import { createApp, type App as VueApp } from 'vue'
import PrimeVue from 'primevue/config'
import LoraPoolWidget from '@/components/LoraPoolWidget.vue'
import LoraRandomizerWidget from '@/components/LoraRandomizerWidget.vue'
import type { LoraPoolConfig, LegacyLoraPoolConfig, RandomizerConfig } from './composables/types'

// @ts-ignore - ComfyUI external module
import { app } from '../../../scripts/app.js'

const vueApps = new Map<number, VueApp>()

// Cache for dynamically loaded addLorasWidget module
let addLorasWidgetCache: any = null

// @ts-ignore
function createLoraPoolWidget(node) {
  const container = document.createElement('div')
  container.id = `lora-pool-widget-${node.id}`
  container.style.width = '100%'
  container.style.height = '100%'
  container.style.display = 'flex'
  container.style.flexDirection = 'column'
  container.style.overflow = 'hidden'

  let internalValue: LoraPoolConfig | LegacyLoraPoolConfig | undefined

  const widget = node.addDOMWidget(
    'pool_config',
    'LORA_POOL_CONFIG',
    container,
    {
      getValue() {
        return internalValue
      },
      setValue(v: LoraPoolConfig | LegacyLoraPoolConfig) {
        internalValue = v
        if (typeof widget.onSetValue === 'function') {
          widget.onSetValue(v)
        }
      },
      serialize: true,
      // Per dev guide: providing getMinHeight via options allows the system to
      // skip expensive DOM measurements during rendering loop, improving performance
      getMinHeight() {
        return 400
      }
    }
  )

  widget.updateConfig = (v: LoraPoolConfig) => {
    internalValue = v
  }

  const vueApp = createApp(LoraPoolWidget, {
    widget,
    node
  })

  vueApp.use(PrimeVue, {
    unstyled: true,
    ripple: false
  })

  vueApp.mount(container)
  vueApps.set(node.id, vueApp)

  widget.computeLayoutSize = () => {
    const minWidth = 500
    const minHeight = 400

    return { minHeight, minWidth }
  }

  widget.onRemove = () => {
    const vueApp = vueApps.get(node.id)
    if (vueApp) {
      vueApp.unmount()
      vueApps.delete(node.id)
    }
  }

  return { widget }
}

// @ts-ignore
function createLoraRandomizerWidget(node) {
  const container = document.createElement('div')
  container.id = `lora-randomizer-widget-${node.id}`
  container.style.width = '100%'
  container.style.height = '100%'
  container.style.display = 'flex'
  container.style.flexDirection = 'column'
  container.style.overflow = 'hidden'

  let internalValue: RandomizerConfig | undefined

  const widget = node.addDOMWidget(
    'randomizer_config',
    'RANDOMIZER_CONFIG',
    container,
    {
      getValue() {
        return internalValue
      },
      setValue(v: RandomizerConfig) {
        internalValue = v
        if (typeof widget.onSetValue === 'function') {
          widget.onSetValue(v)
        }
      },
      serialize: true,
      getMinHeight() {
        return 500
      }
    }
  )

  widget.updateConfig = (v: RandomizerConfig) => {
    internalValue = v
  }

  // Handle roll event from Vue component
  widget.onRoll = (randomLoras: any[]) => {
    console.log('[createLoraRandomizerWidget] Roll event received:', randomLoras)

    // Find the loras widget on this node and update it
    const lorasWidget = node.widgets.find((w: any) => w.name === 'loras')
    if (lorasWidget) {
      lorasWidget.value = randomLoras
      console.log('[createLoraRandomizerWidget] Updated loras widget with rolled LoRAs')
    } else {
      console.warn('[createLoraRandomizerWidget] loras widget not found on node')
    }
  }

  const vueApp = createApp(LoraRandomizerWidget, {
    widget,
    node
  })

  vueApp.use(PrimeVue, {
    unstyled: true,
    ripple: false
  })

  vueApp.mount(container)
  vueApps.set(node.id + 10000, vueApp) // Offset to avoid collision with pool widget

  widget.computeLayoutSize = () => {
    const minWidth = 500
    const minHeight = 500
    const maxHeight = 500

    return { minHeight, minWidth, maxHeight }
  }

  widget.onRemove = () => {
    const vueApp = vueApps.get(node.id + 10000)
    if (vueApp) {
      vueApp.unmount()
      vueApps.delete(node.id + 10000)
    }
  }

  return { widget }
}

app.registerExtension({
  name: 'LoraManager.VueWidgets',

    getCustomWidgets() {
    return {
      // @ts-ignore
      LORA_POOL_CONFIG(node) {
        return createLoraPoolWidget(node)
      },
      // @ts-ignore
      RANDOMIZER_CONFIG(node) {
        return createLoraRandomizerWidget(node)
      },
      // @ts-ignore
      async LORAS(node: any) {
        if (!addLorasWidgetCache) {
          const module = await import(/* @vite-ignore */ '../loras_widget.js')
          addLorasWidgetCache = module.addLorasWidget
        }
        return addLorasWidgetCache(node, 'loras', {}, null)
      }
    }
  }
})