# Code coverage report for components/LogHabitModal.jsx

# All files / components LogHabitModal.jsx

58.33% Statements 28/48
56.52% Branches 26/46
50% Functions 8/16
64.28% Lines 27/42

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     import { useState, useMemo } from 'react'
    import { motion, AnimatePresence } from 'framer-motion'
    import { X, ChevronLeft, ChevronRight, Check } from 'lucide-react'
    import { format, startOfMonth, endOfMonth, eachDayOfInterval, isSameDay, isFuture, startOfDay, subMonths, addMonths, isToday } from 'date-fns'
    import { ru } from 'date-fns/locale'
    import clsx from 'clsx'

    export default function LogHabitModal({ open, onClose, habit, completedDates = [], onLogDate }) {
      const [currentMonth, setCurrentMonth] = useState(new Date())
      const [selectedDate, setSelectedDate] = useState(null)
      const [isLogging, setIsLogging] = useState(false)

      const days = useMemo(() => {
        const start = startOfMonth(currentMonth)
        const end = endOfMonth(currentMonth)
        return eachDayOfInterval({ start, end })
      }, [currentMonth])

      // Convert completedDates to a Set for faster lookup
      const completedSet = useMemo(() => {
        const set = new Set()
        completedDates.forEach(d => {
          const dateStr = typeof d === 'string' ? d.split('T')[0] : format(d, 'yyyy-MM-dd')
          set.add(dateStr)
        })
        return set
      }, [completedDates])

      const isDateCompleted = (date) => {
        return completedSet.has(format(date, 'yyyy-MM-dd'))
      }

      const handleDateClick = (date) => {
        if (isFuture(startOfDay(date))) return
        if (isDateCompleted(date)) return
        setSelectedDate(date)
      }

      const handleConfirm = async () => {
        if (!selectedDate) return
        setIsLogging(true)
        try {
          await onLogDate(habit.id, format(selectedDate, 'yyyy-MM-dd'))
          onClose()
        } catch (error) {
          console.error('Failed to log habit:', error)
        } finally {
          setIsLogging(false)
        }
      }

      // Get first day of week offset
      const firstDayOfMonth = startOfMonth(currentMonth)
      const startOffset = (firstDayOfMonth.getDay() + 6) % 7 // Monday = 0

      if (!open) return null

      return (
        <AnimatePresence>
          <motion.div
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            exit={{ opacity: 0 }}
            className="fixed inset-0 bg-black/50 backdrop-blur-sm z-50 flex items-center justify-center p-4"
            onClick={onClose}
          >
            <motion.div
              initial={{ opacity: 0, scale: 0.95, y: 20 }}
              animate={{ opacity: 1, scale: 1, y: 0 }}
              exit={{ opacity: 0, scale: 0.95, y: 20 }}
              onClick={e => e.stopPropagation()}
              className="bg-white dark:bg-gray-900 rounded-3xl shadow-2xl w-full max-w-sm overflow-hidden"
            >
              {/* Header */}
              <div className="p-5 border-b border-gray-100 dark:border-gray-800 flex items-center justify-between">
                <div className="flex items-center gap-3">
                  <div
                    className="w-10 h-10 rounded-xl flex items-center justify-center text-xl"
                    style={{ backgroundColor: habit?.color + '20' }}
                  >
                    {habit?.icon || '✨'}
                  </div>
                  <div>
                    <h2 className="text-lg font-display font-bold text-gray-900 dark:text-white">Отметить привычку</h2>
                    <p className="text-sm text-gray-500 dark:text-gray-400 dark:text-gray-500">{habit?.name}</p>
                  </div>
                </div>
                <button
                  onClick={onClose}
                  className="p-2 text-gray-400 dark:text-gray-500 hover:text-gray-600 hover:bg-gray-100 dark:hover:bg-gray-800 dark:bg-gray-800 rounded-xl transition-colors"
                >
                  <X size={20} />
                </button>
              </div>

              {/* Calendar */}
              <div className="p-5">
                {/* Month navigation */}
                <div className="flex items-center justify-between mb-4">
                  <button
                    onClick={() => setCurrentMonth(m => subMonths(m, 1))}
                    className="p-2 text-gray-400 dark:text-gray-500 hover:text-gray-600 hover:bg-gray-100 dark:hover:bg-gray-800 dark:bg-gray-800 rounded-xl transition-colors"
                  >
                    <ChevronLeft size={20} />
                  </button>
                  <span className="font-semibold text-gray-900 dark:text-white capitalize">
                    {format(currentMonth, 'LLLL yyyy', { locale: ru })}
                  </span>
                  <button
                    onClick={() => setCurrentMonth(m => addMonths(m, 1))}
                    disabled={isSameDay(startOfMonth(currentMonth), startOfMonth(new Date()))}
                    className={clsx(
                      "p-2 rounded-xl transition-colors",
                      isSameDay(startOfMonth(currentMonth), startOfMonth(new Date()))
                        ? "text-gray-200 cursor-not-allowed"
                        : "text-gray-400 dark:text-gray-500 hover:text-gray-600 hover:bg-gray-100 dark:hover:bg-gray-800 dark:bg-gray-800"
                    )}
                  >
                    <ChevronRight size={20} />
                  </button>
                </div>

                {/* Weekday headers */}
                <div className="grid grid-cols-7 gap-1 mb-2">
                  {['Пн', 'Вт', 'Ср', 'Чт', 'Пт', 'Сб', 'Вс'].map(day => (
                    <div key={day} className="text-center text-xs font-medium text-gray-400 dark:text-gray-500 py-2">
                      {day}
                    </div>
                  ))}
                </div>

                {/* Calendar grid */}
                <div className="grid grid-cols-7 gap-1">
                  {/* Empty cells for offset */}
                  {Array.from({ length: startOffset }).map((_, i) => (
                    <div key={`offset-${i}`} className="aspect-square" />
                  ))}

                  {/* Days */}
                  {days.map(day => {
                    const completed = isDateCompleted(day)
                    const future = isFuture(startOfDay(day))
                    const selected = selectedDate && isSameDay(day, selectedDate)
                    const today = isToday(day)

                    return (
                      <button
                        key={day.toISOString()}
                        onClick={() => handleDateClick(day)}
                        disabled={future || completed}
                        className={clsx(
                          "aspect-square rounded-xl flex items-center justify-center text-sm font-medium transition-all",
                          future && "text-gray-200 cursor-not-allowed",
                          completed && "bg-green-100 text-green-600 cursor-default",
                          selected && !completed && "bg-primary-500 text-white shadow-lg shadow-primary-500/30",
                          !future && !completed && !selected && "text-gray-700 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-800 dark:bg-gray-800",
                          today && !selected && !completed && "ring-2 ring-primary-200"
                        )}
                      >
                        {completed ? (
                          <Check size={16} className="text-green-600" />
                        ) : (
                          format(day, 'd')
                        )}
                      </button>
                    )
                  })}
                </div>

                {/* Selected date info */}
                {selectedDate && (
                  <motion.div
                    initial={{ opacity: 0, y: 10 }}
                    animate={{ opacity: 1, y: 0 }}
                    className="mt-4 p-3 bg-primary-50 rounded-xl text-center"
                  >
                    <p className="text-sm text-primary-700">
                      Выбрано: <span className="font-semibold">{format(selectedDate, 'd MMMM yyyy', { locale: ru })}</span>
                    </p>
                  </motion.div>
                )}
              </div>

              {/* Actions */}
              <div className="p-5 pt-0 flex gap-3">
                <button
                  onClick={onClose}
                  className="flex-1 py-3 px-4 rounded-xl font-semibold text-gray-700 dark:text-gray-300 bg-gray-100 dark:bg-gray-800 hover:bg-gray-200 transition-colors"
                >
                  Отмена
                </button>
                <button
                  onClick={handleConfirm}
                  disabled={!selectedDate || isLogging}
                  className={clsx(
                    "flex-1 py-3 px-4 rounded-xl font-semibold text-white transition-all",
                    selectedDate && !isLogging
                      ? "bg-primary-500 hover:bg-primary-600 shadow-lg shadow-primary-500/30"
                      : "bg-gray-300 cursor-not-allowed"
                  )}
                >
                  {isLogging ? 'Сохранение...' : 'Отметить'}
                </button>
              </div>
            </motion.div>
          </motion.div>
        </AnimatePresence>
      )
    }