import { UniqueID } from "@repo/rdx-ddd";
import { Result } from "@repo/rdx-utils";

import { Resource } from "../domain/resource.aggregate";
import { ResourceCatalogError } from "../domain/resource-definition";
import type { ResourceInput } from "../domain/resource-values";
import { ResourceValues } from "../domain/value-objects/resource-values.vo";

import type { IResourceRepository } from "./resource.repository";
import { mapResourceInput } from "./resource-input.mapper";

export class ResourceUseCases {
  constructor(private readonly repository: IResourceRepository) {}

  remove(companyId: string, id: string) {
    const company = UniqueID.create(companyId);
    const identity = UniqueID.create(id);

    if (!(company.isSuccess && identity.isSuccess)) {
      return Promise.resolve(Result.fail(new ResourceCatalogError("INVALID_REQUEST")));
    }

    return this.repository.remove(company.data, identity.data);
  }

  setActive(companyId: string, id: string, active: boolean, actorId: string) {
    const company = UniqueID.create(companyId);
    const identity = UniqueID.create(id);
    const actor = UniqueID.create(actorId);

    if (!(company.isSuccess && identity.isSuccess && actor.isSuccess)) {
      return Promise.resolve(Result.fail(new ResourceCatalogError("INVALID_REQUEST")));
    }

    return this.repository.save(company.data, (context) => {
      const previous = context.resources.find((resource) => resource.id.equals(identity.data));

      if (!previous) {
        return Result.fail(new ResourceCatalogError("RESOURCE_NOT_FOUND"));
      }
      const values = ResourceValues.create(
        { ...previous.values.toPrimitive(), active },
        previous.specification
      );

      if (!values.isSuccess) {
        return Result.fail(values.error);
      }

      return previous.update(values.data, actor.data, new Date().toISOString());
    });
  }

  get(companyId: string) {
    const company = UniqueID.create(companyId);

    if (!company.isSuccess) {
      return Promise.resolve(Result.fail(new ResourceCatalogError("INVALID_REQUEST")));
    }

    return this.repository.get(company.data);
  }

  save(companyId: string, id: string | undefined, input: ResourceInput, actorId: string) {
    const company = UniqueID.create(companyId);
    const actor = UniqueID.create(actorId);
    const identity = id ? UniqueID.create(id) : undefined;

    if (!(company.isSuccess && actor.isSuccess) || (identity && !identity.isSuccess)) {
      return Promise.resolve(Result.fail(new ResourceCatalogError("INVALID_REQUEST")));
    }

    return this.repository.save(
      company.data,
      (context) => {
        const previous = identity?.isSuccess
          ? context.resources.find((resource) => resource.id.equals(identity.data))
          : undefined;

        if (id && !previous) {
          return Result.fail(new ResourceCatalogError("RESOURCE_NOT_FOUND"));
        }
        const mapped = mapResourceInput(input, company.data, context, previous);

        if (!mapped.isSuccess) {
          return Result.fail(mapped.error);
        }
        const current = mapped.data.values.toPrimitive();

        if (
          current.integration?.kind === "mailbox" &&
          context.resources.some((item) => {
            const old = item.values.toPrimitive();

            return (
              !item.id.equals(previous?.id) &&
              old.integration?.kind === "mailbox" &&
              old.characteristics[old.integration.addressFieldId] ===
                current.characteristics[
                  current.integration?.kind === "mailbox" ? current.integration.addressFieldId : ""
                ]
            );
          })
        ) {
          return Result.fail(new ResourceCatalogError("NAME_EXISTS"));
        }
        if (
          context.resources.some(
            (item) =>
              !item.id.equals(previous?.id) &&
              item.values.toPrimitive().templateId ===
                mapped.data.values.toPrimitive().templateId &&
              sameAccessContext(item.values.toPrimitive().integration, current.integration) &&
              item.values.name.toPrimitive().toLocaleLowerCase("es") ===
                mapped.data.values.name.toPrimitive().toLocaleLowerCase("es")
          )
        ) {
          return Result.fail(new ResourceCatalogError("NAME_EXISTS"));
        }
        const now = new Date().toISOString();

        return previous
          ? previous.update(mapped.data.values, actor.data, now)
          : Resource.create(
              company.data,
              mapped.data.specification,
              mapped.data.values,
              actor.data,
              now
            );
      },
      id ? undefined : { templateId: input.templateId, actorId: actor.data }
    );
  }
}

function sameAccessContext(
  first: ResourceInput["integration"],
  second: ResourceInput["integration"]
) {
  if (first?.kind !== "access" || second?.kind !== "access") {
    return true;
  }

  return (
    first.resourceTypeId === second.resourceTypeId &&
    first.systemId === second.systemId &&
    first.environmentId === second.environmentId
  );
}