import { UniqueID } from "@repo/rdx-ddd";
import { Maybe, Result } from "@repo/rdx-utils";
import type { RequestHandler } from "express";
import type { Sequelize } from "sequelize";

import type { InventoryContext } from "./application/asset.repository";
import { AssetUseCases } from "./application/asset.use-cases";
import { AssetCatalogUseCases } from "./application/asset-catalog.use-cases";
import { AssetRelationshipUseCases } from "./application/asset-relationship.use-cases";
import { BrandUseCases } from "./application/brand.use-cases";
import { SupportUseCases } from "./application/support.use-cases";
import { WorkstationUseCases } from "./application/workstation.use-cases";
import { seedAssetCatalog } from "./domain/asset-catalog-seed";
import { registerAssetRoutes } from "./infrastructure/http/asset.routes";
import { registerAssetCatalogRoutes } from "./infrastructure/http/asset-catalog.routes";
import { registerRelationshipRoutes } from "./infrastructure/http/asset-relationship.routes";
import { registerBrandRoutes } from "./infrastructure/http/brand.routes";
import { registerSupportRoutes } from "./infrastructure/http/support.routes";
import { registerWorkstationRoutes } from "./infrastructure/http/workstation.routes";
import { migrateInventory } from "./infrastructure/persistence/asset.model";
import {
  CatalogModel,
  migrateAssetCatalog,
} from "./infrastructure/persistence/asset-catalog.model";
import { AssetCatalogPersistenceMapper } from "./infrastructure/persistence/asset-catalog-persistence.mapper";
import { AssetDashboardReader } from "./infrastructure/persistence/asset-dashboard-reader";
import { enforceAssetRelationalConstraints } from "./infrastructure/persistence/asset-relational-constraints";
import { initializeAssetInventorySchema } from "./infrastructure/persistence/asset-relational-schema";
import { migrateRelationships } from "./infrastructure/persistence/asset-relationship.model";
import { migrateBrands } from "./infrastructure/persistence/brand-migration";
import { SequelizeAssetRepository } from "./infrastructure/persistence/sequelize-asset.repository";
import { SequelizeAssetCatalogRepository } from "./infrastructure/persistence/sequelize-asset-catalog.repository";
import { SequelizeBrandRepository } from "./infrastructure/persistence/sequelize-brand.repository";
import { SequelizeSupportRepository } from "./infrastructure/persistence/sequelize-support.repository";
import { migrateSupport } from "./infrastructure/persistence/support-migration";
import { migrateWorkstations } from "./infrastructure/persistence/workstation.model";

export async function createAssetModule(database: Sequelize, authenticate: RequestHandler) {
  await migrateAssetCatalog(database);
  await CatalogModel.findOrCreate({
    where: { catalogKey: "global" },
    defaults: { id: UniqueID.generateNewID().toPrimitive(), catalogKey: "global" },
  });
  const repository = new SequelizeAssetCatalogRepository(
    database,
    new AssetCatalogPersistenceMapper()
  );
  const seeded = await repository.update(Maybe.none(), (catalog) =>
    Result.ok(seedAssetCatalog(catalog))
  );

  if (!seeded.isSuccess) {
    throw new Error("No se pudo inicializar el catálogo de activos.");
  }
  await migrateBrands(database);
  await migrateInventory(database);
  const brands = new BrandUseCases(new SequelizeBrandRepository(database));

  await migrateRelationships(database);
  await migrateWorkstations(database);
  await initializeAssetInventorySchema(database);
  await enforceAssetRelationalConstraints(database);
  await migrateSupport(database);
  const support = new SupportUseCases(new SequelizeSupportRepository(database));
  const assetRepository = new SequelizeAssetRepository(database);
  const inventory = new AssetUseCases(assetRepository);
  const workstations = new WorkstationUseCases(assetRepository);
  const relationships = new AssetRelationshipUseCases(assetRepository);
  const useCases = new AssetCatalogUseCases(repository);

  return {
    services: {
      dashboard: new AssetDashboardReader(database),
      inventory: {
        workstations: async (companyId: UniqueID) => {
          const result = await assetRepository.get(companyId);

          if (!result.isSuccess) {
            throw new Error("Puestos no disponibles.");
          }

          return result.data.workstations.map((item) => ({
            id: item.id,
            name: item.values.toPrimitive().name,
            active: item.values.toPrimitive().active,
          }));
        },
        list: async (companyId: UniqueID) => {
          const result = await assetRepository.get(companyId);

          if (!result.isSuccess) {
            throw new Error("Inventario no disponible.");
          }

          return inventoryAssignments(result.data);
        },
      },
    },
    register: (app: Parameters<typeof registerAssetCatalogRoutes>[0]) => {
      registerBrandRoutes(app, brands, authenticate);
      registerAssetCatalogRoutes(app, useCases, authenticate);
      registerAssetRoutes(app, inventory, authenticate);
      registerRelationshipRoutes(app, relationships, authenticate);
      registerWorkstationRoutes(app, workstations, authenticate);
      registerSupportRoutes(app, support, authenticate);
    },
  };
}

function inventoryAssignments(context: InventoryContext) {
  const peopleByAsset = new Map<string, Set<string>>();

  for (const workstation of context.workstations) {
    const values = workstation.values.toPrimitive();

    if (!(values.active && values.personId)) {
      continue;
    }
    for (const assetId of [...values.assetIds, ...values.sharedAssetIds]) {
      const people = peopleByAsset.get(assetId) ?? new Set<string>();

      people.add(values.personId);
      peopleByAsset.set(assetId, people);
    }
  }
  const assignments: {
    id: UniqueID;
    name: string;
    personId: string | null;
    available: boolean;
  }[] = [];

  for (const asset of context.assets) {
    const values = asset.values.toPrimitive();
    const people = peopleByAsset.get(asset.id.toPrimitive()) ?? new Set<string>();

    if (people.size) {
      for (const personId of people) {
        assignments.push({
          id: asset.id,
          name: values.name,
          personId,
          available: values.status !== "retired",
        });
      }
    } else {
      assignments.push({
        id: asset.id,
        name: values.name,
        personId: null,
        available: values.status !== "retired",
      });
    }
  }

  return assignments;
}