import { z } from "zod";
import { v4 as uuidv4 } from "uuid";
import type { Tasker } from "@calcom/features/tasker/tasker";
import { safeStringify } from "@calcom/lib/safeStringify";
import type { ISimpleLogger } from "@calcom/features/di/shared/services/logger.service";

import type { BookingAuditAction } from "../types/bookingAuditTask";
import type { ActionSource } from "../types/actionSource";
import type { PiiFreeActor, Actor, BookingAuditContext } from "../dto/types";
import { makeActorById, buildActorEmail } from "../makeActor";
import type { IAuditActorRepository } from "../repository/IAuditActorRepository";
import { AcceptedAuditActionService } from "../actions/AcceptedAuditActionService";
import { AttendeeAddedAuditActionService } from "../actions/AttendeeAddedAuditActionService";
import { AttendeeRemovedAuditActionService } from "../actions/AttendeeRemovedAuditActionService";
import { CancelledAuditActionService } from "../actions/CancelledAuditActionService";
import { CreatedAuditActionService } from "../actions/CreatedAuditActionService";
import { LocationChangedAuditActionService } from "../actions/LocationChangedAuditActionService";
import { NoShowUpdatedAuditActionService } from "../actions/NoShowUpdatedAuditActionService";
import { ReassignmentAuditActionService } from "../actions/ReassignmentAuditActionService";
import { RejectedAuditActionService } from "../actions/RejectedAuditActionService";
import { RescheduleRequestedAuditActionService } from "../actions/RescheduleRequestedAuditActionService";
import { RescheduledAuditActionService } from "../actions/RescheduledAuditActionService";
import { SeatBookedAuditActionService } from "../actions/SeatBookedAuditActionService";
import { SeatRescheduledAuditActionService } from "../actions/SeatRescheduledAuditActionService";
import type { BookingAuditProducerService } from "./BookingAuditProducerService.interface";

interface BookingAuditTaskerProducerServiceDeps {
  tasker: Tasker;
  log: ISimpleLogger;
  auditActorRepository: IAuditActorRepository;
}

/**
 * BookingAuditTaskerProducerService - Tasker-based implementation of BookingAuditProducerService
 *
 * Producer that uses Tasker for local/background job processing.
 * Task processing is handled by BookingAuditTaskConsumer.
 *
 * For future migration to trigger.dev, create BookingAuditTriggerProducerService
 * that implements the same BookingAuditProducerService interface.
 */
export class BookingAuditTaskerProducerService implements BookingAuditProducerService {
  private readonly tasker: Tasker;
  private readonly log: BookingAuditTaskerProducerServiceDeps["log"];
  private readonly auditActorRepository: IAuditActorRepository;

  constructor(private readonly deps: BookingAuditTaskerProducerServiceDeps) {
    this.tasker = deps.tasker;
    this.log = deps.log;
    this.auditActorRepository = deps.auditActorRepository;
  }

  private async getPIIFreeBookingAuditActor(params: { actor: Actor }): Promise<PiiFreeActor> {
    const { actor } = params;

    if (actor.identifiedBy === "user" || actor.identifiedBy === "attendee" || actor.identifiedBy === "id") {
      return actor;
    }

    if (actor.identifiedBy === "app") {
      const piiFreeActor = await this.auditActorRepository.createIfNotExistsAppActor({
        credentialId: actor.credentialId,
      });
      return makeActorById(piiFreeActor.id);
    }

    if (actor.identifiedBy === "appSlug") {
      const email = buildActorEmail({ identifier: actor.appSlug, actorType: "app" });
      const piiFreeActor = await this.auditActorRepository.createIfNotExistsAppActor({
        email,
        name: actor.name,
      });
      return makeActorById(piiFreeActor.id);
    }

    // Must be guest actor at this point
    const piiFreeActor = await this.auditActorRepository.createIfNotExistsGuestActor({
      email: actor.email,
      name: actor.name ?? null,
      phone: null,
    });
    return makeActorById(piiFreeActor.id);
  }

  /**
   * Internal helper to queue audit task to Tasker
   * @param params.action - Must be a valid BookingAuditAction value (TYPE from action services are string-typed)
   * @param params.operationId - Optional operation ID for correlating bulk operations. If null, will be auto-generated.
   * @param params.isBookingAuditEnabled - Flag indicating if booking audit is enabled for the organization.
   *        When false, skips queueing.
   */
  private async queueTask(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    action: string;
    source: ActionSource;
    operationId?: string | null;
    data: unknown;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    // Skip queueing for non-organization bookings
    if (params.organizationId === null) {
      return;
    }
    // Skip queueing if booking audit is disabled for this organization
    if (!params.isBookingAuditEnabled) {
      this.log.debug(`Skipping ${params.action} audit: booking-audit feature is disabled for organization`, {
        organizationId: params.organizationId,
        bookingUid: params.bookingUid,
        action: params.action,
      });
      return;
    }
    try {
      const piiFreeActor = await this.getPIIFreeBookingAuditActor({
        actor: params.actor,
      });

      const operationId = params.operationId ?? uuidv4();

      await this.tasker.create("bookingAudit", {
        isBulk: false,
        bookingUid: params.bookingUid,
        actor: piiFreeActor,
        organizationId: params.organizationId,
        timestamp: Date.now(),
        action: params.action as BookingAuditAction,
        source: params.source,
        operationId,
        data: params.data,
        context: params.context,
      });
    } catch (error) {
      this.log.error(`Error while queueing ${params.action} audit`, safeStringify(error));
    }
  }

  async queueCreatedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof CreatedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: CreatedAuditActionService.TYPE,
    });
  }

  async queueRescheduledAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof RescheduledAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: RescheduledAuditActionService.TYPE,
    });
  }

  async queueAcceptedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof AcceptedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: AcceptedAuditActionService.TYPE,
    });
  }

  async queueCancelledAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof CancelledAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: CancelledAuditActionService.TYPE,
    });
  }

  async queueRescheduleRequestedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof RescheduleRequestedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: RescheduleRequestedAuditActionService.TYPE,
    });
  }

  async queueAttendeeAddedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof AttendeeAddedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: AttendeeAddedAuditActionService.TYPE,
    });
  }

  async queueNoShowUpdatedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof NoShowUpdatedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: NoShowUpdatedAuditActionService.TYPE,
    });
  }

  async queueRejectedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof RejectedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: RejectedAuditActionService.TYPE,
    });
  }

  async queueAttendeeRemovedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof AttendeeRemovedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: AttendeeRemovedAuditActionService.TYPE,
    });
  }

  async queueReassignmentAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof ReassignmentAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: ReassignmentAuditActionService.TYPE,
    });
  }

  async queueLocationChangedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof LocationChangedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: LocationChangedAuditActionService.TYPE,
    });
  }

  async queueSeatBookedAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof SeatBookedAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: SeatBookedAuditActionService.TYPE,
    });
  }

  async queueSeatRescheduledAudit(params: {
    bookingUid: string;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    data: z.infer<typeof SeatRescheduledAuditActionService.latestFieldsSchema>;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueTask({
      ...params,
      action: SeatRescheduledAuditActionService.TYPE,
    });
  }

  private async queueBulkTask(params: {
    bookings: Array<{
      bookingUid: string;
      data: unknown;
    }>;
    actor: Actor;
    organizationId: number | null;
    action: string;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    // Skip queueing for non-organization bookings
    if (params.organizationId === null) {
      return;
    }
    // Skip queueing if booking audit is disabled for this organization
    if (!params.isBookingAuditEnabled) {
      this.log.debug(
        `Skipping bulk ${params.action} audit: booking-audit feature is disabled for organization`,
        { organizationId: params.organizationId, bookingCount: params.bookings.length, action: params.action }
      );
      return;
    }
    try {
      const piiFreeActor = await this.getPIIFreeBookingAuditActor({
        actor: params.actor,
      });

      const operationId = params.operationId ?? uuidv4();

      await this.tasker.create("bookingAudit", {
        isBulk: true,
        bookings: params.bookings,
        actor: piiFreeActor,
        organizationId: params.organizationId,
        timestamp: Date.now(),
        action: params.action as BookingAuditAction,
        source: params.source,
        operationId,
        context: params.context,
      });
    } catch (error) {
      this.log.error(`Error while queueing bulk ${params.action} audit`, safeStringify(error));
    }
  }

  async queueBulkAcceptedAudit(params: {
    bookings: Array<{
      bookingUid: string;
      data: z.infer<typeof AcceptedAuditActionService.latestFieldsSchema>;
    }>;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueBulkTask({
      ...params,
      action: AcceptedAuditActionService.TYPE,
    });
  }

  async queueBulkCancelledAudit(params: {
    bookings: Array<{
      bookingUid: string;
      data: z.infer<typeof CancelledAuditActionService.latestFieldsSchema>;
    }>;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueBulkTask({
      ...params,
      action: CancelledAuditActionService.TYPE,
    });
  }

  async queueBulkCreatedAudit(params: {
    bookings: Array<{
      bookingUid: string;
      data: z.infer<typeof CreatedAuditActionService.latestFieldsSchema>;
    }>;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueBulkTask({
      ...params,
      action: CreatedAuditActionService.TYPE,
    });
  }

  async queueBulkRescheduledAudit(params: {
    bookings: Array<{
      bookingUid: string;
      data: z.infer<typeof RescheduledAuditActionService.latestFieldsSchema>;
    }>;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueBulkTask({
      ...params,
      action: RescheduledAuditActionService.TYPE,
    });
  }

  async queueBulkRejectedAudit(params: {
    bookings: Array<{
      bookingUid: string;
      data: z.infer<typeof RejectedAuditActionService.latestFieldsSchema>;
    }>;
    actor: Actor;
    organizationId: number | null;
    source: ActionSource;
    operationId?: string | null;
    context?: BookingAuditContext;
    isBookingAuditEnabled: boolean;
  }): Promise<void> {
    await this.queueBulkTask({
      ...params,
      action: RejectedAuditActionService.TYPE,
    });
  }
}