import { useState } from 'react'
import { PlantIcon } from './PlantIcon'
import { LotStateChip, SeedLotList } from './SeedLotList'
import { SourceLink } from './SourceLink'
import { cardActionClass, cardDangerClass } from '@/components/ui/cardActions'
import { CATEGORY_LABELS, isBuiltin, type Plant } from '@/lib/plants'
import { formatQuantity, summarizeLots, type SeedLot } from '@/lib/seedLots'
import { formatSpacing, type UnitPref } from '@/lib/units'

/**
 * One catalog plant as a card: icon tile tinted with the plant's color, name,
 * category + mature spacing (unit-aware), and actions. Built-ins are badged and
 * offer only "Duplicate" (they're read-only); own plants add Edit/Delete.
 */
export function PlantCard({
  plant,
  unit,
  lots,
  onEdit,
  onDelete,
  onDuplicate,
  onAddLot,
  onEditLot,
  onDeleteLot,
}: {
  plant: Plant
  unit: UnitPref
  /** This plant's purchases. A lot may reference a built-in, so even a built-in
   *  card can carry seed. */
  lots: SeedLot[]
  onEdit: () => void
  onDelete: () => void
  onDuplicate: () => void
  onAddLot: () => void
  onEditLot: (lot: SeedLot) => void
  onDeleteLot: (lot: SeedLot) => void
}) {
  const builtin = isBuiltin(plant)
  const [showLots, setShowLots] = useState(false)
  const summary = summarizeLots(lots)

  return (
    <div className="flex flex-col rounded-xl border border-border bg-surface">
      <div className="flex items-start gap-3 p-4">
        <PlantIcon color={plant.color} icon={plant.icon} className="h-11 w-11 rounded-lg text-2xl" />
        <div className="min-w-0 flex-1">
          <div className="flex items-center gap-2">
            <h3 className="truncate font-semibold text-fg">{plant.name}</h3>
            {builtin && (
              <span className="shrink-0 rounded bg-border/60 px-1.5 py-0.5 text-[10px] font-medium uppercase tracking-wide text-muted">
                Built-in
              </span>
            )}
          </div>
          <p className="mt-0.5 text-sm text-muted">
            {CATEGORY_LABELS[plant.category]} · {formatSpacing(plant.spacingCm, unit)} spacing
          </p>
          {(plant.vendor || plant.sourceUrl) && (
            <p className="mt-0.5 flex flex-wrap items-center gap-1.5 text-xs text-muted">
              {plant.vendor && <span>{plant.vendor}</span>}
              <SourceLink url={plant.sourceUrl} />
            </p>
          )}
          {plant.notes && <p className="mt-1 line-clamp-2 text-xs text-muted">{plant.notes}</p>}
        </div>
        <span
          className="mt-1 h-4 w-4 shrink-0 rounded-full border border-black/10 dark:border-white/10"
          style={{ backgroundColor: plant.color }}
          title={plant.color}
        />
      </div>
      {showLots && (
        <div className="border-t border-border px-3 py-2">
          <SeedLotList lots={lots} canEdit onAdd={onAddLot} onEdit={onEditLot} onDelete={onDeleteLot} />
        </div>
      )}

      <div className="flex items-center justify-end gap-1 border-t border-border px-2 py-1.5">
        {/* The seed count sits with the actions rather than in the body: it's
            what you scan for down a list of twenty packets, so it wants a fixed
            place on the card. */}
        <button
          type="button"
          onClick={() => setShowLots((v) => !v)}
          className={`${cardActionClass} mr-auto flex items-center gap-1.5`}
          aria-expanded={showLots}
        >
          {lots.length === 0 ? (
            <span className="text-muted">No seed</span>
          ) : (
            <>
              <span className="tabular-nums">
                {formatQuantity(summary.remaining)}
                {summary.unit ? ` ${summary.unit}` : ''} left
              </span>
              <LotStateChip state={summary.state} />
            </>
          )}
        </button>
        <button type="button" onClick={onDuplicate} className={cardActionClass}>
          Duplicate
        </button>
        {!builtin && (
          <button type="button" onClick={onEdit} className={cardActionClass}>
            Edit
          </button>
        )}
        {!builtin && (
          <button type="button" onClick={onDelete} className={cardDangerClass}>
            Delete
          </button>
        )}
      </div>
    </div>
  )
}