import { useState } from 'react'
import apiClient from '../api/client'
import MealTypeSelect from './MealTypeSelect'
import { parseDecimal } from '../utils/numbers'

export default function EditLogModal({ log, onSaved, onClose }) {
  const [amountG, setAmountG] = useState(String(log.amount_g))
  const [mealType, setMealType] = useState(log.meal_type)
  const [error, setError] = useState('')
  const [isSubmitting, setIsSubmitting] = useState(false)

  async function handleSubmit(e) {
    e.preventDefault()
    setError('')
    setIsSubmitting(true)
    try {
      await apiClient.put(`/api/logs/${log.id}`, {
        amount_g: parseDecimal(amountG),
        meal_type: mealType,
      })
      onSaved()
    } catch {
      setError('Eintrag konnte nicht gespeichert werden.')
    } finally {
      setIsSubmitting(false)
    }
  }

  return (
    <div className="fixed inset-0 z-50 flex items-end justify-center bg-black/50 sm:items-center">
      <div className="w-full max-w-sm rounded-t-2xl bg-white p-6 sm:rounded-2xl dark:bg-gray-800">
        <h2 className="text-lg font-semibold text-gray-900 dark:text-gray-50">{log.name}</h2>
        <p className="mb-4 text-sm text-gray-500 dark:text-gray-400">Eintrag bearbeiten</p>

        <form onSubmit={handleSubmit} className="space-y-4">
          <MealTypeSelect value={mealType} onChange={setMealType} />
          <div>
            <label className="mb-1 block text-sm font-medium text-gray-700 dark:text-gray-300">
              Menge (Gramm)
            </label>
            <input
              type="text"
              inputMode="decimal"
              value={amountG}
              onChange={(e) => setAmountG(e.target.value)}
              required
              autoFocus
              className="w-full rounded-lg border border-gray-300 px-3 py-2 text-base text-gray-900 focus:border-emerald-500 focus:outline-none dark:border-gray-600 dark:bg-gray-700 dark:text-gray-50"
            />
          </div>
          {error && <p className="text-sm text-red-600 dark:text-red-400">{error}</p>}
          <div className="flex gap-3">
            <button
              type="button"
              onClick={onClose}
              className="flex-1 rounded-lg border border-gray-300 py-2.5 text-base font-medium text-gray-700 dark:border-gray-600 dark:text-gray-300"
            >
              Abbrechen
            </button>
            <button
              type="submit"
              disabled={isSubmitting}
              className="flex-1 rounded-lg bg-emerald-600 py-2.5 text-base font-medium text-white active:bg-emerald-700 disabled:opacity-60"
            >
              {isSubmitting ? 'Speichern…' : 'Speichern'}
            </button>
          </div>
        </form>
      </div>
    </div>
  )
}