import type { HttpContext } from '@adonisjs/core/http'
import DeviceModel from '#models/device'
import { getReferenceEngine } from '#services/references/reference_engine'

export default class ReferencesController {
  /**
   * GET /api/v1/devices/:identifier/references
   */
  async index({ params, response }: HttpContext) {
    const device = await DeviceModel.findByIdentifier(params.identifier)
    if (!device) {
      return response.status(404).json({ message: 'Device not found' })
    }
    return response.json({ references: device.references || [] })
  }

  /**
   * GET /api/v1/devices/:identifier/references/:provider
   */
  async show({ params, response }: HttpContext) {
    const device = await DeviceModel.findByIdentifier(params.identifier)
    if (!device) {
      return response.status(404).json({ message: 'Device not found' })
    }
    const ref = (device.references || []).find((r: any) => r.provider === params.provider)
    if (!ref) {
      return response
        .status(404)
        .json({ message: `No reference from provider '${params.provider}'` })
    }
    return response.json(ref)
  }

  /**
   * POST /api/v1/devices/:identifier/references/resolve
   * Trigger resolution for all applicable providers.
   */
  async resolveAll({ params, response }: HttpContext) {
    const device = await DeviceModel.findByIdentifier(params.identifier)
    if (!device) {
      return response.status(404).json({ message: 'Device not found' })
    }

    const engine = getReferenceEngine()
    const context = { events: ['MANUAL'], remoteIp: '', headers: {} }

    // For manual resolution, use all providers regardless of trigger
    const results = await engine.resolveAll(device, { ...context, events: ['0 BOOTSTRAP'] })

    if (results.length > 0) {
      // Merge with existing references (replace by provider name)
      const existing = (device.references || []).filter(
        (r: any) => !results.some((nr) => nr.provider === r.provider)
      )
      const merged = [...existing, ...results]
      await DeviceModel.updateOne(
        { identifier: params.identifier },
        { $set: { references: merged, updatedAt: new Date() } }
      )
    }

    return response.json({ resolved: results.length, references: results })
  }

  /**
   * POST /api/v1/devices/:identifier/references/resolve/:provider
   * Trigger resolution for a single provider.
   */
  async resolveOne({ params, response }: HttpContext) {
    const device = await DeviceModel.findByIdentifier(params.identifier)
    if (!device) {
      return response.status(404).json({ message: 'Device not found' })
    }

    const engine = getReferenceEngine()
    const context = { events: ['0 BOOTSTRAP'], remoteIp: '', headers: {} }
    const result = await engine.resolveOne(params.provider, device, context)

    if (!result) {
      return response
        .status(404)
        .json({ message: `Provider '${params.provider}' not found or cannot resolve` })
    }

    // Merge into device references
    const existing = (device.references || []).filter((r: any) => r.provider !== params.provider)
    await DeviceModel.updateOne(
      { identifier: params.identifier },
      { $set: { references: [...existing, result], updatedAt: new Date() } }
    )

    return response.json(result)
  }
}