import { z } from "zod";

import { getHumanReadableLocationValue } from "@calcom/app-store/locations";
import { StringChangeSchema } from "../common/changeSchemas";
import type { DataRequirements } from "../service/EnrichmentDataStore";
import { AuditActionServiceHelper } from "./AuditActionServiceHelper";
import type {
  IAuditActionService,
  TranslationWithParams,
  GetDisplayTitleParams,
} from "./IAuditActionService";
import { getTranslation } from "@calcom/i18n/server";
/**
 * Location Changed Audit Action Service
 * Handles LOCATION_CHANGED action with per-action versioning
 */

// Module-level because it is passed to IAuditActionService type outside the class scope
const fieldsSchemaV1 = z.object({
  location: StringChangeSchema,
});

export class LocationChangedAuditActionService implements IAuditActionService {
  readonly VERSION = 1;
  public static readonly TYPE = "LOCATION_CHANGED" as const;
  private static dataSchemaV1 = z.object({
    version: z.literal(1),
    fields: fieldsSchemaV1,
  });
  private static fieldsSchemaV1 = fieldsSchemaV1;
  public static readonly latestFieldsSchema = fieldsSchemaV1;
  // Union of all versions
  public static readonly storedDataSchema = LocationChangedAuditActionService.dataSchemaV1;
  // Union of all versions
  public static readonly storedFieldsSchema = LocationChangedAuditActionService.fieldsSchemaV1;
  private helper: AuditActionServiceHelper<
    typeof LocationChangedAuditActionService.latestFieldsSchema,
    typeof LocationChangedAuditActionService.storedDataSchema
  >;

  constructor() {
    this.helper = new AuditActionServiceHelper({
      latestVersion: this.VERSION,
      latestFieldsSchema: LocationChangedAuditActionService.latestFieldsSchema,
      storedDataSchema: LocationChangedAuditActionService.storedDataSchema,
    });
  }

  getVersionedData(fields: unknown) {
    return this.helper.getVersionedData(fields);
  }

  parseStored(data: unknown) {
    return this.helper.parseStored(data);
  }

  getVersion(data: unknown): number {
    return this.helper.getVersion(data);
  }

  migrateToLatest(data: unknown) {
    // V1-only: validate and return as-is (no migration needed)
    const validated = fieldsSchemaV1.parse(data);
    return { isMigrated: false, latestData: validated };
  }

  getDataRequirements(): DataRequirements {
    return { userUuids: [] };
  }

  async getDisplayTitle({ storedData }: GetDisplayTitleParams): Promise<TranslationWithParams> {
    const { fields } = this.parseStored(storedData);
    // TODO: Ideally we want to translate the location label to the user's locale
    // We currently don't accept requesting user's translate fn here, fix it later.
    const t = await getTranslation("en", "common");

    const fromLocation = getHumanReadableLocationValue(fields.location.old, t);
    const toLocation = getHumanReadableLocationValue(fields.location.new, t);

    return {
      key: "booking_audit_action.location_changed_from_to",
      params: { fromLocation, toLocation },
    };
  }
}

export type LocationChangedAuditData = z.infer<typeof fieldsSchemaV1>;