import { createContext, DomainError } from "@tailor-platform/erp-kit/app";
import { createResolver, t } from "@tailor-platform/sdk";
import { getDB } from "@/generated/kysely-tailordb";
import { umModules } from "@/modules";

const AUTO_ASSIGNED_SCOPES = ["user-management:profile"];

export default createResolver({
  name: "createRole",
  operation: "mutation",
  input: {
    name: t.string().description("Role name"),
    description: t.string({ optional: true }).description("Role description"),
    permissions: t.string({ array: true }).description("Permission keys to assign"),
  },
  body: async (context) => {
    const ctx = createContext(context);
    const db = getDB("main-db");
    const allPermissions = [...new Set([...context.input.permissions, ...AUTO_ASSIGNED_SCOPES])];

    const result = await db
      .transaction()
      .execute(async (trx) => {
        const cmdResult = await umModules.commands.createRole(
          trx,
          {
            name: context.input.name,
            description: context.input.description ?? undefined,
            permissions: allPermissions,
          },
          ctx,
        );
        if (!cmdResult.ok) {
          switch (cmdResult.error.code) {
            case "USER_MANAGEMENT_ROLE_ALREADY_EXISTS":
              throw new DomainError(`A role with name "${context.input.name}" already exists`);
            case "USER_MANAGEMENT_MISSING_REQUIRED_FIELD":
              throw new DomainError("Role name is required");
            case "USER_MANAGEMENT_INVALID_PERMISSION":
              throw new DomainError(`Invalid permission format: ${cmdResult.error.message}`);
            case "UNAUTHENTICATED":
              throw new DomainError("Authentication is required");
            case "INSUFFICIENT_PERMISSION":
              throw new DomainError("You do not have permission to perform this action");
            default:
              throw cmdResult.error satisfies never;
          }
        }

        return {
          id: cmdResult.value.role.id,
          name: cmdResult.value.role.name,
          description: cmdResult.value.role.description ?? "",
        };
      })
      .catch((err: unknown) => {
        if (err instanceof DomainError) throw err;
        throw new Error("Failed to create the role", {
          cause: err,
        });
      });

    return result;
  },
  output: t
    .object({
      id: t.uuid().description("Role ID"),
      name: t.string().description("Role name"),
      description: t.string().description("Role description"),
    })
    .description("Created role"),
});