<template>
  <div id="app">
    <header class="header">
      <div class="header-content">
        <div class="logo-section">
          <div class="logo">
            <span class="flag">🇮🇩</span>
            <h1>Learn Indonesian</h1>
          </div>
          <p class="tagline">Learn Indonesian through everyday scenarios</p>
        </div>
      </div>
    </header>

    <nav class="scenario-nav">
      <div class="nav-container">
        <div class="nav-tabs">
          <a
            v-for="scenario in scenarios" 
            :key="scenario.type"
            @click="handleScenarioSwitch(scenario.type)"
            :class="['nav-tab', { active: $route.params.type === scenario.type }]"
            href="#"
          >
            <span class="tab-emoji">{{ scenario.emoji }}</span>
            <span class="tab-text">{{ scenario.name }}</span>
          </a>
        </div>
      </div>
    </nav>

    <main class="main-content">
      <router-view />
    </main>
  </div>
</template>

<script>
export default {
  name: 'App',
  data() {
    return {
      scenarios: [],
      hasConversationProgress: false
    }
  },
  provide() {
    return {
      updateConversationProgress: this.updateConversationProgress
    }
  },
  async mounted() {
    await this.loadScenarios()
  },
  methods: {
    async loadScenarios() {
      try {
        const response = await fetch('/api/scenarios/indonesian')
        const scenariosData = await response.json()
        
        this.scenarios = Object.entries(scenariosData).map(([type, scenario]) => ({
          type: type,
          name: scenario.title,
          emoji: this.getScenarioEmoji(type),
          description: scenario.description,
          challenge: scenario.challenge,
          goal: scenario.goal
        }))
      } catch (error) {
        console.error('Failed to load scenarios:', error)
        this.scenarios = [
          { type: 'warung', name: 'At a Warung', emoji: '🍜' },
          { type: 'ojek', name: 'Taking an Ojek', emoji: '🏍️' },
          { type: 'alfamart', name: 'At Alfamart', emoji: '🏪' },
          { type: 'coffee_shop', name: 'Coffee Shop Small Talk', emoji: '☕' }
        ]
      }
    },
    getScenarioEmoji(type) {
      const emojiMap = {
        'warung': '🍜',
        'ojek': '🏍️',
        'alfamart': '🏪',
        'coffee_shop': '☕'
      }
      return emojiMap[type] || '📍'
    },
    updateConversationProgress(hasProgress) {
      this.hasConversationProgress = hasProgress
    },
    handleScenarioSwitch(newScenarioType) {
      event.preventDefault()
      
      if (this.$route.params.type === newScenarioType) {
        return
      }
      
      if (this.hasConversationProgress) {
        const confirmed = confirm(
          `Switching scenarios will reset your current conversation progress.\n\nAre you sure you want to switch to "${this.scenarios.find(s => s.type === newScenarioType)?.name}"?`
        )
        
        if (!confirmed) {
          return
        }
      }
      
      this.$router.push(`/scenario/${newScenarioType}`)
    }
  }
}
</script>

<style>
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Crimson+Pro:wght@400;500;600;700&family=DM+Sans:wght@300;400;500;600;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #c53030;
  --primary-light: #e53e3e;
  --primary-dark: #9c1c1c;
  --secondary: #dd6b20;
  --accent: #38a169;
  --surface: #fefcf7;
  --surface-alt: #f7f5f0;
  --surface-dark: #2d3748;
  --text: #2d3748;
  --text-light: #4a5568;
  --text-muted: #718096;
  --border: #e2d8cc;
  --shadow-sm: 0 1px 2px 0 rgb(45 55 72 / 0.05);
  --shadow: 0 4px 6px -1px rgb(45 55 72 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(45 55 72 / 0.1);
  --radius: 12px;
  --radius-lg: 16px;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  background: var(--surface);
  min-height: 100vh;
  color: var(--text);
  font-feature-settings: 'liga' 1, 'kern' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.logo-section {
  text-align: center;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.flag {
  font-size: 2rem;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo h1 {
  font-family: 'Crimson Pro', serif;
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}

.tagline {
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 400;
  letter-spacing: 0.01em;
}

.scenario-nav {
  background: var(--surface-alt);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.nav-tab::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: -1;
}

.nav-tab:hover {
  color: var(--text);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.nav-tab.active {
  color: white;
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.nav-tab.active::before {
  opacity: 0;
}

.tab-emoji {
  font-size: 1.1rem;
  filter: grayscale(0.3);
  transition: filter 0.2s ease;
}

.nav-tab:hover .tab-emoji,
.nav-tab.active .tab-emoji {
  filter: grayscale(0);
}

.tab-text {
  white-space: nowrap;
}

.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 768px) {
  .header-content,
  .nav-container {
    padding: 0 1rem;
  }
  
  .logo h1 {
    font-size: 1.75rem;
  }
  
  .tagline {
    font-size: 0.9rem;
  }
  
  .nav-tabs {
    gap: 0.25rem;
  }
  
  .nav-tab {
    padding: 0.625rem 1rem;
    font-size: 0.85rem;
  }
  
  .main-content {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .logo {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .nav-tabs {
    flex-direction: column;
    align-items: center;
  }
  
  .nav-tab {
    width: 100%;
    max-width: 200px;
    justify-content: center;
  }
}
</style>