import { type ModuleParams, buildTransactionManager } from "@erp/core/api";

import {
  type CreateSupplierUseCase,
  type GetSupplierByIdUseCase,
  type ListSuppliersUseCase,
  type UpdateSupplierUseCase,
  buildCreateSupplierUseCase,
  buildGetSupplierByIdUseCase,
  buildListSuppliersUseCase,
  buildSupplierUpdater,
  buildUpdateSupplierUseCase,
  buildSupplierCreator,
  buildSupplierFinder,
  buildSupplierInputMappers,
  buildSupplierSnapshotBuilders,
} from "../../application";

import { buildSupplierPersistenceMappers } from "./supplier-persistence-mappers.di";
import { buildSupplierRepository } from "./supplier-repositories.di";

export type SuppliersInternalDeps = {
  useCases: {
    listSuppliers: () => ListSuppliersUseCase;
    getSupplierById: () => GetSupplierByIdUseCase;
    createSupplier: () => CreateSupplierUseCase;
    updateSupplier: () => UpdateSupplierUseCase;
  };
};

export function buildSuppliersDependencies(params: ModuleParams): SuppliersInternalDeps {
  const { database, transactionContext } = params;

  // Infrastructure
  const transactionManager = buildTransactionManager(database, transactionContext);
  const persistenceMappers = buildSupplierPersistenceMappers();

  const repository = buildSupplierRepository({ database, mappers: persistenceMappers });

  // Application helpers
  const inputMappers = buildSupplierInputMappers();
  const finder = buildSupplierFinder({ repository });
  const creator = buildSupplierCreator({ repository });
  const updater = buildSupplierUpdater({ repository });

  const snapshotBuilders = buildSupplierSnapshotBuilders();

  // Internal use cases (factories)
  return {
    useCases: {
      listSuppliers: () =>
        buildListSuppliersUseCase({
          finder,
          summarySnapshotBuilder: snapshotBuilders.summary,
          transactionManager,
        }),

      getSupplierById: () =>
        buildGetSupplierByIdUseCase({
          finder,
          fullSnapshotBuilder: snapshotBuilders.full,
          transactionManager,
        }),

      createSupplier: () =>
        buildCreateSupplierUseCase({
          creator,
          dtoMapper: inputMappers.createInputMapper,
          fullSnapshotBuilder: snapshotBuilders.full,
          transactionManager,
        }),

      updateSupplier: () =>
        buildUpdateSupplierUseCase({
          finder,
          updater,
          dtoMapper: inputMappers.updateInputMapper,
          fullSnapshotBuilder: snapshotBuilders.full,
          transactionManager,
        }),
    },
  };
}