import { BaseModel } from '#database/base_model'
import { DeviceRecord } from '../domain/device/device_record.js'
import { DeviceId } from '../domain/device/device_id.js'
import { DeviceComplianceInfo } from '../domain/configuration/compliance.js'
import { Filter, Sort } from 'mongodb'

export default class DeviceModel extends BaseModel {
  static collectionName = 'devices'

  static async findByIdentifier(identifier: string): Promise<DeviceRecord | null> {
    return this.findOne({ identifier })
  }

  static async findByDeviceId(deviceId: DeviceId): Promise<DeviceRecord | null> {
    return this.findOne({
      'deviceId.manufacturer': deviceId.manufacturer,
      'deviceId.oui': deviceId.oui,
      'deviceId.productClass': deviceId.productClass,
      'deviceId.serialNumber': deviceId.serialNumber,
    })
  }

  static async paginateDevices(
    offset: number,
    limit: number,
    filter: Filter<any> = {}
  ): Promise<{ data: DeviceRecord[]; total: number }> {
    const collection = this.getCollection()
    // Only return documents created by the ACS (must have an identifier field)
    const safeFilter: Filter<any> = { ...filter, identifier: { $exists: true, $ne: null } }
    const total = await collection.countDocuments(safeFilter)
    const data = (await collection
      .find(safeFilter, { projection: { _id: 0 } })
      .skip(offset)
      .limit(limit)
      .sort({ updatedAt: -1 } as Sort)
      .toArray()) as unknown as DeviceRecord[]
    return { data, total }
  }

  static async createOrUpdate(device: Partial<DeviceRecord>): Promise<DeviceRecord> {
    const collection = this.getCollection()
    let filter: Filter<any> = {}

    if (device.deviceId) {
      filter = { deviceId: device.deviceId }
    } else if (device.identifier) {
      filter = { identifier: device.identifier }
    } else {
      throw new Error('Either identifier or deviceId must be provided')
    }

    const result = await collection.findOneAndUpdate(
      filter,
      {
        $set: { ...device, updatedAt: new Date() },
        $setOnInsert: { createdAt: new Date() },
      },
      { upsert: true, returnDocument: 'after', projection: { _id: 0 } }
    )

    return result as unknown as DeviceRecord
  }

  static async updateCompliance(
    identifier: string,
    compliance: DeviceComplianceInfo
  ): Promise<void> {
    await this.updateOne({ identifier }, { compliance })
  }

  static async updateProvisioningCode(
    identifier: string,
    provisioningCode: string
  ): Promise<void> {
    await this.updateOne({ identifier }, { provisioningCode })
  }

  static async resetComplianceForConfiguration(configurationIdentifier: string): Promise<void> {
    const collection = this.getCollection()
    await collection.updateMany(
      { 'compliance.configurationIdentifier': configurationIdentifier },
      {
        $set: {
          'compliance.status': 'pending',
          'compliance.lastError': null,
          updatedAt: new Date(),
        },
      }
    )
  }
}