"use client"

import * as React from "react"
import { Button } from "@/components/ui/button"
import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card"
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog"
import { Textarea } from "@/components/ui/textarea"
import { Badge } from "@/components/ui/badge"
import { useMutation } from "convex/react"
import { api } from "@/convex/_generated/api"

type SectionKey =
  | "profile"
  | "features"
  | "competitors"
  | "keywords"
  | "problems"
  | "personas"
  | "useCases"
  | "dorkQueries"

function summarizeItem(item: any) {
  if (typeof item === "string") return item
  if (!item || typeof item !== "object") return String(item)
  if (item.name && item.role) return `${item.name} · ${item.role}`
  if (item.name) return item.name
  if (item.term) return item.term
  if (item.problem) return item.problem
  if (item.scenario) return item.scenario
  if (item.query) return item.query
  return JSON.stringify(item)
}

export function SectionEditor({
  analysisId,
  sectionKey,
  title,
  items,
}: {
  analysisId: string
  sectionKey: SectionKey
  title: string
  items: any[]
}) {
  const addItem = useMutation(api.analysisSections.addItem)
  const removeItem = useMutation(api.analysisSections.removeItem)

  const [isRepromptOpen, setIsRepromptOpen] = React.useState(false)
  const [repromptText, setRepromptText] = React.useState("")
  const [isAddOpen, setIsAddOpen] = React.useState(false)
  const [addText, setAddText] = React.useState("")
  const [isBusy, setIsBusy] = React.useState(false)

  const handleAdd = async () => {
    setIsBusy(true)
    try {
      let parsed: any = addText
      if (addText.trim().startsWith("{") || addText.trim().startsWith("[")) {
        parsed = JSON.parse(addText)
      }
      await addItem({ analysisId: analysisId as any, sectionKey, item: parsed })
      setAddText("")
      setIsAddOpen(false)
    } finally {
      setIsBusy(false)
    }
  }

  const handleReprompt = async () => {
    setIsBusy(true)
    try {
      const response = await fetch("/api/analysis/reprompt", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          analysisId,
          sectionKey,
          prompt: repromptText.trim() || undefined,
        }),
      })
      if (!response.ok) {
        const data = await response.json()
        throw new Error(data.error || "Reprompt failed")
      }
      setRepromptText("")
      setIsRepromptOpen(false)
    } finally {
      setIsBusy(false)
    }
  }

  return (
    <Card>
      <CardHeader className="flex flex-row items-center justify-between gap-3">
        <CardTitle className="text-base">{title}</CardTitle>
        <div className="flex flex-wrap items-center gap-2">
          <Button variant="outline" size="sm" onClick={() => setIsAddOpen(true)}>
            Add
          </Button>
          <Button variant="secondary" size="sm" onClick={() => setIsRepromptOpen(true)}>
            Reprompt
          </Button>
        </div>
      </CardHeader>
      <CardContent className="space-y-2 text-sm">
        {items.length === 0 ? (
          <div className="text-muted-foreground">No items yet.</div>
        ) : (
          items.map((item, index) => (
            <div
              key={`${sectionKey}-${index}`}
              className="flex flex-wrap items-start justify-between gap-2 rounded-md border border-border/60 p-3"
            >
              <div className="space-y-2">
                <div className="font-medium">{summarizeItem(item)}</div>
                <Badge variant="outline">#{index + 1}</Badge>
              </div>
              <Button
                variant="ghost"
                size="sm"
                onClick={() => removeItem({ analysisId: analysisId as any, sectionKey, index })}
              >
                Remove
              </Button>
            </div>
          ))
        )}
      </CardContent>

      <Dialog open={isAddOpen} onOpenChange={setIsAddOpen}>
        <DialogContent>
          <DialogHeader>
            <DialogTitle>Add to {title}</DialogTitle>
            <DialogDescription>
              Paste JSON for an item, or plain text for a string entry.
            </DialogDescription>
          </DialogHeader>
          <Textarea
            value={addText}
            onChange={(event) => setAddText(event.target.value)}
            placeholder='{"name":"...", "description":"..."}'
            className="min-h-[160px]"
          />
          <DialogFooter>
            <Button variant="outline" onClick={() => setIsAddOpen(false)} disabled={isBusy}>
              Cancel
            </Button>
            <Button onClick={handleAdd} disabled={isBusy || !addText.trim()}>
              Save
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>

      <Dialog open={isRepromptOpen} onOpenChange={setIsRepromptOpen}>
        <DialogContent>
          <DialogHeader>
            <DialogTitle>Reprompt {title}</DialogTitle>
            <DialogDescription>
              Provide guidance to regenerate just this section.
            </DialogDescription>
          </DialogHeader>
          <Textarea
            value={repromptText}
            onChange={(event) => setRepromptText(event.target.value)}
            placeholder="Focus on B2B teams in healthcare..."
            className="min-h-[140px]"
          />
          <DialogFooter>
            <Button variant="outline" onClick={() => setIsRepromptOpen(false)} disabled={isBusy}>
              Cancel
            </Button>
            <Button onClick={handleReprompt} disabled={isBusy}>
              Reprompt
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </Card>
  )
}

export function ProfileSectionEditor({
  analysisId,
  items,
}: {
  analysisId: string
  items: Record<string, any>
}) {
  const replaceSection = useMutation(api.analysisSections.replaceSection)
  const [isRepromptOpen, setIsRepromptOpen] = React.useState(false)
  const [isEditOpen, setIsEditOpen] = React.useState(false)
  const [repromptText, setRepromptText] = React.useState("")
  const [editText, setEditText] = React.useState(JSON.stringify(items, null, 2))
  const [isBusy, setIsBusy] = React.useState(false)

  React.useEffect(() => {
    setEditText(JSON.stringify(items, null, 2))
  }, [items])

  const handleSave = async () => {
    setIsBusy(true)
    try {
      const parsed = JSON.parse(editText)
      await replaceSection({
        analysisId: analysisId as any,
        sectionKey: "profile",
        items: parsed,
        source: "mixed",
      })
      setIsEditOpen(false)
    } finally {
      setIsBusy(false)
    }
  }

  const handleReprompt = async () => {
    setIsBusy(true)
    try {
      const response = await fetch("/api/analysis/reprompt", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          analysisId,
          sectionKey: "profile",
          prompt: repromptText.trim() || undefined,
        }),
      })
      if (!response.ok) {
        const data = await response.json()
        throw new Error(data.error || "Reprompt failed")
      }
      setRepromptText("")
      setIsRepromptOpen(false)
    } finally {
      setIsBusy(false)
    }
  }

  return (
    <Card>
      <CardHeader className="flex flex-row items-center justify-between gap-3">
        <CardTitle className="text-base">Product Profile</CardTitle>
        <div className="flex flex-wrap items-center gap-2">
          <Button variant="outline" size="sm" onClick={() => setIsEditOpen(true)}>
            Edit
          </Button>
          <Button variant="secondary" size="sm" onClick={() => setIsRepromptOpen(true)}>
            Reprompt
          </Button>
        </div>
      </CardHeader>
      <CardContent className="space-y-2 text-sm text-muted-foreground">
        <div>
          <span className="font-medium text-foreground">Product:</span>{" "}
          {items.productName || "Not set"}
        </div>
        <div>
          <span className="font-medium text-foreground">Tagline:</span>{" "}
          {items.tagline || "Not set"}
        </div>
        <div>
          <span className="font-medium text-foreground">Category:</span>{" "}
          {items.category || "Not set"}
        </div>
        <div>
          <span className="font-medium text-foreground">Positioning:</span>{" "}
          {items.positioning || "Not set"}
        </div>
      </CardContent>

      <Dialog open={isEditOpen} onOpenChange={setIsEditOpen}>
        <DialogContent>
          <DialogHeader>
            <DialogTitle>Edit Profile</DialogTitle>
            <DialogDescription>Update the profile JSON.</DialogDescription>
          </DialogHeader>
          <Textarea
            value={editText}
            onChange={(event) => setEditText(event.target.value)}
            className="min-h-[200px]"
          />
          <DialogFooter>
            <Button variant="outline" onClick={() => setIsEditOpen(false)} disabled={isBusy}>
              Cancel
            </Button>
            <Button onClick={handleSave} disabled={isBusy}>
              Save
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>

      <Dialog open={isRepromptOpen} onOpenChange={setIsRepromptOpen}>
        <DialogContent>
          <DialogHeader>
            <DialogTitle>Reprompt Profile</DialogTitle>
            <DialogDescription>
              Provide guidance to regenerate the profile.
            </DialogDescription>
          </DialogHeader>
          <Textarea
            value={repromptText}
            onChange={(event) => setRepromptText(event.target.value)}
            className="min-h-[140px]"
          />
          <DialogFooter>
            <Button variant="outline" onClick={() => setIsRepromptOpen(false)} disabled={isBusy}>
              Cancel
            </Button>
            <Button onClick={handleReprompt} disabled={isBusy}>
              Reprompt
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </Card>
  )
}