import { useState, useEffect } from 'react'
import { Target, Plus, Pencil, Trash2, TrendingUp, Calendar } from 'lucide-react'
import { api } from '../utils/api'
import dayjs from 'dayjs'
import 'dayjs/locale/de'
dayjs.locale('de')

// Goal Categories
const GOAL_CATEGORIES = {
  body: { label: 'Körper', icon: '📉', color: '#D85A30', description: 'Gewicht, Körperfett, Muskelmasse' },
  training: { label: 'Training', icon: '🏋️', color: '#378ADD', description: 'Kraft, Frequenz, Performance' },
  nutrition: { label: 'Ernährung', icon: '🍎', color: '#1D9E75', description: 'Kalorien, Makros, Essgewohnheiten' },
  recovery: { label: 'Erholung', icon: '😴', color: '#7B68EE', description: 'Schlaf, Regeneration, Ruhetage' },
  health: { label: 'Gesundheit', icon: '❤️', color: '#E67E22', description: 'Vitalwerte, Blutdruck, HRV' },
  other: { label: 'Sonstiges', icon: '📌', color: '#94A3B8', description: 'Weitere Ziele' }
}

// Priority Levels
const PRIORITY_LEVELS = {
  1: { label: 'Hoch', stars: '⭐⭐⭐', color: 'var(--accent)' },
  2: { label: 'Mittel', stars: '⭐⭐', color: '#94A3B8' },
  3: { label: 'Niedrig', stars: '⭐', color: '#CBD5E1' }
}

// Auto-assign category based on goal_type
const getCategoryForGoalType = (goalType) => {
  const mapping = {
    // Body composition
    'weight': 'body',
    'body_fat': 'body',
    'lean_mass': 'body',

    // Training
    'strength': 'training',
    'flexibility': 'training',
    'training_frequency': 'training',

    // Health/Vitals
    'vo2max': 'health',
    'rhr': 'health',
    'bp': 'health',
    'hrv': 'health',

    // Recovery
    'sleep_quality': 'recovery',
    'sleep_duration': 'recovery',
    'rest_days': 'recovery',

    // Nutrition
    'calories': 'nutrition',
    'protein': 'nutrition',
    'healthy_eating': 'nutrition'
  }

  return mapping[goalType] || 'other'
}

export default function GoalsPage() {
  const [goalMode, setGoalMode] = useState(null)
  const [focusAreas, setFocusAreas] = useState(null)
  const [focusEditing, setFocusEditing] = useState(false)
  const [focusTemp, setFocusTemp] = useState({
    weight_loss_pct: 0,
    muscle_gain_pct: 0,
    strength_pct: 0,
    endurance_pct: 0,
    flexibility_pct: 0,
    health_pct: 0
  })
  const [goals, setGoals] = useState([]) // Kept for backward compat
  const [groupedGoals, setGroupedGoals] = useState({}) // Category-grouped goals
  const [goalTypes, setGoalTypes] = useState([]) // Dynamic from DB (Phase 1.5)
  const [goalTypesMap, setGoalTypesMap] = useState({}) // For quick lookup
  const [showGoalForm, setShowGoalForm] = useState(false)
  const [editingGoal, setEditingGoal] = useState(null)
  const [showProgressModal, setShowProgressModal] = useState(false)
  const [progressGoal, setProgressGoal] = useState(null)
  const [progressEntries, setProgressEntries] = useState([])
  const [progressFormData, setProgressFormData] = useState({
    date: new Date().toISOString().split('T')[0],
    value: '',
    note: ''
  })
  const [loading, setLoading] = useState(true)
  const [error, setError] = useState(null)
  const [toast, setToast] = useState(null)

  // Form state
  const [formData, setFormData] = useState({
    goal_type: 'weight',
    is_primary: false,
    category: 'body',
    priority: 2,
    target_value: '',
    unit: 'kg',
    target_date: '',
    name: '',
    description: ''
  })

  useEffect(() => {
    loadData()
  }, [])

  const loadData = async () => {
    setLoading(true)
    setError(null)
    try {
      const [modeData, goalsData, groupedData, typesData, focusData] = await Promise.all([
        api.getGoalMode(),
        api.listGoals(),
        api.listGoalsGrouped(), // v2.1: Load grouped by category
        api.listGoalTypeDefinitions(), // Phase 1.5: Load from DB
        api.getFocusAreas() // v2.0: Load focus areas
      ])
      setGoalMode(modeData.goal_mode)
      setGoals(goalsData)
      setGroupedGoals(groupedData)

      // Ensure all focus fields are present and numeric
      const sanitizedFocus = {
        weight_loss_pct: focusData?.weight_loss_pct ?? 0,
        muscle_gain_pct: focusData?.muscle_gain_pct ?? 0,
        strength_pct: focusData?.strength_pct ?? 0,
        endurance_pct: focusData?.endurance_pct ?? 0,
        flexibility_pct: focusData?.flexibility_pct ?? 0,
        health_pct: focusData?.health_pct ?? 0,
        custom: focusData?.custom,
        updated_at: focusData?.updated_at
      }

      setFocusAreas(sanitizedFocus)
      setFocusTemp(sanitizedFocus)

      // Convert types array to map for quick lookup
      const typesMap = {}
      if (typesData && Array.isArray(typesData)) {
        typesData.forEach(type => {
          typesMap[type.type_key] = {
            label: type.label_de,
            unit: type.unit,
            icon: type.icon || '📊',
            category: type.category,
            is_system: type.is_system
          }
        })
      }

      setGoalTypes(typesData || [])
      setGoalTypesMap(typesMap)
    } catch (err) {
      console.error('Failed to load goals:', err)
      setError(`Fehler beim Laden: ${err.message || err.toString()}`)
    } finally {
      setLoading(false)
    }
  }

  const showToast = (message, duration = 2000) => {
    setToast(message)
    setTimeout(() => setToast(null), duration)
  }

  const handleGoalModeChange = async (newMode) => {
    try {
      await api.updateGoalMode(newMode)
      setGoalMode(newMode)
      showToast('✓ Trainingsmodus aktualisiert')
    } catch (err) {
      console.error('Failed to update goal mode:', err)
      setError('Fehler beim Aktualisieren des Trainingsmodus')
    }
  }

  const handleCreateGoal = () => {
    if (goalTypes.length === 0) {
      setError('Keine Goal Types verfügbar. Bitte Admin kontaktieren.')
      return
    }
    setEditingGoal(null)
    const firstType = goalTypes[0].type_key
    setFormData({
      goal_type: firstType,
      is_primary: goals.length === 0, // First goal is primary by default
      category: getCategoryForGoalType(firstType),  // Auto-assign based on type
      priority: 2,
      target_value: '',
      unit: goalTypesMap[firstType]?.unit || 'kg',
      target_date: '',
      name: '',
      description: ''
    })
    setShowGoalForm(true)
  }

  const handleEditGoal = (goal) => {
    setEditingGoal(goal.id)
    setFormData({
      goal_type: goal.goal_type,
      is_primary: goal.is_primary,
      category: goal.category || 'other',
      priority: goal.priority || 2,
      target_value: goal.target_value,
      unit: goal.unit,
      target_date: goal.target_date || '',
      name: goal.name || '',
      description: goal.description || ''
    })
    setShowGoalForm(true)
  }

  const handleGoalTypeChange = (type) => {
    setFormData(f => ({
      ...f,
      goal_type: type,
      unit: goalTypesMap[type]?.unit || 'unit',
      category: getCategoryForGoalType(type)  // Auto-assign category
    }))
  }

  const handleSaveGoal = async () => {
    if (!formData.target_value) {
      setError('Bitte Zielwert eingeben')
      return
    }

    try {
      const data = {
        goal_type: formData.goal_type,
        is_primary: formData.is_primary,
        category: formData.category,
        priority: formData.priority,
        target_value: parseFloat(formData.target_value),
        unit: formData.unit,
        target_date: formData.target_date || null,
        name: formData.name || null,
        description: formData.description || null
      }

      console.log('[DEBUG] Saving goal:', { editingGoal, data })

      if (editingGoal) {
        await api.updateGoal(editingGoal, data)
        showToast('✓ Ziel aktualisiert')
      } else {
        await api.createGoal(data)
        showToast('✓ Ziel erstellt')
      }

      await loadData()
      setShowGoalForm(false)
      setEditingGoal(null)
    } catch (err) {
      console.error('Failed to save goal:', err)
      setError(err.message || 'Fehler beim Speichern')
    }
  }

  const handleDeleteGoal = async (goalId) => {
    if (!confirm('Ziel wirklich löschen?')) return

    try {
      await api.deleteGoal(goalId)
      showToast('✓ Ziel gelöscht')
      await loadData()
    } catch (err) {
      console.error('Failed to delete goal:', err)
      setError('Fehler beim Löschen')
    }
  }

  const handleOpenProgressModal = async (goal) => {
    setProgressGoal(goal)
    setProgressFormData({
      date: new Date().toISOString().split('T')[0],
      value: goal.current_value || '',
      note: ''
    })

    // Load progress history
    try {
      const entries = await api.listGoalProgress(goal.id)
      setProgressEntries(entries)
    } catch (err) {
      console.error('Failed to load progress:', err)
      setProgressEntries([])
    }

    setShowProgressModal(true)
    setError(null)
  }

  const handleSaveProgress = async () => {
    if (!progressFormData.value || !progressFormData.date) {
      setError('Bitte Datum und Wert eingeben')
      return
    }

    try {
      const data = {
        date: progressFormData.date,
        value: parseFloat(progressFormData.value),
        note: progressFormData.note || null
      }

      await api.createGoalProgress(progressGoal.id, data)
      showToast('✓ Fortschritt erfasst')

      // Reload progress history
      const entries = await api.listGoalProgress(progressGoal.id)
      setProgressEntries(entries)

      // Reset form
      setProgressFormData({
        date: new Date().toISOString().split('T')[0],
        value: '',
        note: ''
      })

      // Reload goals to update current_value
      await loadData()
      setError(null)
    } catch (err) {
      console.error('Failed to save progress:', err)
      setError(err.message || 'Fehler beim Speichern')
    }
  }

  const handleDeleteProgress = async (progressId) => {
    if (!confirm('Eintrag wirklich löschen?')) return

    try {
      await api.deleteGoalProgress(progressGoal.id, progressId)
      showToast('✓ Eintrag gelöscht')

      // Reload progress history
      const entries = await api.listGoalProgress(progressGoal.id)
      setProgressEntries(entries)

      // Reload goals to update current_value
      await loadData()
    } catch (err) {
      console.error('Failed to delete progress:', err)
      setError('Fehler beim Löschen')
    }
  }

  const getProgressColor = (progress) => {
    if (progress >= 100) return 'var(--accent)'
    if (progress >= 75) return '#1D9E75'
    if (progress >= 50) return '#378ADD'
    if (progress >= 25) return '#E67E22'
    return '#D85A30'
  }

  if (loading) {
    return (
      <div className="page">
        <div style={{ textAlign: 'center', padding: '40px' }}>
          <div className="spinner"></div>
        </div>
      </div>
    )
  }

  return (
    <div className="page">
      <div className="page-header">
        <h1><Target size={24} /> Ziele</h1>
      </div>

      {error && (
        <div className="card" style={{ background: '#FEF2F2', border: '1px solid #FCA5A5', marginBottom: 16 }}>
          <p style={{ color: '#DC2626', margin: 0 }}>{error}</p>
        </div>
      )}

      {toast && (
        <div style={{
          position: 'fixed',
          top: 16,
          right: 16,
          background: 'var(--accent)',
          color: 'white',
          padding: '12px 20px',
          borderRadius: 8,
          boxShadow: '0 4px 12px rgba(0,0,0,0.15)',
          zIndex: 1000
        }}>
          {toast}
        </div>
      )}

      {/* Focus Areas (v2.0) */}
      <div className="card" style={{ marginBottom: 16 }}>
        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 8 }}>
          <h2 style={{ margin: 0 }}>🎯 Fokus-Bereiche</h2>
          {!focusEditing && focusAreas && (
            <button
              className="btn-secondary"
              onClick={() => {
                setFocusTemp(focusAreas) // Sync temp state before editing
                setFocusEditing(true)
              }}
              style={{ padding: '6px 12px' }}
            >
              <Pencil size={14} /> Anpassen
            </button>
          )}
        </div>
        <p style={{ color: 'var(--text2)', fontSize: 14, marginBottom: 16 }}>
          Setze relative Gewichte für deine Trainingsziele. Das System berechnet automatisch die Prozentanteile.
          {focusAreas && !focusAreas.custom && (
            <span style={{ display: 'block', marginTop: 4, fontStyle: 'italic' }}>
              ℹ️ Aktuell abgeleitet aus Trainingsmodus "{goalMode}" - klicke "Anpassen" für individuelle Gewichtung
            </span>
          )}
        </p>

        {focusEditing ? (
          <>
            {/* Sliders */}
            <div style={{ display: 'flex', flexDirection: 'column', gap: 20, marginBottom: 20 }}>
              {[
                { key: 'weight_loss_pct', label: 'Fettabbau', icon: '📉', color: '#D85A30' },
                { key: 'muscle_gain_pct', label: 'Muskelaufbau', icon: '💪', color: '#378ADD' },
                { key: 'strength_pct', label: 'Kraftsteigerung', icon: '🏋️', color: '#7B68EE' },
                { key: 'endurance_pct', label: 'Ausdauer', icon: '🏃', color: '#1D9E75' },
                { key: 'flexibility_pct', label: 'Beweglichkeit', icon: '🤸', color: '#E67E22' },
                { key: 'health_pct', label: 'Gesundheit', icon: '❤️', color: '#F59E0B' }
              ].map(area => {
                const rawValue = Number(focusTemp[area.key]) || 0
                const weight = Math.round(rawValue / 10)
                const sum = Object.entries(focusTemp)
                  .filter(([k]) => k.endsWith('_pct'))
                  .reduce((acc, [k, v]) => acc + (Number(v) || 0), 0)
                const actualPercent = sum > 0 ? Math.round(rawValue / sum * 100) : 0

                return (
                  <div key={area.key}>
                    <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 8 }}>
                      <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
                        <span style={{ fontSize: 20 }}>{area.icon}</span>
                        <span style={{ fontWeight: 500 }}>{area.label}</span>
                      </div>
                      <span style={{
                        fontSize: 16,
                        fontWeight: 600,
                        color: area.color,
                        minWidth: 80,
                        textAlign: 'right'
                      }}>
                        {weight} → {actualPercent}%
                      </span>
                    </div>
                    <input
                      type="range"
                      min="0"
                      max="10"
                      step="1"
                      value={weight}
                      onChange={e => setFocusTemp(f => ({ ...f, [area.key]: parseInt(e.target.value) * 10 }))}
                      style={{
                        width: '100%',
                        height: 8,
                        borderRadius: 4,
                        background: `linear-gradient(to right, ${area.color} 0%, ${area.color} ${weight * 10}%, var(--border) ${weight * 10}%, var(--border) 100%)`,
                        outline: 'none',
                        cursor: 'pointer'
                      }}
                    />
                  </div>
                )
              })}
            </div>

            {/* Action Buttons */}
            <div style={{ display: 'flex', gap: 12 }}>
              <button
                className="btn-primary"
                onClick={async () => {
                  // Calculate sum (filter out NaN/undefined)
                  const sum = Object.entries(focusTemp)
                    .filter(([k]) => k.endsWith('_pct'))
                    .reduce((acc, [k, v]) => acc + (Number(v) || 0), 0)

                  if (sum === 0 || isNaN(sum)) {
                    setError('Mindestens ein Bereich muss gewichtet sein')
                    return
                  }

                  // Normalize to percentages (ensure no NaN values)
                  const normalized = {
                    weight_loss_pct: Math.round((Number(focusTemp.weight_loss_pct) || 0) / sum * 100),
                    muscle_gain_pct: Math.round((Number(focusTemp.muscle_gain_pct) || 0) / sum * 100),
                    strength_pct: Math.round((Number(focusTemp.strength_pct) || 0) / sum * 100),
                    endurance_pct: Math.round((Number(focusTemp.endurance_pct) || 0) / sum * 100),
                    flexibility_pct: Math.round((Number(focusTemp.flexibility_pct) || 0) / sum * 100),
                    health_pct: Math.round((Number(focusTemp.health_pct) || 0) / sum * 100)
                  }

                  // Ensure sum is exactly 100 (adjust largest value if needed due to rounding)
                  const normalizedSum = Object.values(normalized).reduce((a, b) => a + b, 0)
                  if (normalizedSum !== 100) {
                    const largest = Object.entries(normalized).reduce((max, [k, v]) => v > max[1] ? [k, v] : max, ['', 0])
                    normalized[largest[0]] += (100 - normalizedSum)
                  }

                  try {
                    await api.updateFocusAreas(normalized)
                    showToast('✓ Fokus-Bereiche aktualisiert')
                    await loadData()
                    setFocusEditing(false)
                    setError(null)
                  } catch (err) {
                    setError(err.message || 'Fehler beim Speichern')
                  }
                }}
                style={{ flex: 1 }}
              >
                Speichern
              </button>
              <button
                className="btn-secondary"
                onClick={() => {
                  setFocusTemp(focusAreas)
                  setFocusEditing(false)
                  setError(null)
                }}
                style={{ flex: 1 }}
              >
                Abbrechen
              </button>
            </div>
          </>
        ) : focusAreas && (
          /* Display Mode */
          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(150px, 1fr))', gap: 12 }}>
            {[
              { key: 'weight_loss_pct', label: 'Fettabbau', icon: '📉', color: '#D85A30' },
              { key: 'muscle_gain_pct', label: 'Muskelaufbau', icon: '💪', color: '#378ADD' },
              { key: 'strength_pct', label: 'Kraftsteigerung', icon: '🏋️', color: '#7B68EE' },
              { key: 'endurance_pct', label: 'Ausdauer', icon: '🏃', color: '#1D9E75' },
              { key: 'flexibility_pct', label: 'Beweglichkeit', icon: '🤸', color: '#E67E22' },
              { key: 'health_pct', label: 'Gesundheit', icon: '❤️', color: '#F59E0B' }
            ].filter(area => focusAreas[area.key] > 0).map(area => (
              <div
                key={area.key}
                style={{
                  padding: 12,
                  background: 'var(--surface2)',
                  border: '1px solid var(--border)',
                  borderRadius: 8,
                  textAlign: 'center'
                }}
              >
                <div style={{ fontSize: 24, marginBottom: 4 }}>{area.icon}</div>
                <div style={{ fontSize: 12, color: 'var(--text2)', marginBottom: 4 }}>{area.label}</div>
                <div style={{ fontSize: 20, fontWeight: 700, color: area.color }}>{focusAreas[area.key]}%</div>
              </div>
            ))}
          </div>
        )}
      </div>

      {/* Tactical Goals List - Category Grouped */}
      <div className="card">
        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 16 }}>
          <h2 style={{ margin: 0 }}>🎯 Konkrete Ziele</h2>
          <button className="btn-primary" onClick={handleCreateGoal}>
            <Plus size={16} /> Ziel hinzufügen
          </button>
        </div>

        {Object.keys(groupedGoals).length === 0 ? (
          <div style={{ textAlign: 'center', padding: '40px 20px', color: 'var(--text2)' }}>
            <Target size={48} style={{ opacity: 0.3, marginBottom: 16 }} />
            <p>Noch keine Ziele definiert</p>
            <button className="btn-primary" onClick={handleCreateGoal} style={{ marginTop: 16 }}>
              Erstes Ziel erstellen
            </button>
          </div>
        ) : (
          <div style={{ display: 'flex', flexDirection: 'column', gap: 32 }}>
            {Object.entries(GOAL_CATEGORIES).map(([catKey, catInfo]) => {
              const categoryGoals = groupedGoals[catKey] || []
              if (categoryGoals.length === 0) return null

              return (
                <div key={catKey}>
                  {/* Category Header */}
                  <div style={{
                    display: 'flex',
                    alignItems: 'center',
                    gap: 12,
                    marginBottom: 16,
                    paddingBottom: 12,
                    borderBottom: `3px solid ${catInfo.color}`
                  }}>
                    <span style={{ fontSize: 28 }}>{catInfo.icon}</span>
                    <div style={{ flex: 1 }}>
                      <h3 style={{ margin: 0, color: catInfo.color, fontSize: 18 }}>{catInfo.label}</h3>
                      <p style={{ margin: 0, fontSize: 13, color: 'var(--text3)' }}>{catInfo.description}</p>
                    </div>
                    <span style={{
                      background: catInfo.color,
                      color: 'white',
                      padding: '4px 12px',
                      borderRadius: 16,
                      fontSize: 13,
                      fontWeight: 600
                    }}>
                      {categoryGoals.length} {categoryGoals.length === 1 ? 'Ziel' : 'Ziele'}
                    </span>
                  </div>

                  {/* Goals in Category */}
                  <div style={{ display: 'flex', flexDirection: 'column', gap: 12 }}>
                    {categoryGoals.map(goal => {
                      const typeInfo = goalTypesMap[goal.goal_type] || { label_de: goal.goal_type, unit: '', icon: '📊' }
                      const priorityInfo = PRIORITY_LEVELS[goal.priority] || PRIORITY_LEVELS[2]

                      return (
                        <div
                          key={goal.id}
                          className="card"
                          style={{
                            background: 'var(--surface2)',
                            border: `1px solid var(--border)`,
                            borderLeft: `5px solid ${catInfo.color}`
                          }}
                        >
                          <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start', gap: 16 }}>
                            <div style={{ flex: 1 }}>
                              <div style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 8, flexWrap: 'wrap' }}>
                                <span style={{ fontSize: 20 }}>{goal.icon || typeInfo.icon}</span>
                                <span style={{ fontWeight: 600, fontSize: 16 }}>
                                  {goal.name || goal.label_de || typeInfo.label_de || goal.goal_type}
                                </span>
                                <span style={{ fontSize: 16 }} title={priorityInfo.label}>
                                  {priorityInfo.stars}
                                </span>
                                <span style={{
                                  background: goal.status === 'active' ? '#E6F4F1' : '#F3F4F6',
                                  color: goal.status === 'active' ? 'var(--accent)' : 'var(--text2)',
                                  fontSize: 11,
                                  padding: '3px 8px',
                                  borderRadius: 4,
                                  fontWeight: 500
                                }}>
                                  {goal.status === 'active' ? 'AKTIV' : goal.status?.toUpperCase() || 'AKTIV'}
                                </span>
                              </div>

                              <div style={{ display: 'flex', gap: 20, marginBottom: 12, fontSize: 14, flexWrap: 'wrap' }}>
                                <div>
                                  <span style={{ color: 'var(--text2)' }}>Start:</span>{' '}
                                  <strong>{goal.start_value} {goal.unit}</strong>
                                </div>
                                <div>
                                  <span style={{ color: 'var(--text2)' }}>Aktuell:</span>{' '}
                                  <strong>{goal.current_value || '—'} {goal.unit}</strong>
                                </div>
                                <div>
                                  <span style={{ color: 'var(--text2)' }}>Ziel:</span>{' '}
                                  <strong style={{ color: catInfo.color }}>{goal.target_value} {goal.unit}</strong>
                                </div>
                                {goal.target_date && (
                                  <div style={{ color: 'var(--text2)' }}>
                                    <Calendar size={14} style={{ verticalAlign: 'middle', marginRight: 4 }} />
                                    {dayjs(goal.target_date).format('DD.MM.YYYY')}
                                  </div>
                                )}
                              </div>

                              {goal.progress_pct !== null && (
                                <div>
                                  <div style={{
                                    display: 'flex',
                                    justifyContent: 'space-between',
                                    fontSize: 12,
                                    marginBottom: 4,
                                    color: 'var(--text2)'
                                  }}>
                                    <span>Fortschritt</span>
                                    <span style={{ fontWeight: 600, color: 'var(--text1)' }}>{goal.progress_pct}%</span>
                                  </div>
                                  <div style={{
                                    width: '100%',
                                    height: 8,
                                    background: 'var(--surface)',
                                    borderRadius: 4,
                                    overflow: 'hidden'
                                  }}>
                                    <div style={{
                                      width: `${Math.min(100, Math.max(0, goal.progress_pct))}%`,
                                      height: '100%',
                                      background: catInfo.color,
                                      transition: 'width 0.3s ease'
                                    }} />
                                  </div>
                                </div>
                              )}
                            </div>

                            <div style={{ display: 'flex', gap: 8, flexShrink: 0 }}>
                              {/* Progress button only for custom goals (no automatic data source) */}
                              {!goal.source_table && (
                                <button
                                  className="btn-secondary"
                                  onClick={() => handleOpenProgressModal(goal)}
                                  style={{ padding: '6px 12px' }}
                                  title="Fortschritt erfassen"
                                >
                                  <TrendingUp size={14} />
                                </button>
                              )}
                              <button
                                className="btn-secondary"
                                onClick={() => handleEditGoal(goal)}
                                style={{ padding: '6px 12px' }}
                                title="Bearbeiten"
                              >
                                <Pencil size={14} />
                              </button>
                              <button
                                className="btn-secondary"
                                onClick={() => handleDeleteGoal(goal.id)}
                                style={{ padding: '6px 12px', color: '#DC2626' }}
                                title="Löschen"
                              >
                                <Trash2 size={14} />
                              </button>
                            </div>
                          </div>
                        </div>
                      )
                    })}
                  </div>
                </div>
              )
            })}
          </div>
        )}
      </div>

      {/* Goal Form Modal */}
      {showGoalForm && (
        <div style={{
          position: 'fixed',
          top: 0,
          left: 0,
          right: 0,
          bottom: 0,
          background: 'rgba(0,0,0,0.5)',
          display: 'flex',
          alignItems: 'flex-start',
          justifyContent: 'center',
          zIndex: 1000,
          padding: 16,
          paddingTop: 40,
          overflowY: 'auto'
        }}>
          <div className="card" style={{
            maxWidth: 500,
            width: '100%',
            marginBottom: 40
          }}>
            <div className="card-title">
              {editingGoal ? 'Ziel bearbeiten' : 'Neues Ziel'}
            </div>

            {error && (
              <div style={{
                padding: 10,
                background: '#FCEBEB',
                border: '1px solid #D85A30',
                borderRadius: 8,
                fontSize: 13,
                color: '#D85A30',
                marginBottom: 16
              }}>
                {error}
              </div>
            )}

            {/* Zieltyp */}
            <div style={{ marginBottom: 16 }}>
              <label style={{
                display: 'block',
                fontSize: 13,
                fontWeight: 600,
                marginBottom: 4,
                color: 'var(--text2)'
              }}>
                Zieltyp
              </label>
              <select
                className="form-input"
                style={{ width: '100%' }}
                value={formData.goal_type}
                onChange={e => handleGoalTypeChange(e.target.value)}
              >
                {goalTypes.map(type => (
                  <option key={type.type_key} value={type.type_key}>
                    {type.icon} {type.label_de}
                  </option>
                ))}
              </select>

              {/* Warning for incomplete goal types */}
              {['bp', 'strength', 'flexibility'].includes(formData.goal_type) && (
                <div style={{
                  marginTop: 8,
                  padding: 8,
                  background: '#FEF3C7',
                  border: '1px solid #F59E0B',
                  borderRadius: 6,
                  fontSize: 12,
                  color: '#92400E'
                }}>
                  ⚠️ Dieser Zieltyp ist aktuell eingeschränkt:
                  {formData.goal_type === 'bp' && ' Blutdruck benötigt 2 Werte (geplant für v2.0)'}
                  {formData.goal_type === 'strength' && ' Keine Datenquelle vorhanden (geplant für v2.0)'}
                  {formData.goal_type === 'flexibility' && ' Keine Datenquelle vorhanden (geplant für v2.0)'}
                </div>
              )}
            </div>

            {/* Name */}
            <div style={{ marginBottom: 16 }}>
              <label style={{
                display: 'block',
                fontSize: 13,
                fontWeight: 500,
                marginBottom: 4,
                color: 'var(--text2)'
              }}>
                Name (optional)
              </label>
              <input
                type="text"
                className="form-input"
                style={{ width: '100%', textAlign: 'left' }}
                value={formData.name}
                onChange={e => setFormData(f => ({ ...f, name: e.target.value }))}
                placeholder="z.B. Sommerfigur 2026"
              />
            </div>

            {/* Zielwert */}
            <div style={{ fontSize: 14, fontWeight: 600, marginBottom: 8, marginTop: 20, color: 'var(--text1)' }}>
              🎯 Zielwert
            </div>
            <div style={{ marginBottom: 16 }}>
              <label style={{
                display: 'block',
                fontSize: 13,
                fontWeight: 500,
                marginBottom: 4,
                color: 'var(--text2)'
              }}>
                Wert *
              </label>
              <div style={{ display: 'flex', gap: 8 }}>
                <input
                  type="number"
                  step="0.01"
                  className="form-input"
                  style={{ flex: 1 }}
                  value={formData.target_value}
                  onChange={e => setFormData(f => ({ ...f, target_value: e.target.value }))}
                  placeholder="Zielwert eingeben"
                />
                <div style={{
                  padding: '8px 16px',
                  background: 'var(--surface2)',
                  border: '1px solid var(--border)',
                  borderRadius: 8,
                  fontSize: 14,
                  fontWeight: 600,
                  color: 'var(--text2)',
                  minWidth: 70,
                  display: 'flex',
                  alignItems: 'center',
                  justifyContent: 'center'
                }}>
                  {formData.unit}
                </div>
              </div>
            </div>

            {/* Zieldatum */}
            <div style={{ marginBottom: 16 }}>
              <label style={{
                display: 'block',
                fontSize: 13,
                fontWeight: 500,
                marginBottom: 4,
                color: 'var(--text2)'
              }}>
                Zieldatum (optional)
              </label>
              <input
                type="date"
                className="form-input"
                style={{ width: '100%', textAlign: 'left' }}
                value={formData.target_date}
                onChange={e => setFormData(f => ({ ...f, target_date: e.target.value }))}
              />
            </div>

            {/* Beschreibung */}
            <div style={{ marginBottom: 16 }}>
              <label style={{
                display: 'block',
                fontSize: 13,
                fontWeight: 500,
                marginBottom: 4,
                color: 'var(--text2)'
              }}>
                Beschreibung (optional)
              </label>
              <textarea
                className="form-input"
                style={{ width: '100%', minHeight: 80, textAlign: 'left' }}
                value={formData.description}
                onChange={e => setFormData(f => ({ ...f, description: e.target.value }))}
                rows={3}
                placeholder="Warum ist dir dieses Ziel wichtig?"
              />
            </div>

            {/* Category & Priority */}
            <div style={{ fontSize: 14, fontWeight: 600, marginBottom: 8, marginTop: 20, color: 'var(--text1)' }}>
              📂 Kategorisierung
            </div>

            <div style={{ display: 'flex', gap: 12, marginBottom: 16 }}>
              {/* Category */}
              <div style={{ flex: 1 }}>
                <label style={{
                  display: 'block',
                  fontSize: 13,
                  fontWeight: 500,
                  marginBottom: 4,
                  color: 'var(--text2)'
                }}>
                  Kategorie *
                </label>
                <select
                  className="form-input"
                  style={{ width: '100%' }}
                  value={formData.category}
                  onChange={e => setFormData(f => ({ ...f, category: e.target.value }))}
                >
                  {Object.entries(GOAL_CATEGORIES).map(([key, info]) => (
                    <option key={key} value={key}>
                      {info.icon} {info.label}
                    </option>
                  ))}
                </select>
              </div>

              {/* Priority */}
              <div style={{ flex: 1 }}>
                <label style={{
                  display: 'block',
                  fontSize: 13,
                  fontWeight: 500,
                  marginBottom: 4,
                  color: 'var(--text2)'
                }}>
                  Priorität *
                </label>
                <select
                  className="form-input"
                  style={{ width: '100%' }}
                  value={formData.priority}
                  onChange={e => setFormData(f => ({ ...f, priority: parseInt(e.target.value) }))}
                >
                  {Object.entries(PRIORITY_LEVELS).map(([level, info]) => (
                    <option key={level} value={level}>
                      {info.stars} {info.label}
                    </option>
                  ))}
                </select>
              </div>
            </div>

            {/* Buttons */}
            <button
              className="btn btn-primary btn-full"
              onClick={handleSaveGoal}
              style={{ marginBottom: 8 }}
            >
              {editingGoal ? 'Aktualisieren' : 'Ziel erstellen'}
            </button>
            <button
              className="btn btn-secondary btn-full"
              onClick={() => {
                setShowGoalForm(false)
                setEditingGoal(null)
                setError(null)
              }}
            >
              Abbrechen
            </button>
          </div>
        </div>
      )}

      {/* Progress Modal */}
      {showProgressModal && progressGoal && (
        <div style={{
          position: 'fixed',
          top: 0,
          left: 0,
          right: 0,
          bottom: 0,
          background: 'rgba(0,0,0,0.5)',
          display: 'flex',
          alignItems: 'flex-start',
          justifyContent: 'center',
          zIndex: 1000,
          padding: 16,
          overflowY: 'auto'
        }}>
          <div className="card" style={{
            width: '100%',
            maxWidth: 600,
            marginTop: 40,
            marginBottom: 40
          }}>
            <h2 style={{ marginBottom: 20, display: 'flex', alignItems: 'center', gap: 8 }}>
              <TrendingUp size={24} style={{ color: 'var(--accent)' }} />
              Fortschritt erfassen
            </h2>

            <div style={{
              padding: 12,
              background: 'var(--surface2)',
              borderRadius: 8,
              marginBottom: 24,
              borderLeft: `4px solid ${GOAL_CATEGORIES[progressGoal.category]?.color || 'var(--accent)'}`
            }}>
              <div style={{ fontWeight: 600, marginBottom: 4 }}>
                {progressGoal.name || progressGoal.label_de || progressGoal.goal_type}
              </div>
              <div style={{ fontSize: 14, color: 'var(--text2)' }}>
                Ziel: {progressGoal.target_value} {progressGoal.unit}
              </div>
            </div>

            {/* Progress Form */}
            <div style={{ marginBottom: 24 }}>
              <h3 style={{ fontSize: 16, marginBottom: 16 }}>Neuer Eintrag</h3>

              <div style={{ display: 'flex', flexDirection: 'column', gap: 16 }}>
                <div>
                  <div style={{
                    fontSize: 14,
                    fontWeight: 600,
                    marginBottom: 8,
                    color: 'var(--text1)'
                  }}>
                    Datum
                  </div>
                  <input
                    type="date"
                    className="form-input"
                    value={progressFormData.date}
                    onChange={(e) => setProgressFormData({ ...progressFormData, date: e.target.value })}
                    max={new Date().toISOString().split('T')[0]}
                    style={{ width: '100%', textAlign: 'left' }}
                  />
                </div>

                <div>
                  <div style={{
                    fontSize: 14,
                    fontWeight: 600,
                    marginBottom: 8,
                    color: 'var(--text1)'
                  }}>
                    Wert ({progressGoal.unit})
                  </div>
                  <input
                    type="number"
                    step="0.01"
                    className="form-input"
                    value={progressFormData.value}
                    onChange={(e) => setProgressFormData({ ...progressFormData, value: e.target.value })}
                    placeholder={`z.B. ${progressGoal.current_value || progressGoal.target_value}`}
                    style={{ width: '100%', textAlign: 'left' }}
                  />
                </div>

                <div>
                  <div style={{
                    fontSize: 14,
                    fontWeight: 600,
                    marginBottom: 8,
                    color: 'var(--text1)'
                  }}>
                    Notiz (optional)
                  </div>
                  <textarea
                    className="form-input"
                    value={progressFormData.note}
                    onChange={(e) => setProgressFormData({ ...progressFormData, note: e.target.value })}
                    placeholder="Optionale Notiz..."
                    rows={2}
                    style={{ width: '100%', textAlign: 'left' }}
                  />
                </div>

                <button
                  className="btn-primary"
                  onClick={handleSaveProgress}
                  disabled={!progressFormData.value}
                  style={{ width: '100%' }}
                >
                  Eintrag speichern
                </button>
              </div>
            </div>

            {/* Progress History */}
            <div>
              <h3 style={{ fontSize: 16, marginBottom: 12 }}>
                Verlauf ({progressEntries.length} Einträge)
              </h3>

              {progressEntries.length === 0 ? (
                <div style={{
                  padding: 24,
                  textAlign: 'center',
                  color: 'var(--text2)',
                  background: 'var(--surface2)',
                  borderRadius: 8
                }}>
                  Noch keine Einträge vorhanden
                </div>
              ) : (
                <div style={{ display: 'flex', flexDirection: 'column', gap: 8 }}>
                  {progressEntries.map(entry => (
                    <div key={entry.id} style={{
                      padding: 12,
                      background: 'var(--surface2)',
                      borderRadius: 8,
                      display: 'flex',
                      justifyContent: 'space-between',
                      alignItems: 'center'
                    }}>
                      <div style={{ flex: 1 }}>
                        <div style={{ display: 'flex', gap: 12, alignItems: 'center', marginBottom: 4 }}>
                          <span style={{ fontWeight: 600 }}>
                            {dayjs(entry.date).format('DD.MM.YYYY')}
                          </span>
                          <span style={{
                            fontSize: 18,
                            fontWeight: 600,
                            color: 'var(--accent)'
                          }}>
                            {entry.value} {progressGoal.unit}
                          </span>
                          {entry.source !== 'manual' && (
                            <span style={{
                              fontSize: 11,
                              padding: '2px 6px',
                              background: 'var(--surface)',
                              borderRadius: 4,
                              color: 'var(--text3)'
                            }}>
                              {entry.source}
                            </span>
                          )}
                        </div>
                        {entry.note && (
                          <div style={{ fontSize: 13, color: 'var(--text2)' }}>
                            {entry.note}
                          </div>
                        )}
                      </div>

                      {entry.source === 'manual' && (
                        <button
                          className="btn-secondary"
                          onClick={() => handleDeleteProgress(entry.id)}
                          style={{
                            padding: '6px 12px',
                            color: '#DC2626',
                            flexShrink: 0
                          }}
                          title="Löschen"
                        >
                          <Trash2 size={14} />
                        </button>
                      )}
                    </div>
                  ))}
                </div>
              )}
            </div>

            {/* Close Button */}
            <div style={{ marginTop: 24, display: 'flex', justifyContent: 'flex-end' }}>
              <button
                className="btn-secondary"
                onClick={() => {
                  setShowProgressModal(false)
                  setProgressGoal(null)
                  setProgressEntries([])
                  setProgressFormData({
                    date: new Date().toISOString().split('T')[0],
                    value: '',
                    note: ''
                  })
                }}
              >
                Schließen
              </button>
            </div>
          </div>
        </div>
      )}
    </div>
  )
}