/**
 * 个人中心场景 - 支持创作者功能
 */
import BaseScene from './BaseScene';

export default class ProfileScene extends BaseScene {
  constructor(main, params) {
    super(main, params);
    // Tab: 0我的作品 1草稿箱 2收藏 3游玩记录
    this.currentTab = 0;
    this.tabs = ['作品', '草稿', '收藏', '记录'];
    
    // 数据
    this.myWorks = [];
    this.drafts = [];
    this.collections = [];
    this.progress = [];
    
    // 统计
    this.stats = {
      works: 0,
      totalPlays: 0,
      totalLikes: 0,
      earnings: 0
    };
    
    // 滚动
    this.scrollY = 0;
    this.maxScrollY = 0;
    this.isDragging = false;
    this.lastTouchY = 0;
    this.scrollVelocity = 0;
    this.hasMoved = false;
  }

  async init() {
    await this.loadData();
  }

  async loadData() {
    if (this.main.userManager.isLoggedIn) {
      try {
        this.myWorks = await this.main.userManager.getMyWorks?.() || [];
        this.drafts = await this.main.userManager.getDrafts?.() || [];
        this.collections = await this.main.userManager.getCollections() || [];
        this.progress = await this.main.userManager.getProgress() || [];
        
        // 计算统计
        this.stats.works = this.myWorks.length;
        this.stats.totalPlays = this.myWorks.reduce((sum, w) => sum + (w.play_count || 0), 0);
        this.stats.totalLikes = this.myWorks.reduce((sum, w) => sum + (w.like_count || 0), 0);
        this.stats.earnings = this.myWorks.reduce((sum, w) => sum + (w.earnings || 0), 0);
      } catch (e) {
        console.error('加载数据失败:', e);
      }
    }
    this.calculateMaxScroll();
  }

  getCurrentList() {
    switch (this.currentTab) {
      case 0: return this.myWorks;
      case 1: return this.drafts;
      case 2: return this.collections;
      case 3: return this.progress;
      default: return [];
    }
  }

  calculateMaxScroll() {
    const list = this.getCurrentList();
    const cardHeight = this.currentTab <= 1 ? 100 : 85;
    const gap = 10;
    const headerHeight = 260;
    const contentHeight = list.length * (cardHeight + gap) + headerHeight;
    this.maxScrollY = Math.max(0, contentHeight - this.screenHeight + 20);
  }

  update() {
    if (!this.isDragging && Math.abs(this.scrollVelocity) > 0.5) {
      this.scrollY += this.scrollVelocity;
      this.scrollVelocity *= 0.95;
      this.scrollY = Math.max(0, Math.min(this.scrollY, this.maxScrollY));
    }
  }

  render(ctx) {
    this.renderBackground(ctx);
    this.renderHeader(ctx);
    this.renderUserCard(ctx);
    this.renderTabs(ctx);
    this.renderList(ctx);
  }

  renderBackground(ctx) {
    const gradient = ctx.createLinearGradient(0, 0, 0, this.screenHeight);
    gradient.addColorStop(0, '#0f0c29');
    gradient.addColorStop(0.5, '#302b63');
    gradient.addColorStop(1, '#24243e');
    ctx.fillStyle = gradient;
    ctx.fillRect(0, 0, this.screenWidth, this.screenHeight);
  }

  renderHeader(ctx) {
    ctx.fillStyle = '#ffffff';
    ctx.font = '16px sans-serif';
    ctx.textAlign = 'left';
    ctx.fillText('‹ 返回', 15, 35);

    ctx.textAlign = 'center';
    ctx.font = 'bold 17px sans-serif';
    ctx.fillText('个人中心', this.screenWidth / 2, 35);

    // 设置按钮
    ctx.fillStyle = 'rgba(255,255,255,0.6)';
    ctx.font = '18px sans-serif';
    ctx.textAlign = 'right';
    ctx.fillText('⚙', this.screenWidth - 20, 35);
  }

  renderUserCard(ctx) {
    const cardY = 55;
    const cardH = 145;
    const user = this.main.userManager;

    // 卡片背景
    ctx.fillStyle = 'rgba(255,255,255,0.06)';
    this.roundRect(ctx, 12, cardY, this.screenWidth - 24, cardH, 14);
    ctx.fill();

    // 头像
    const avatarSize = 50;
    const avatarX = 30;
    const avatarY = cardY + 18;
    const avatarGradient = ctx.createLinearGradient(avatarX, avatarY, avatarX + avatarSize, avatarY + avatarSize);
    avatarGradient.addColorStop(0, '#ff6b6b');
    avatarGradient.addColorStop(1, '#ffd700');
    ctx.fillStyle = avatarGradient;
    ctx.beginPath();
    ctx.arc(avatarX + avatarSize / 2, avatarY + avatarSize / 2, avatarSize / 2, 0, Math.PI * 2);
    ctx.fill();

    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 20px sans-serif';
    ctx.textAlign = 'center';
    ctx.fillText(user.nickname ? user.nickname[0] : '游', avatarX + avatarSize / 2, avatarY + avatarSize / 2 + 7);

    // 昵称和ID
    ctx.textAlign = 'left';
    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 16px sans-serif';
    ctx.fillText(user.nickname || '游客用户', avatarX + avatarSize + 15, avatarY + 22);

    ctx.fillStyle = 'rgba(255,255,255,0.4)';
    ctx.font = '11px sans-serif';
    ctx.fillText(`ID: ${user.userId || '未登录'}`, avatarX + avatarSize + 15, avatarY + 42);

    // 创作者标签
    if (this.myWorks.length > 0) {
      const tagX = avatarX + avatarSize + 15 + ctx.measureText(`ID: ${user.userId || '未登录'}`).width + 10;
      ctx.fillStyle = '#a855f7';
      this.roundRect(ctx, tagX, avatarY + 30, 45, 18, 9);
      ctx.fill();
      ctx.fillStyle = '#ffffff';
      ctx.font = 'bold 9px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText('创作者', tagX + 22, avatarY + 42);
    }

    // 分割线
    const lineY = cardY + 80;
    ctx.strokeStyle = 'rgba(255,255,255,0.08)';
    ctx.lineWidth = 1;
    ctx.beginPath();
    ctx.moveTo(25, lineY);
    ctx.lineTo(this.screenWidth - 25, lineY);
    ctx.stroke();

    // 统计数据
    const statsY = lineY + 30;
    const statW = (this.screenWidth - 24) / 4;
    const statsData = [
      { num: this.stats.works, label: '作品' },
      { num: this.stats.totalPlays, label: '播放' },
      { num: this.stats.totalLikes, label: '获赞' },
      { num: this.stats.earnings.toFixed(1), label: '收益' }
    ];

    statsData.forEach((stat, i) => {
      const x = 12 + statW * i + statW / 2;
      ctx.fillStyle = '#ffffff';
      ctx.font = 'bold 16px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText(this.formatNumber(stat.num), x, statsY);
      ctx.fillStyle = 'rgba(255,255,255,0.45)';
      ctx.font = '10px sans-serif';
      ctx.fillText(stat.label, x, statsY + 15);
    });
  }

  renderTabs(ctx) {
    const tabY = 210;
    const tabW = (this.screenWidth - 24) / this.tabs.length;
    
    this.tabRects = [];
    this.tabs.forEach((tab, index) => {
      const x = 12 + index * tabW;
      const isActive = index === this.currentTab;
      const centerX = x + tabW / 2;

      ctx.fillStyle = isActive ? '#ffffff' : 'rgba(255,255,255,0.45)';
      ctx.font = isActive ? 'bold 13px sans-serif' : '13px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText(tab, centerX, tabY + 12);

      // 下划线
      if (isActive) {
        const lineGradient = ctx.createLinearGradient(centerX - 14, tabY + 20, centerX + 14, tabY + 20);
        lineGradient.addColorStop(0, '#ff6b6b');
        lineGradient.addColorStop(1, '#ffd700');
        ctx.fillStyle = lineGradient;
        this.roundRect(ctx, centerX - 14, tabY + 18, 28, 3, 1.5);
        ctx.fill();
      }

      this.tabRects.push({ x, y: tabY - 5, width: tabW, height: 30, index });
    });
  }

  renderList(ctx) {
    const list = this.getCurrentList();
    const startY = 250;
    const cardH = this.currentTab <= 1 ? 100 : 85;
    const gap = 10;
    const padding = 12;

    ctx.save();
    ctx.beginPath();
    ctx.rect(0, startY - 5, this.screenWidth, this.screenHeight - startY + 5);
    ctx.clip();

    if (list.length === 0) {
      ctx.fillStyle = 'rgba(255,255,255,0.35)';
      ctx.font = '13px sans-serif';
      ctx.textAlign = 'center';
      const emptyTexts = ['还没有发布作品，去创作吧', '草稿箱空空如也', '还没有收藏的故事', '还没有游玩记录'];
      ctx.fillText(emptyTexts[this.currentTab], this.screenWidth / 2, startY + 50);
      
      // 创作引导按钮
      if (this.currentTab === 0) {
        const btnY = startY + 80;
        const btnGradient = ctx.createLinearGradient(this.screenWidth / 2 - 50, btnY, this.screenWidth / 2 + 50, btnY);
        btnGradient.addColorStop(0, '#a855f7');
        btnGradient.addColorStop(1, '#ec4899');
        ctx.fillStyle = btnGradient;
        this.roundRect(ctx, this.screenWidth / 2 - 50, btnY, 100, 36, 18);
        ctx.fill();
        ctx.fillStyle = '#ffffff';
        ctx.font = 'bold 13px sans-serif';
        ctx.fillText('✨ 开始创作', this.screenWidth / 2, btnY + 23);
        this.createBtnRect = { x: this.screenWidth / 2 - 50, y: btnY, width: 100, height: 36 };
      }
      
      ctx.restore();
      return;
    }

    list.forEach((item, index) => {
      const y = startY + index * (cardH + gap) - this.scrollY;
      if (y > startY - cardH && y < this.screenHeight) {
        if (this.currentTab === 0) {
          this.renderWorkCard(ctx, item, padding, y, this.screenWidth - padding * 2, cardH, index);
        } else if (this.currentTab === 1) {
          this.renderDraftCard(ctx, item, padding, y, this.screenWidth - padding * 2, cardH, index);
        } else {
          this.renderSimpleCard(ctx, item, padding, y, this.screenWidth - padding * 2, cardH, index);
        }
      }
    });

    ctx.restore();
  }

  renderWorkCard(ctx, item, x, y, w, h, index) {
    // 卡片背景
    ctx.fillStyle = 'rgba(255,255,255,0.05)';
    this.roundRect(ctx, x, y, w, h, 12);
    ctx.fill();

    // 封面
    const coverW = 70, coverH = h - 16;
    const colors = this.getGradientColors(index);
    const coverGradient = ctx.createLinearGradient(x + 8, y + 8, x + 8 + coverW, y + 8 + coverH);
    coverGradient.addColorStop(0, colors[0]);
    coverGradient.addColorStop(1, colors[1]);
    ctx.fillStyle = coverGradient;
    this.roundRect(ctx, x + 8, y + 8, coverW, coverH, 10);
    ctx.fill();

    ctx.fillStyle = 'rgba(255,255,255,0.8)';
    ctx.font = 'bold 9px sans-serif';
    ctx.textAlign = 'center';
    ctx.fillText(item.category || '故事', x + 8 + coverW / 2, y + 8 + coverH / 2 + 3);

    const textX = x + 88;
    const maxW = w - 100;

    // 标题
    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 14px sans-serif';
    ctx.textAlign = 'left';
    ctx.fillText(this.truncateText(ctx, item.title || '未命名', maxW - 60), textX, y + 25);

    // 审核状态标签
    const statusMap = {
      0: { text: '草稿', color: '#888888' },
      1: { text: '审核中', color: '#f59e0b' },
      2: { text: '已发布', color: '#22c55e' },
      3: { text: '已下架', color: '#ef4444' },
      4: { text: '被拒绝', color: '#ef4444' }
    };
    const status = statusMap[item.status] || statusMap[0];
    const statusW = ctx.measureText(status.text).width + 12;
    ctx.fillStyle = status.color + '33';
    this.roundRect(ctx, textX + ctx.measureText(this.truncateText(ctx, item.title || '未命名', maxW - 60)).width + 8, y + 12, statusW, 18, 9);
    ctx.fill();
    ctx.fillStyle = status.color;
    ctx.font = 'bold 10px sans-serif';
    ctx.fillText(status.text, textX + ctx.measureText(this.truncateText(ctx, item.title || '未命名', maxW - 60)).width + 8 + statusW / 2, y + 24);

    // 数据统计
    ctx.fillStyle = 'rgba(255,255,255,0.45)';
    ctx.font = '11px sans-serif';
    ctx.textAlign = 'left';
    ctx.fillText(`▶ ${this.formatNumber(item.play_count || 0)}`, textX, y + 50);
    ctx.fillText(`♥ ${this.formatNumber(item.like_count || 0)}`, textX + 55, y + 50);
    ctx.fillText(`💰 ${(item.earnings || 0).toFixed(1)}`, textX + 105, y + 50);

    // 操作按钮
    const btnY = y + 65;
    const btns = ['编辑', '数据'];
    btns.forEach((btn, i) => {
      const btnX = textX + i * 55;
      ctx.fillStyle = 'rgba(255,255,255,0.1)';
      this.roundRect(ctx, btnX, btnY, 48, 24, 12);
      ctx.fill();
      ctx.fillStyle = 'rgba(255,255,255,0.7)';
      ctx.font = '11px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText(btn, btnX + 24, btnY + 16);
    });
  }

  renderDraftCard(ctx, item, x, y, w, h, index) {
    ctx.fillStyle = 'rgba(255,255,255,0.05)';
    this.roundRect(ctx, x, y, w, h, 12);
    ctx.fill();

    const coverW = 70, coverH = h - 16;
    const colors = this.getGradientColors(index);
    const coverGradient = ctx.createLinearGradient(x + 8, y + 8, x + 8 + coverW, y + 8 + coverH);
    coverGradient.addColorStop(0, colors[0]);
    coverGradient.addColorStop(1, colors[1]);
    ctx.fillStyle = coverGradient;
    this.roundRect(ctx, x + 8, y + 8, coverW, coverH, 10);
    ctx.fill();

    // AI标签
    if (item.source === 'ai') {
      ctx.fillStyle = '#a855f7';
      this.roundRect(ctx, x + 8, y + 8, 28, 16, 8);
      ctx.fill();
      ctx.fillStyle = '#ffffff';
      ctx.font = 'bold 9px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText('AI', x + 22, y + 19);
    }

    const textX = x + 88;

    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 14px sans-serif';
    ctx.textAlign = 'left';
    ctx.fillText(this.truncateText(ctx, item.title || '未命名草稿', w - 180), textX, y + 25);

    ctx.fillStyle = 'rgba(255,255,255,0.4)';
    ctx.font = '11px sans-serif';
    ctx.fillText(`创建于 ${item.created_at || '刚刚'}`, textX, y + 48);
    ctx.fillText(`${item.node_count || 0} 个节点`, textX + 100, y + 48);

    // 按钮
    const btnY = y + 62;
    const btns = [{ text: '继续编辑', primary: true }, { text: '删除', primary: false }];
    let btnX = textX;
    btns.forEach((btn) => {
      const btnW = btn.primary ? 65 : 45;
      if (btn.primary) {
        const btnGradient = ctx.createLinearGradient(btnX, btnY, btnX + btnW, btnY);
        btnGradient.addColorStop(0, '#a855f7');
        btnGradient.addColorStop(1, '#ec4899');
        ctx.fillStyle = btnGradient;
      } else {
        ctx.fillStyle = 'rgba(255,255,255,0.1)';
      }
      this.roundRect(ctx, btnX, btnY, btnW, 26, 13);
      ctx.fill();
      ctx.fillStyle = '#ffffff';
      ctx.font = btn.primary ? 'bold 11px sans-serif' : '11px sans-serif';
      ctx.textAlign = 'center';
      ctx.fillText(btn.text, btnX + btnW / 2, btnY + 17);
      btnX += btnW + 8;
    });
  }

  renderSimpleCard(ctx, item, x, y, w, h, index) {
    ctx.fillStyle = 'rgba(255,255,255,0.05)';
    this.roundRect(ctx, x, y, w, h, 12);
    ctx.fill();

    const coverW = 60, coverH = h - 16;
    const colors = this.getGradientColors(index);
    const coverGradient = ctx.createLinearGradient(x + 8, y + 8, x + 8 + coverW, y + 8 + coverH);
    coverGradient.addColorStop(0, colors[0]);
    coverGradient.addColorStop(1, colors[1]);
    ctx.fillStyle = coverGradient;
    this.roundRect(ctx, x + 8, y + 8, coverW, coverH, 8);
    ctx.fill();

    ctx.fillStyle = 'rgba(255,255,255,0.85)';
    ctx.font = 'bold 9px sans-serif';
    ctx.textAlign = 'center';
    ctx.fillText(item.category || '故事', x + 8 + coverW / 2, y + 8 + coverH / 2 + 3);

    const textX = x + 78;

    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 14px sans-serif';
    ctx.textAlign = 'left';
    ctx.fillText(this.truncateText(ctx, item.story_title || item.title || '未知', w - 150), textX, y + 28);

    ctx.fillStyle = 'rgba(255,255,255,0.45)';
    ctx.font = '11px sans-serif';
    if (this.currentTab === 3 && item.is_completed) {
      ctx.fillStyle = '#4ade80';
      ctx.fillText('✓ 已完成', textX, y + 50);
    } else if (this.currentTab === 3) {
      ctx.fillText('进行中...', textX, y + 50);
    } else {
      ctx.fillText(item.category || '', textX, y + 50);
    }

    // 继续按钮
    const btnGradient = ctx.createLinearGradient(x + w - 58, y + 28, x + w - 10, y + 28);
    btnGradient.addColorStop(0, '#ff6b6b');
    btnGradient.addColorStop(1, '#ffd700');
    ctx.fillStyle = btnGradient;
    this.roundRect(ctx, x + w - 58, y + 28, 48, 26, 13);
    ctx.fill();
    ctx.fillStyle = '#ffffff';
    ctx.font = 'bold 11px sans-serif';
    ctx.textAlign = 'center';
    ctx.fillText('继续', x + w - 34, y + 45);
  }

  getGradientColors(index) {
    const colors = [
      ['#ff758c', '#ff7eb3'],
      ['#667eea', '#764ba2'],
      ['#4facfe', '#00f2fe'],
      ['#43e97b', '#38f9d7'],
      ['#fa709a', '#fee140'],
      ['#a855f7', '#ec4899']
    ];
    return colors[index % colors.length];
  }

  formatNumber(num) {
    if (!num) return '0';
    if (num >= 10000) return (num / 10000).toFixed(1) + 'w';
    if (num >= 1000) return (num / 1000).toFixed(1) + 'k';
    return num.toString();
  }

  truncateText(ctx, text, maxW) {
    if (!text) return '';
    if (ctx.measureText(text).width <= maxW) return text;
    let t = text;
    while (t.length > 0 && ctx.measureText(t + '...').width > maxW) t = t.slice(0, -1);
    return t + '...';
  }

  roundRect(ctx, x, y, w, h, r) {
    ctx.beginPath();
    ctx.moveTo(x + r, y);
    ctx.lineTo(x + w - r, y);
    ctx.quadraticCurveTo(x + w, y, x + w, y + r);
    ctx.lineTo(x + w, y + h - r);
    ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);
    ctx.lineTo(x + r, y + h);
    ctx.quadraticCurveTo(x, y + h, x, y + h - r);
    ctx.lineTo(x, y + r);
    ctx.quadraticCurveTo(x, y, x + r, y);
    ctx.closePath();
  }

  onTouchStart(e) {
    const touch = e.touches[0];
    this.lastTouchY = touch.clientY;
    this.touchStartY = touch.clientY;
    this.isDragging = true;
    this.scrollVelocity = 0;
    this.hasMoved = false;
  }

  onTouchMove(e) {
    if (!this.isDragging) return;
    const touch = e.touches[0];
    const deltaY = this.lastTouchY - touch.clientY;
    if (Math.abs(touch.clientY - this.touchStartY) > 5) this.hasMoved = true;
    this.scrollVelocity = deltaY;
    this.scrollY += deltaY;
    this.scrollY = Math.max(0, Math.min(this.scrollY, this.maxScrollY));
    this.lastTouchY = touch.clientY;
  }

  onTouchEnd(e) {
    this.isDragging = false;
    if (this.hasMoved) return;

    const touch = e.changedTouches[0];
    const x = touch.clientX;
    const y = touch.clientY;

    // 返回
    if (y < 50 && x < 80) {
      this.main.sceneManager.switchScene('home');
      return;
    }

    // Tab切换
    if (this.tabRects) {
      for (const rect of this.tabRects) {
        if (x >= rect.x && x <= rect.x + rect.width && y >= rect.y && y <= rect.y + rect.height) {
          if (this.currentTab !== rect.index) {
            this.currentTab = rect.index;
            this.scrollY = 0;
            this.calculateMaxScroll();
          }
          return;
        }
      }
    }

    // 创作按钮
    if (this.createBtnRect && this.currentTab === 0) {
      const btn = this.createBtnRect;
      if (x >= btn.x && x <= btn.x + btn.width && y >= btn.y && y <= btn.y + btn.height) {
        this.main.sceneManager.switchScene('aiCreate');
        return;
      }
    }

    // 卡片点击
    this.handleCardClick(x, y);
  }

  handleCardClick(x, y) {
    const list = this.getCurrentList();
    const startY = 250;
    const cardH = this.currentTab <= 1 ? 100 : 85;
    const gap = 10;

    const adjustedY = y + this.scrollY;
    const index = Math.floor((adjustedY - startY) / (cardH + gap));

    if (index >= 0 && index < list.length) {
      const item = list[index];
      const storyId = item.story_id || item.id;
      
      if (this.currentTab >= 2) {
        // 收藏/记录 - 跳转播放
        this.main.sceneManager.switchScene('story', { storyId });
      } else if (this.currentTab === 1) {
        // 草稿 - 跳转编辑（暂用AI创作）
        this.main.sceneManager.switchScene('aiCreate', { draftId: item.id });
      }
      // 作品Tab的按钮操作需要更精确判断，暂略
    }
  }
}