses Zod v4's coerce for automatic type conversion
 */
export const nearbySitesQuerySchema = z.object({
  lat: z.coerce.number().pipe(latitudeSchema),
  lng: z.coerce.number().pipe(longitudeSchema),
  radius: z.coerce.number().pipe(positiveNumberSchema).optional(),
});

export type NearbySitesQuery = z.infer<typeof nearbySitesQuerySchema>;