import { createElement, lazy } from 'react'

const ProductStockInfo = lazy(
  () =>
    import('../../components/Dashboard/Inventory/ProductStocks/ProductStockInfo')
)
const NewProductStock = lazy(
  () =>
    import('../../components/Dashboard/Inventory/ProductStocks/NewProductStock')
)
const PostProductStock = lazy(
  () =>
    import('../../components/Dashboard/Inventory/ProductStocks/PostProductStock')
)
const DeleteObject = lazy(
  () => import('../../components/Dashboard/common/DeleteObject')
)
import ProductStockIcon from '../../components/Icons/ProductStockIcon'
import PlusIcon from '../../components/Icons/PlusIcon'
import InfoCircleIcon from '../../components/Icons/InfoCircleIcon'
import EditIcon from '../../components/Icons/EditIcon'
import CheckIcon from '../../components/Icons/CheckIcon'
import XMarkIcon from '../../components/Icons/XMarkIcon'
import BinIcon from '../../components/Icons/BinIcon'
import ListIcon from '../../components/Icons/ListIcon'

export const ProductStock = {
  name: 'productStock',
  label: 'Product Stock',
  labelPlural: 'Product Stocks',
  url: '/dashboard/inventory/productstocks',
  prefix: 'PDS',
  icon: ProductStockIcon,
  actions: [
    {
      name: 'new',
      type: 'modal',
      pageName: 'list',
      modalWidth: 800,
      label: 'New Product Stock',
      icon: PlusIcon,
      content: (objectData, { onOk } = {}) => {
        return createElement(NewProductStock, {
          defaultValues: objectData,
          onOk,
          reset: true
        })
      }
    },
    {
      name: 'list',
      type: 'page',
      pageName: 'list',
      label: 'List',
      icon: ListIcon
    },
    {
      name: 'info',
      type: 'page',
      pageName: 'info',
      label: 'Info',
      default: true,
      row: true,
      icon: InfoCircleIcon
    },
    {
      name: 'edit',
      type: 'page',
      pageName: 'info',
      label: 'Edit',
      row: true,
      icon: EditIcon,
      visible: (objectData) => {
        return !(objectData?._isEditing && objectData?._isEditing == true)
      },
      disabled: (objectData) => {
        return objectData?.state?.type != 'draft'
      }
    },
    {
      name: 'cancelEdit',
      label: 'Cancel Edits',
      type: 'page',
      pageName: 'info',
      icon: XMarkIcon,
      visible: (objectData) => {
        return objectData?._isEditing && objectData?._isEditing == true
      }
    },
    {
      name: 'finishEdit',
      label: 'Save Edits',
      type: 'page',
      pageName: 'info',
      icon: CheckIcon,
      visible: (objectData) => {
        return objectData?._isEditing && objectData?._isEditing == true
      }
    },
    {
      name: 'delete',
      type: 'modal',
      modalWidth: 520,
      modalCentered: true,
      label: 'Delete',
      icon: BinIcon,
      danger: true,
      visible: (objectData) => {
        return !(objectData?._isEditing && objectData?._isEditing == true)
      },
      disabled: (objectData) => {
        return objectData?.state?.type != 'draft'
      },
      content: (objectData, { onOk } = {}) => {
        return createElement(DeleteObject, { objectData, onOk })
      }
    },
    { type: 'divider' },
    {
      name: 'post',
      type: 'modal',
      modalWidth: 520,
      label: 'Post',
      icon: CheckIcon,
      disabled: (objectData) => {
        if (objectData?._isEditing == true) return true
        return objectData?.partStockList?.some(
          (row) => row?.remainingQuantity > 0
        )
      },
      visible: (objectData) => {
        return objectData?.state?.type == 'draft'
      },
      content: (objectData, { onOk } = {}) => {
        return createElement(PostProductStock, { objectData, onOk })
      }
    }
  ],
  pages: [
    {
      name: 'info',
      content: () => createElement(ProductStockInfo)
    }
  ],
  filters: [
    'product',
    'productSku',
    'state',
    'currentQuantity',
    'stockLocation',
    'createdAt',
    'updatedAt',
    '_reference'
  ],
  sorters: [
    'product',
    'productSku',
    'currentQuantity',
    'state',
    'createdAt',
    'updatedAt',
    'stockLocation'
  ],
  columns: [
    '_reference',
    'state',
    'currentQuantity',
    'product',
    'productSku',
    'stockLocation',
    'createdAt',
    'updatedAt'
  ],
  properties: [
    {
      name: '_id',
      label: 'ID',
      type: 'id',
      objectType: 'productStock',
      showCopy: true,
      readOnly: true,
      columnWidth: 140
    },
    {
      name: 'createdAt',
      label: 'Created At',
      type: 'dateTime',
      readOnly: true,
      columnWidth: 175
    },
    {
      name: '_reference',
      label: 'Reference',
      type: 'reference',
      columnFixed: 'left',
      objectType: 'productStock',
      showCopy: true,
      readOnly: true,
      columnWidth: 180
    },
    {
      name: 'updatedAt',
      label: 'Updated At',
      type: 'dateTime',
      readOnly: true,
      columnWidth: 175
    },
    {
      name: 'state',
      label: 'State',
      type: 'state',
      readOnly: true,
      columnWidth: 260
    },
    {
      name: 'postedAt',
      label: 'Posted At',
      type: 'dateTime',
      readOnly: true,
      columnWidth: 175
    },

    {
      name: 'product',
      label: 'Product',
      type: 'object',
      objectType: 'product',
      required: true,
      showHyperlink: true,
      columnWidth: 200
    },
    {
      name: 'productSku',
      label: 'Product SKU',
      type: 'object',
      objectType: 'productSku',
      required: true,
      showHyperlink: true,
      columnWidth: 200,
      masterFilter: (objectData) => {
        return { product: objectData?.product?._id }
      }
    },
    {
      name: 'stockLocation',
      label: 'Stock location',
      type: 'object',
      objectType: 'stockLocation',
      required: true,
      showHyperlink: true,
      columnWidth: 200,
      readOnly: (objectData) => {
        return objectData?.state?.type != 'draft'
      }
    },
    {
      name: 'currentQuantity',
      label: 'Current Quantity',
      type: 'number',
      columnWidth: 200,
      required: true
    },
    {
      name: 'partStockList',
      label: 'Part Stock List',
      type: 'objectChildren',
      canAddRemove: false,
      size: 'medium',
      value: (objectData) => {
        if (
          objectData?._isEditing == false ||
          objectData?.state?.type != 'draft'
        ) {
          return objectData?.partStockList || []
        }
        const getId = (val) => {
          if (val == null) return null
          if (typeof val === 'object') {
            return val._id != null ? String(val._id) : null
          }
          return String(val)
        }

        const toPartStocks = (row) => {
          if (Array.isArray(row?.partStocks)) return row.partStocks
          if (row?.partStock) return [row.partStock]
          return []
        }

        const skuParts = objectData?.productSku?.parts
        const existing = objectData?.partStockList
        const currentQuantity = Number(objectData?.currentQuantity) || 0
        const requiredFromPart = (part) =>
          (Number(part?.quantity) || 0) * currentQuantity

        const buildRow = (part, existingRow) => ({
          ...existingRow,
          part: part?.part?._id ? part.part : { _id: part.part },
          partSku: part.partSku?._id ? part.partSku : { _id: part.partSku },
          requiredQuantity: requiredFromPart(part),
          partStocks: toPartStocks(existingRow)
        })

        const rowsMatchSkuParts = (rows, parts) => {
          if (!Array.isArray(rows) || rows.length !== parts.length) return false
          return parts.every((part, index) => {
            const row = rows[index]
            return (
              getId(row?.partSku) === getId(part.partSku) &&
              getId(row?.part) === getId(part.part) &&
              Number(row?.requiredQuantity) === requiredFromPart(part) &&
              Array.isArray(row?.partStocks)
            )
          })
        }

        if (Array.isArray(skuParts)) {
          if (skuParts.length === 0) return []
          if (rowsMatchSkuParts(existing, skuParts)) return undefined
          return skuParts.map((part) => {
            const existingRow = Array.isArray(existing)
              ? existing.find(
                  (row) => getId(row.partSku) === getId(part.partSku)
                )
              : undefined
            return buildRow(part, existingRow)
          })
        }

        if (!Array.isArray(existing)) return []

        const needsNormalize = existing.some(
          (row) =>
            (row.requiredQuantity == null && row.quantity != null) ||
            (row.part == null && row.partSku?.part != null) ||
            !Array.isArray(row.partStocks)
        )
        if (!needsNormalize) return []

        return existing.map((row) => ({
          ...row,
          part: row.part ?? row.partSku?.part,
          requiredQuantity: row.requiredQuantity ?? row.quantity,
          partStocks: toPartStocks(row)
        }))
      },
      properties: [
        {
          name: 'part',
          label: 'Part',
          type: 'object',
          objectType: 'part',
          readOnly: true,
          required: true,
          showHyperlink: true
        },
        {
          name: 'partSku',
          label: 'Part SKU',
          type: 'object',
          objectType: 'partSku',
          readOnly: true,
          required: true,
          showHyperlink: true
        },
        {
          name: 'partStocks',
          label: 'Part Stocks',
          type: 'objectList',
          objectType: 'partStock',
          required: false,
          showHyperlink: true,
          columnWidth: 260,
          masterFilter: (objectData, parentData) => {
            return {
              part: objectData?.part?._id,
              partSku: objectData?.partSku?._id,
              stockLocation: parentData?.stockLocation?._id,
              $or: [{ 'state.type': 'new' }, { 'state.type': 'used' }]
            }
          }
        },
        {
          name: 'requiredQuantity',
          label: 'Required Quantity',
          type: 'number',
          required: true,
          columnWidth: 190,
          readOnly: true,
          value: (objectData) =>
            objectData?.requiredQuantity ?? objectData?.quantity
        },
        {
          name: 'remainingQuantity',
          label: 'Remaining Quantity',
          type: 'number',
          columnWidth: 190,
          readOnly: true,
          value: (objectData) => {
            const required =
              objectData?.requiredQuantity ?? objectData?.quantity ?? 0
            const stocks = Array.isArray(objectData?.partStocks)
              ? objectData.partStocks
              : []
            const available = Math.max(
              0,
              stocks.reduce(
                (sum, stock) => sum + (Number(stock?.currentQuantity) || 0),
                0
              )
            )
            return Math.max(0, required - available)
          }
        }
      ]
    }
  ],
  stats: [
    {
      name: 'draft.count',
      label: 'Draft',
      type: 'number',
      color: 'default'
    },
    {
      name: 'new.count',
      label: 'New',
      type: 'number',
      color: 'success'
    },
    {
      name: 'used.count',
      label: 'Used',
      type: 'number',
      color: 'warning'
    },
    {
      name: 'consumed.count',
      label: 'Consumed',
      type: 'number',
      color: 'default'
    },
    {
      name: 'totalCurrentQuantity.sum',
      label: 'Total Current Quantity',
      type: 'number',
      roundNumber: 2,
      cardWidth: 200,
      historyGroup: 'value'
    }
  ]
}