'use client'

import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog'
import { Badge } from '@/components/ui/badge'
import { Button } from '@/components/ui/button'
import { FileText } from 'lucide-react'
import ReactMarkdown from 'react-markdown'
import remarkGfm from 'remark-gfm'
import { useInsight } from '@/lib/hooks/use-insights'
import { useModalManager } from '@/lib/hooks/use-modal-manager'

interface SourceInsightDialogProps {
  open: boolean
  onOpenChange: (open: boolean) => void
  insight?: {
    id: string
    insight_type?: string
    content?: string
    created?: string
    source_id?: string
  }
}

export function SourceInsightDialog({ open, onOpenChange, insight }: SourceInsightDialogProps) {
  const { openModal } = useModalManager()

  // Ensure insight ID has 'source_insight:' prefix for API calls
  const insightIdWithPrefix = insight?.id
    ? (insight.id.includes(':') ? insight.id : `source_insight:${insight.id}`)
    : ''

  const { data: fetchedInsight, isLoading } = useInsight(insightIdWithPrefix, { enabled: open && !!insight?.id })

  // Use fetched data if available, otherwise fall back to passed-in insight
  const displayInsight = fetchedInsight ?? insight

  // Get source_id from fetched data (preferred) or passed-in insight
  const sourceId = fetchedInsight?.source_id ?? insight?.source_id

  const handleViewSource = () => {
    if (sourceId) {
      openModal('source', sourceId)
    }
  }

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="sm:max-w-3xl max-h-[90vh] flex flex-col">
        <DialogHeader>
          <DialogTitle className="flex items-center justify-between gap-2">
            <span>Source Insight</span>
            <div className="flex items-center gap-2">
              {displayInsight?.insight_type && (
                <Badge variant="outline" className="text-xs uppercase">
                  {displayInsight.insight_type}
                </Badge>
              )}
              {sourceId && (
                <Button
                  variant="outline"
                  size="sm"
                  onClick={handleViewSource}
                  className="gap-1"
                >
                  <FileText className="h-3 w-3" />
                  View Source
                </Button>
              )}
            </div>
          </DialogTitle>
        </DialogHeader>

        <div className="flex-1 overflow-y-auto min-h-0">
          {isLoading ? (
            <div className="flex items-center justify-center py-10">
              <span className="text-sm text-muted-foreground">Loading insight…</span>
            </div>
          ) : displayInsight ? (
            <div className="prose prose-sm prose-neutral dark:prose-invert max-w-none">
              <ReactMarkdown
                remarkPlugins={[remarkGfm]}
                components={{
                  table: ({ children }) => (
                    <div className="my-4 overflow-x-auto">
                      <table className="min-w-full border-collapse border border-border">{children}</table>
                    </div>
                  ),
                  thead: ({ children }) => <thead className="bg-muted">{children}</thead>,
                  tbody: ({ children }) => <tbody>{children}</tbody>,
                  tr: ({ children }) => <tr className="border-b border-border">{children}</tr>,
                  th: ({ children }) => <th className="border border-border px-3 py-2 text-left font-semibold">{children}</th>,
                  td: ({ children }) => <td className="border border-border px-3 py-2">{children}</td>,
                }}
              >
                {displayInsight.content}
              </ReactMarkdown>
            </div>
          ) : (
            <p className="text-sm text-muted-foreground">No insight selected.</p>
          )}
        </div>
      </DialogContent>
    </Dialog>
  )
}