'use client'

import { useEffect, useRef, useState } from 'react'
import { Button } from '@/components/ui/button'
import type { Hole, Player } from '@/app/(app)/rounds/[id]/scorecard/page'

type Props = {
  open: boolean
  hole: Hole | null
  player: Player | null
  currentStrokes: number | null
  onSave: (strokes: number) => void
  onClose: () => void
}

export function ScoreEntrySheet({ open, hole, player, currentStrokes, onSave, onClose }: Props) {
  const [strokes, setStrokes] = useState<number>(currentStrokes ?? hole?.par ?? 4)
  const [editingNumber, setEditingNumber] = useState(false)
  const inputRef = useRef<HTMLInputElement>(null)

  // Reset when a new entry opens
  useEffect(() => {
    if (open) {
      setStrokes(currentStrokes ?? hole?.par ?? 4)
      setEditingNumber(false)
    }
  }, [open, hole?.id, player?.user_id])

  useEffect(() => {
    if (editingNumber) inputRef.current?.select()
  }, [editingNumber])

  // Lock body scroll when open
  useEffect(() => {
    document.body.style.overflow = open ? 'hidden' : ''
    return () => { document.body.style.overflow = '' }
  }, [open])

  if (!hole || !player) return null

  const par = hole.par
  const vsPar = strokes - par

  return (
    <>
      {/* Backdrop */}
      <div
        className={`fixed inset-0 z-40 bg-black/50 transition-opacity duration-200 ${
          open ? 'opacity-100' : 'pointer-events-none opacity-0'
        }`}
        onClick={onClose}
      />

      {/* Sheet */}
      <div
        className={`fixed bottom-0 left-0 right-0 z-50 rounded-t-2xl bg-background pb-safe transition-transform duration-300 ${
          open ? 'translate-y-0' : 'translate-y-full'
        }`}
      >
        {/* Handle */}
        <div className="flex justify-center pt-3 pb-1">
          <div className="h-1 w-10 rounded-full bg-muted-foreground/30" />
        </div>

        {/* Player + hole info */}
        <div className="flex items-center justify-between px-6 py-3 border-b">
          <div>
            <div className="font-semibold">{player.profile?.display_name}</div>
            <div className="text-sm text-muted-foreground">
              Hole {hole.hole_number} · Par {par} · SI {hole.stroke_index}
            </div>
          </div>
          <div
            className={`text-sm font-bold ${
              vsPar < 0 ? 'text-red-500' : vsPar > 0 ? 'text-muted-foreground' : 'text-foreground'
            }`}
          >
            {vsPar === 0 ? 'Par' : vsPar > 0 ? `+${vsPar}` : vsPar}
          </div>
        </div>

        {/* Score input */}
        <div className="flex items-center justify-center gap-8 py-8">
          {/* Minus */}
          <button
            onClick={() => setStrokes(Math.max(1, strokes - 1))}
            className="flex h-14 w-14 items-center justify-center rounded-full border-2 border-border text-2xl font-light hover:bg-muted active:scale-95"
          >
            −
          </button>

          {/* Score display / input */}
          {editingNumber ? (
            <input
              ref={inputRef}
              type="number"
              value={strokes}
              min={1}
              max={20}
              onChange={(e) => setStrokes(Math.max(1, parseInt(e.target.value) || 1))}
              onBlur={() => setEditingNumber(false)}
              className="h-20 w-20 rounded-xl border-2 border-primary bg-background text-center text-4xl font-bold outline-none"
            />
          ) : (
            <button
              onClick={() => setEditingNumber(true)}
              className="flex h-20 w-20 items-center justify-center rounded-xl border-2 border-transparent text-5xl font-bold transition-colors hover:border-primary"
            >
              {strokes}
            </button>
          )}

          {/* Plus */}
          <button
            onClick={() => setStrokes(Math.min(20, strokes + 1))}
            className="flex h-14 w-14 items-center justify-center rounded-full border-2 border-border text-2xl font-light hover:bg-muted active:scale-95"
          >
            +
          </button>
        </div>

        {/* Save */}
        <div className="px-6 pb-8">
          <Button className="w-full text-base h-12" onClick={() => onSave(strokes)}>
            Save
          </Button>
        </div>
      </div>
    </>
  )
}