import { BarChart2, Settings2, Table } from 'lucide-react'
import { useEffect, useEffectEvent, useMemo } from 'react'
import {
  Checkbox,
  Popover,
  PopoverContent,
  PopoverSeparator,
  PopoverTrigger,
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
  ToggleGroup,
  ToggleGroupItem,
  Tooltip,
  TooltipContent,
  TooltipTrigger,
} from 'ui'
import { FormItemLayout } from 'ui-patterns/form/FormItemLayout/FormItemLayout'
import { type Snapshot } from 'valtio'

import { ExplorerToolbarAction } from '../ExplorerToolbar'
import { type QueryResult } from '../types'
import { checkHasNonPositiveValues } from '@/components/ui/QueryBlock/QueryBlock.utils'
import { type DatabaseCell as DatabaseCellSchema } from '@/data/content/notebooks/notebook-schema'
import { useCurrentNotebook, useNotebooksStateSnapshot } from '@/state/notebooks/notebooks-state'

interface DisplaySettingsButtonProps {
  cell: Snapshot<DatabaseCellSchema>
  result?: QueryResult
  columns: string[]
  disabled: boolean
}

// [Joshen] TODO support multiple y axis charts

export const DisplaySettingsButton = ({
  cell,
  result,
  columns,
  disabled,
}: DisplaySettingsButtonProps) => {
  const snap = useNotebooksStateSnapshot()
  const currentNotebook = useCurrentNotebook()
  const cells = currentNotebook?.notebook.content?.cells ?? []

  const { view, chart } = cell
  const {
    type = 'bar',
    x_column,
    y_columns = [],
    cumulative = false,
    show_labels = false,
    scale = 'linear',
  } = chart ?? {}

  const hasNonPositiveValues = useMemo(
    () => checkHasNonPositiveValues(result?.rows ?? [], y_columns[0]),
    [result, y_columns]
  )

  const canToggleLogScale = useMemo(() => {
    if (y_columns.length === 0 || !result || (result.rows ?? []).length === 0) return false
    return !hasNonPositiveValues
  }, [hasNonPositiveValues, result, y_columns.length])

  const onChangeView = (view: 'table' | 'chart') => {
    const notebookId = currentNotebook?.notebook.id
    if (!notebookId) return

    const nextCells = cells.map((c) =>
      c.id === cell.id && c._tag === 'database_cell' ? { ...c, view } : c
    )
    snap.updateCells({ id: notebookId, cells: nextCells })
  }

  const onUpdateChartConfig = (
    payload:
      | { type: 'bar' | 'line' }
      | { x_column: string }
      | { y_columns: string[] }
      | { cumulative: boolean }
      | { show_labels: boolean }
      | { scale: 'linear' | 'log' }
  ) => {
    const notebookId = currentNotebook?.notebook.id
    if (!notebookId) return

    const nextCells = cells.map((c) => {
      if (c.id !== cell.id || c._tag !== 'database_cell') return c

      return {
        ...c,
        chart: {
          type: c.chart?.type ?? 'bar',
          x_column: c.chart?.x_column ?? '',
          y_columns: c.chart?.y_columns ?? [],
          cumulative: c.chart?.cumulative ?? false,
          scale: c.chart?.scale ?? 'linear',
          show_labels: c.chart?.show_labels ?? false,
          ...payload,
        },
      }
    })
    snap.updateCells({ id: notebookId, cells: nextCells })
  }

  const resetToLinearScale = useEffectEvent(() => {
    onUpdateChartConfig({ scale: 'linear' })
  })

  useEffect(() => {
    if (hasNonPositiveValues && scale === 'log') {
      resetToLinearScale()
    }
  }, [hasNonPositiveValues, scale])

  return (
    <Popover>
      <PopoverTrigger asChild>
        <ExplorerToolbarAction disabled={disabled} icon={<Settings2 />} tooltip="Result settings" />
      </PopoverTrigger>
      <PopoverContent side="bottom" className="flex flex-col gap-y-3 p-0 py-3 mr-8">
        <div className="flex flex-col gap-y-3 px-3">
          <p className="text-xs tracking-tighter uppercase font-mono text-foreground-lighter">
            Result display settings
          </p>

          <FormItemLayout isReactForm={false} label="View data as">
            <ToggleGroup
              value={view}
              onValueChange={(value) => {
                if (value === 'table' || value === 'chart') onChangeView(value)
              }}
              variant="outline"
              type="single"
            >
              <ToggleGroupItem value="table" className="w-full gap-x-2 data-[state=on]:bg-accent">
                <Table size={14} />
                <p>Table</p>
              </ToggleGroupItem>
              <ToggleGroupItem value="chart" className="w-full gap-x-2 data-[state=on]:bg-accent">
                <BarChart2 size={14} />
                <p>Chart</p>
              </ToggleGroupItem>
            </ToggleGroup>
          </FormItemLayout>
        </div>

        {view === 'chart' && (
          <>
            <PopoverSeparator />

            <FormItemLayout isReactForm={false} label="Render chart as" className="px-3 mb-1">
              <ToggleGroup
                value={type}
                onValueChange={(value) => {
                  if (value === 'bar' || value === 'line') onUpdateChartConfig({ type: value })
                }}
                variant="outline"
                type="single"
              >
                <ToggleGroupItem value="bar" className="w-full data-[state=on]:bg-accent">
                  Bar
                </ToggleGroupItem>
                <ToggleGroupItem value="line" className="w-full data-[state=on]:bg-accent">
                  Line
                </ToggleGroupItem>
              </ToggleGroup>
            </FormItemLayout>

            <div className="px-3 flex flex-col gap-y-2">
              <FormItemLayout isReactForm={false} layout="flex-row-reverse" label="X axis">
                <Select
                  value={x_column}
                  onValueChange={(x_column) => onUpdateChartConfig({ x_column })}
                >
                  <SelectTrigger className="w-32">
                    <SelectValue placeholder="Select a column" />
                  </SelectTrigger>
                  <SelectContent>
                    {columns.map((x) => (
                      <SelectItem key={x} value={x}>
                        {x}
                      </SelectItem>
                    ))}
                  </SelectContent>
                </Select>
              </FormItemLayout>

              <FormItemLayout isReactForm={false} layout="flex-row-reverse" label="Y Axis">
                <Select
                  value={y_columns?.[0]}
                  onValueChange={(y_column) => onUpdateChartConfig({ y_columns: [y_column] })}
                >
                  <SelectTrigger className="w-32">
                    <SelectValue placeholder="Select a column" />
                  </SelectTrigger>
                  <SelectContent>
                    {columns.map((x) => (
                      <SelectItem key={x} value={x}>
                        {x}
                      </SelectItem>
                    ))}
                  </SelectContent>
                </Select>
              </FormItemLayout>

              <FormItemLayout isReactForm={false} layout="flex-row-reverse" label="Scale">
                <Select
                  value={scale}
                  onValueChange={(scale) =>
                    onUpdateChartConfig({ scale: scale as 'log' | 'linear' })
                  }
                >
                  <SelectTrigger className="w-32">
                    <SelectValue placeholder="Select a column" />
                  </SelectTrigger>
                  <SelectContent>
                    <SelectItem value="linear">Linear</SelectItem>
                    <Tooltip>
                      <TooltipTrigger asChild>
                        <SelectItem
                          disabled={!canToggleLogScale}
                          value="log"
                          className={!canToggleLogScale ? '!pointer-events-auto' : undefined}
                        >
                          Logarithmic
                        </SelectItem>
                      </TooltipTrigger>
                      {!canToggleLogScale && (
                        <TooltipContent side="right">
                          {y_columns.length === 0
                            ? 'Select a column for the Y axis first'
                            : 'Data contains zero or negative values'}
                        </TooltipContent>
                      )}
                    </Tooltip>
                  </SelectContent>
                </Select>
              </FormItemLayout>

              <FormItemLayout id="cumulative" isReactForm={false} layout="flex" label="Cumulative">
                <Checkbox
                  id="cumulative"
                  checked={cumulative}
                  onCheckedChange={(cumulative) =>
                    onUpdateChartConfig({ cumulative: Boolean(cumulative) })
                  }
                />
              </FormItemLayout>

              <FormItemLayout
                id="show_labels"
                isReactForm={false}
                layout="flex"
                label="Show labels"
              >
                <Checkbox
                  id="show_labels"
                  checked={show_labels}
                  onCheckedChange={(show_labels) =>
                    onUpdateChartConfig({ show_labels: Boolean(show_labels) })
                  }
                />
              </FormItemLayout>
            </div>
          </>
        )}
      </PopoverContent>
    </Popover>
  )
}