// @ts-nocheck [Joshen] Temporarily silencing the TS checks here but please eventually remove
// it's cause the API types are conflicting a bit - API types have probably been updated for the UI here
// but the UI hasn't been updated yet to fit the new API types

import { Activity, ChevronLeft, ExternalLink, Search, X } from 'lucide-react'
import Link from 'next/link'
import { useEffect, useState } from 'react'
import { toast } from 'sonner'

import { useParams } from 'common'
import Table from 'components/to-be-cleaned/Table'
import AlertError from 'components/ui/AlertError'
import { ButtonTooltip } from 'components/ui/ButtonTooltip'
import { useReplicationPipelineByIdQuery } from 'data/replication/pipeline-by-id-query'
import { useReplicationPipelineReplicationStatusQuery } from 'data/replication/pipeline-replication-status-query'
import { useReplicationPipelineStatusQuery } from 'data/replication/pipeline-status-query'
import { useStartPipelineMutation } from 'data/replication/start-pipeline-mutation'
import { useStopPipelineMutation } from 'data/replication/stop-pipeline-mutation'
import {
  PipelineStatusRequestStatus,
  usePipelineRequestStatus,
} from 'state/replication-pipeline-request-status'
import { Badge, Button, cn } from 'ui'
import { GenericSkeletonLoader } from 'ui-patterns'
import { Input } from 'ui-patterns/DataInputs/Input'
import { ErroredTableDetails } from './ErroredTableDetails'
import { getStatusName, PIPELINE_ERROR_MESSAGES } from './Pipeline.utils'
import { PipelineStatus } from './PipelineStatus'
import { STATUS_REFRESH_FREQUENCY_MS } from './Replication.constants'
import { TableState } from './ReplicationPipelineStatus.types'
import { getDisabledStateConfig, getStatusConfig } from './ReplicationPipelineStatus.utils'

/**
 * Component for displaying replication pipeline status and table replication details.
 * Supports both legacy 'error' state and new 'errored' state with retry policies.
 */
export const ReplicationPipelineStatus = () => {
  const { ref: projectRef, pipelineId: _pipelineId } = useParams()
  const [filterString, setFilterString] = useState<string>('')

  const pipelineId = Number(_pipelineId)
  const { getRequestStatus, updatePipelineStatus, setRequestStatus } = usePipelineRequestStatus()
  const requestStatus = getRequestStatus(pipelineId)

  const {
    data: pipeline,
    error: pipelineError,
    isLoading: isPipelineLoading,
    isError: isPipelineError,
  } = useReplicationPipelineByIdQuery({
    projectRef,
    pipelineId,
  })

  const {
    data: pipelineStatusData,
    error: pipelineStatusError,
    isLoading: isPipelineStatusLoading,
    isError: isPipelineStatusError,
    isSuccess: isPipelineStatusSuccess,
  } = useReplicationPipelineStatusQuery(
    { projectRef, pipelineId },
    {
      enabled: !!pipelineId,
      refetchInterval: STATUS_REFRESH_FREQUENCY_MS,
    }
  )

  const {
    data: replicationStatusData,
    error: statusError,
    isLoading: isStatusLoading,
    isError: isStatusError,
  } = useReplicationPipelineReplicationStatusQuery(
    { projectRef, pipelineId },
    {
      enabled: !!pipelineId,
      refetchInterval: STATUS_REFRESH_FREQUENCY_MS,
    }
  )

  const { mutateAsync: startPipeline, isLoading: isStartingPipeline } = useStartPipelineMutation()
  const { mutateAsync: stopPipeline, isLoading: isStoppingPipeline } = useStopPipelineMutation()

  const destinationName = pipeline?.destination_name
  const statusName = getStatusName(pipelineStatusData?.status)
  const config = getDisabledStateConfig({ requestStatus, statusName })

  const tableStatuses = replicationStatusData?.table_statuses || []
  const filteredTableStatuses =
    filterString.length === 0
      ? tableStatuses
      : tableStatuses.filter((table: TableState) =>
          table.table_name.toLowerCase().includes(filterString.toLowerCase())
        )

  const isPipelineRunning = statusName === 'started'
  const hasTableData = tableStatuses.length > 0
  const isEnablingDisabling =
    requestStatus === PipelineStatusRequestStatus.EnableRequested ||
    requestStatus === PipelineStatusRequestStatus.DisableRequested
  const showDisabledState = !isPipelineRunning || isEnablingDisabling

  const onTogglePipeline = async () => {
    if (!projectRef) {
      return console.error('Project ref is required')
    }
    if (!pipeline) {
      return toast.error(PIPELINE_ERROR_MESSAGES.NO_PIPELINE_FOUND)
    }

    try {
      if (statusName === 'stopped') {
        await startPipeline({ projectRef, pipelineId: pipeline.id })
        setRequestStatus(pipeline.id, PipelineStatusRequestStatus.EnableRequested)
      } else if (statusName === 'started') {
        await stopPipeline({ projectRef, pipelineId: pipeline.id })
        setRequestStatus(pipeline.id, PipelineStatusRequestStatus.DisableRequested)
      }
    } catch (error) {
      toast.error(PIPELINE_ERROR_MESSAGES.ENABLE_DESTINATION)
    }
  }

  useEffect(() => {
    updatePipelineStatus(pipelineId, statusName)
  }, [pipelineId, statusName, updatePipelineStatus])

  return (
    <div className="space-y-4">
      <div className="flex items-center justify-between">
        <div className="flex items-center gap-x-3">
          <Button asChild type="outline" icon={<ChevronLeft />} style={{ padding: '5px' }}>
            <Link href={`/project/${projectRef}/database/replication`} />
          </Button>
          <div>
            <div className="flex items-center gap-x-3">
              <h3 className="text-xl font-semibold">{destinationName || 'Pipeline'}</h3>
              <PipelineStatus
                pipelineStatus={pipelineStatusData?.status}
                error={pipelineStatusError}
                isLoading={isPipelineStatusLoading}
                isError={isPipelineStatusError}
                isSuccess={isPipelineStatusSuccess}
                requestStatus={requestStatus}
              />
            </div>
          </div>
        </div>
        <div className="flex items-center gap-x-2">
          <div className="relative">
            <Search
              className="absolute left-2 top-1/2 transform -translate-y-1/2 text-foreground-lighter"
              size={14}
            />
            <Input
              className="pl-7 h-[26px] text-xs"
              placeholder="Search for tables"
              value={filterString}
              disabled={isPipelineError}
              onChange={(e) => setFilterString(e.target.value)}
              actions={
                filterString.length > 0
                  ? [
                      <X
                        key="close"
                        className="mx-2 cursor-pointer text-foreground"
                        size={14}
                        strokeWidth={2}
                        onClick={() => setFilterString('')}
                      />,
                    ]
                  : undefined
              }
            />
          </div>
          <Button asChild type="default">
            <Link href={`/project/${projectRef}/logs/etl-replication-logs`}>View logs</Link>
          </Button>
          <Button
            type={statusName === 'stopped' ? 'primary' : 'default'}
            onClick={() => onTogglePipeline()}
            loading={isPipelineError || isStartingPipeline || isStoppingPipeline}
            disabled={!['failed', 'started', 'stopped', 'stopping'].includes(statusName ?? '')}
          >
            {statusName === 'stopped' ? 'Enable' : 'Disable'} pipeline
          </Button>
        </div>
      </div>

      {(isPipelineLoading || isStatusLoading) && <GenericSkeletonLoader />}

      {isPipelineError && (
        <AlertError error={pipelineError} subject={PIPELINE_ERROR_MESSAGES.RETRIEVE_PIPELINE} />
      )}

      {isStatusError && (
        <AlertError
          error={statusError}
          subject={PIPELINE_ERROR_MESSAGES.RETRIEVE_REPLICATION_STATUS}
        />
      )}

      {hasTableData && (
        <div className="flex flex-col gap-y-4">
          {showDisabledState && (
            <div
              className={cn(
                'p-4 border border-default rounded-lg flex items-center justify-between',
                config.colors.bg
              )}
            >
              <div className="flex items-center gap-x-3">
                <div
                  className={cn(
                    'w-10 h-10 rounded-full flex items-center justify-center',
                    config.colors.iconBg
                  )}
                >
                  <div className={config.colors.icon}>{config.icon}</div>
                </div>
                <div className="flex-1">
                  <h4 className={`text-sm font-medium ${config.colors.text}`}>{config.title}</h4>
                  <p className={`text-sm ${config.colors.subtext}`}>{config.message}</p>
                </div>
              </div>
            </div>
          )}

          <div className="w-full overflow-hidden overflow-x-auto">
            <Table
              head={[
                <Table.th key="table">Table</Table.th>,
                <Table.th key="status">Status</Table.th>,
                <Table.th key="details">Details</Table.th>,
              ]}
              body={
                <>
                  {filteredTableStatuses.length === 0 && hasTableData && (
                    <Table.tr>
                      <Table.td colSpan={3}>
                        <div className="space-y-1">
                          <p className="text-sm text-foreground">No results found</p>
                          <p className="text-sm text-foreground-light">
                            Your search for "{filterString}" did not return any results
                          </p>
                        </div>
                      </Table.td>
                    </Table.tr>
                  )}
                  {filteredTableStatuses.map((table: TableState, index: number) => {
                    const statusConfig = getStatusConfig(table.state)
                    return (
                      <Table.tr key={`${table.table_name}-${index}`} className="border-t">
                        <Table.td className="align-top">
                          <div className="flex items-center gap-x-2">
                            <p>{table.table_name}</p>

                            <ButtonTooltip
                              asChild
                              type="text"
                              className="px-1.5"
                              icon={<ExternalLink />}
                              tooltip={{
                                content: { side: 'bottom', text: 'Open in Table Editor' },
                              }}
                            >
                              <a
                                target="_blank"
                                rel="noopener noreferrer"
                                href={`/project/${projectRef}/editor/${table.table_id}`}
                              />
                            </ButtonTooltip>
                          </div>
                        </Table.td>
                        <Table.td className="align-top">
                          {showDisabledState ? (
                            <Badge variant="default">Not Available</Badge>
                          ) : (
                            statusConfig.badge
                          )}
                        </Table.td>
                        <Table.td className="align-top">
                          {showDisabledState ? (
                            <p className="text-sm text-foreground-lighter">
                              Status unavailable while pipeline is {config.badge.toLowerCase()}
                            </p>
                          ) : (
                            <div className="space-y-3">
                              <div className="text-sm text-foreground">
                                {statusConfig.description}
                              </div>
                              {'lag' in table.state && (
                                <div className="text-xs text-foreground-light">
                                  Lag: {table.state.lag}ms
                                </div>
                              )}
                              {table.state.name === 'error' && (
                                <ErroredTableDetails
                                  state={table.state}
                                  tableName={table.table_name}
                                  tableId={table.table_id}
                                />
                              )}
                            </div>
                          )}
                        </Table.td>
                      </Table.tr>
                    )
                  })}
                </>
              }
            />
          </div>
        </div>
      )}

      {!isStatusLoading && tableStatuses.length === 0 && (
        <div className="flex flex-col items-center justify-center py-16 px-4">
          <div className="w-full max-w-sm mx-auto text-center space-y-4">
            <div className="w-16 h-16 bg-surface-200 rounded-full flex items-center justify-center mx-auto">
              <Activity className="w-8 h-8 text-foreground-lighter" />
            </div>
            <div className="space-y-2">
              <h4 className="text-lg font-semibold text-foreground">
                {showDisabledState ? 'Pipeline Not Running' : 'No table status information'}
              </h4>
              <p className="text-sm text-foreground-light leading-relaxed">
                {showDisabledState
                  ? `The replication pipeline is currently ${statusName || 'not active'}. Table status
                information is not available while the pipeline is in this state.`
                  : `This pipeline doesn't have any table replication status data available yet. The status will appear here once replication begins.`}
              </p>
            </div>
            <p className="text-xs text-foreground-lighter">
              Data refreshes automatically every 2 seconds
            </p>
          </div>
        </div>
      )}
    </div>
  )
}