import type { ApiClient } from '../../core'
import { BaseCrudApi } from '../../core'
import type {
  AutoPauseModePayload,
  Campaign,
  CampaignStats,
  CreateCampaignPayload,
  ExportCampaignResultPayload,
  ExportTemplateCsvPayload,
  HsmLimit,
  SetIntervalPayload,
  UpdateCampaignPayload,
} from './types'

export class CampaignsApi extends BaseCrudApi<
  Campaign,
  CreateCampaignPayload,
  UpdateCampaignPayload
> {
  constructor(client: ApiClient) {
    super(client, '/campaigns')

    this.sendById = this.sendById.bind(this)
    this.pauseById = this.pauseById.bind(this)
    this.resumeById = this.resumeById.bind(this)
    this.duplicateById = this.duplicateById.bind(this)
    this.getStatsById = this.getStatsById.bind(this)
    this.setIntervalById = this.setIntervalById.bind(this)
    this.getContactCount = this.getContactCount.bind(this)
    this.setAutoPauseMode = this.setAutoPauseMode.bind(this)
    this.exportCampaignResult = this.exportCampaignResult.bind(this)
    this.exportTemplateCsv = this.exportTemplateCsv.bind(this)
    this.getHsmLimit = this.getHsmLimit.bind(this)
  }

  /** Starts sending messages for the given campaign. */
  sendById(id: string): Promise<Campaign> {
    return this.client.post<Campaign>(`${this.basePath}/${id}/send`)
  }

  /** Pauses a campaign that is currently sending. */
  pauseById(id: string): Promise<Campaign> {
    return this.client.post<Campaign>(`${this.basePath}/${id}/pause`)
  }

  /** Resumes a previously paused campaign. */
  resumeById(id: string): Promise<Campaign> {
    return this.client.post<Campaign>(`${this.basePath}/${id}/resume`)
  }

  /** Creates a copy of an existing campaign. */
  duplicateById(id: string): Promise<Campaign> {
    return this.client.post<Campaign>(`${this.basePath}/${id}/duplicate`)
  }

  /** Returns send/delivery/view statistics for a campaign. */
  getStatsById(id: string): Promise<CampaignStats> {
    return this.client.get<CampaignStats>(`${this.basePath}/${id}/stats`)
  }

  /** Updates the min/max send interval for a campaign. */
  setIntervalById(id: string, data: SetIntervalPayload): Promise<Campaign> {
    return this.client.post<Campaign, SetIntervalPayload>(`${this.basePath}/${id}/interval`, data)
  }

  /** Returns the total number of contacts targeted by a campaign. */
  getContactCount(id: string): Promise<number> {
    return this.client.get<number>(`${this.basePath}/${id}/contactCount`)
  }

  /** Configures the auto-pause behavior for campaigns. */
  setAutoPauseMode(data: AutoPauseModePayload): Promise<unknown> {
    return this.client.put(`${this.basePath}/autoPauseMode`, data)
  }

  /** Exports campaign send results as a CSV file. */
  exportCampaignResult(data: ExportCampaignResultPayload): Promise<unknown> {
    return this.client.post(`${this.basePath}/export/csv`, data)
  }

  /** Exports a CSV template for importing contacts into an HSM campaign. */
  exportTemplateCsv(data: ExportTemplateCsvPayload): Promise<unknown> {
    return this.client.post(`${this.basePath}/exportTemplate`, data)
  }

  /** Returns the HSM message usage and limit for an account. */
  getHsmLimit(accountId: string): Promise<HsmLimit> {
    return this.client.get<HsmLimit>(`/whatsapp-business-templates/${accountId}/hsmLimit`)
  }
}