#!/bin/bash

# 回归测试脚本
# 用途：每次大规模代码移除后，自动运行回归测试，确保流程通畅
# 使用方法：./test-regression.sh

set -e  # 遇到错误立即退出

echo "🧪 ========================================"
echo "🧪 开始回归测试"
echo "🧪 ========================================"
echo ""

# 颜色定义
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

# 测试结果统计
PASSED=0
FAILED=0
SKIPPED=0

# 测试函数
test_check() {
    local test_name="$1"
    local command="$2"
    
    echo -n "  ⏳ $test_name... "
    
    if eval "$command" > /dev/null 2>&1; then
        echo -e "${GREEN}✅ 通过${NC}"
        ((PASSED++))
        return 0
    else
        echo -e "${RED}❌ 失败${NC}"
        ((FAILED++))
        return 1
    fi
}

test_check_with_output() {
    local test_name="$1"
    local command="$2"
    
    echo "  ⏳ $test_name..."
    echo "    执行: $command"
    
    if eval "$command" 2>&1; then
        echo -e "    ${GREEN}✅ 通过${NC}"
        ((PASSED++))
        return 0
    else
        echo -e "    ${RED}❌ 失败${NC}"
        ((FAILED++))
        return 1
    fi
}

# ========================================
# 1. 编译检查
# ========================================
echo "📦 阶段 1: 编译检查"
echo "----------------------------------------"

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

# 检查是否在 iOS 项目目录
if [ ! -d "$PROJECT_ROOT/ios/WildGrowth" ]; then
    echo -e "${RED}❌ 错误: 未找到 iOS 项目目录${NC}"
    exit 1
fi

cd "$PROJECT_ROOT/ios/WildGrowth"

# 检查 Xcode 项目文件
if [ ! -f "WildGrowth.xcodeproj/project.pbxproj" ]; then
    echo -e "${YELLOW}⚠️  警告: 未找到 Xcode 项目文件，跳过编译检查${NC}"
    SKIPPED=$((SKIPPED + 1))
else
    # 尝试编译（如果 xcodebuild 可用）
    if command -v xcodebuild &> /dev/null; then
        echo "  ⏳ 编译项目..."
        if xcodebuild -project WildGrowth.xcodeproj -scheme WildGrowth -destination 'platform=iOS Simulator,name=iPhone 15' clean build > /tmp/xcode_build.log 2>&1; then
            echo -e "  ${GREEN}✅ 编译成功${NC}"
            PASSED=$((PASSED + 1))
        else
            echo -e "  ${RED}❌ 编译失败${NC}"
            echo "  查看日志: tail -50 /tmp/xcode_build.log"
            FAILED=$((FAILED + 1))
        fi
    else
        echo -e "  ${YELLOW}⚠️  xcodebuild 不可用，跳过编译检查${NC}"
        SKIPPED=$((SKIPPED + 1))
    fi
fi

echo ""

# ========================================
# 2. 文件存在性检查
# ========================================
echo "📁 阶段 2: 文件存在性检查"
echo "----------------------------------------"

cd "$PROJECT_ROOT/ios/WildGrowth/WildGrowth"

# 检查应该存在的文件
REQUIRED_FILES=(
    "VerticalScreenPlayerView.swift"
    "MapView.swift"
    "HomeView.swift"
    "Views/GrowthView.swift"
    "ProfileView.swift"
    "CourseModels.swift"
)

for file in "${REQUIRED_FILES[@]}"; do
    if [ -f "$file" ]; then
        echo -e "  ${GREEN}✅ $file 存在${NC}"
        PASSED=$((PASSED + 1))
    else
        echo -e "  ${RED}❌ $file 不存在${NC}"
        FAILED=$((FAILED + 1))
    fi
done

echo ""

# 检查应该删除的文件（不应该存在）
DELETED_FILES=(
    "SummaryView.swift"
    "GuestSummaryView.swift"
    "FlatNodeButton.swift"
    "ThreeDButton.swift"
    "LessonPlayerView.swift"
    "SlideImageView.swift"
)

for file in "${DELETED_FILES[@]}"; do
    if [ -f "$file" ]; then
        echo -e "  ${YELLOW}⚠️  $file 仍然存在（应该已删除）${NC}"
        SKIPPED=$((SKIPPED + 1))
    else
        echo -e "  ${GREEN}✅ $file 已删除${NC}"
        PASSED=$((PASSED + 1))
    fi
done

echo ""

# ========================================
# 3. 代码引用检查
# ========================================
echo "🔍 阶段 3: 代码引用检查"
echo "----------------------------------------"

cd "$PROJECT_ROOT/ios/WildGrowth/WildGrowth"

# 检查是否还有对已删除组件的引用
check_no_reference() {
    local component="$1"
    local pattern="$2"
    
    echo -n "  ⏳ 检查 $component 引用... "
    
    if grep -r "$pattern" . --include="*.swift" > /dev/null 2>&1; then
        echo -e "${RED}❌ 发现引用${NC}"
        echo "    引用位置:"
        grep -rn "$pattern" . --include="*.swift" | head -5 | sed 's/^/      /'
        FAILED=$((FAILED + 1))
        return 1
    else
        echo -e "${GREEN}✅ 无引用${NC}"
        PASSED=$((PASSED + 1))
        return 0
    fi
}

# 检查已删除组件的引用
check_no_reference "SummaryView" "SummaryView"
check_no_reference "GuestSummaryView" "GuestSummaryView"
check_no_reference "FlatNodeButton" "FlatNodeButton"
check_no_reference "ThreeDButton" "ThreeDButton"
check_no_reference "LessonPlayerView" "LessonPlayerView\("
check_no_reference "SlideImageView" "SlideImageView"

echo ""

# ========================================
# 4. 关键逻辑检查
# ========================================
echo "🔧 阶段 4: 关键逻辑检查"
echo "----------------------------------------"

cd "$PROJECT_ROOT/ios/WildGrowth/WildGrowth"

# 检查 MapView 是否只使用 VerticalListLayout
echo -n "  ⏳ 检查 MapView 布局... "
if grep -q "WindingPathLayout\|WindingNodeUnit" MapView.swift 2>/dev/null; then
    echo -e "${RED}❌ 发现横版布局代码${NC}"
    FAILED=$((FAILED + 1))
else
    if grep -q "VerticalListLayout" MapView.swift 2>/dev/null; then
        echo -e "${GREEN}✅ 只使用竖屏布局${NC}"
        PASSED=$((PASSED + 1))
    else
        echo -e "${YELLOW}⚠️  未找到 VerticalListLayout${NC}"
        SKIPPED=$((SKIPPED + 1))
    fi
fi

# 检查 HomeView 是否只使用 VerticalScreenPlayerView
echo -n "  ⏳ 检查 HomeView 播放器... "
if grep -q "LessonPlayerView" HomeView.swift 2>/dev/null; then
    echo -e "${RED}❌ 发现 LessonPlayerView 引用${NC}"
    FAILED=$((FAILED + 1))
else
    if grep -q "VerticalScreenPlayerView" HomeView.swift 2>/dev/null; then
        echo -e "${GREEN}✅ 只使用竖屏播放器${NC}"
        PASSED=$((PASSED + 1))
    else
        echo -e "${YELLOW}⚠️  未找到 VerticalScreenPlayerView${NC}"
        SKIPPED=$((SKIPPED + 1))
    fi
fi

# 检查 CourseNavigation 是否还有 .player case
echo -n "  ⏳ 检查 CourseNavigation 枚举... "
if grep -q "case.*player" HomeView.swift 2>/dev/null; then
    echo -e "${YELLOW}⚠️  发现 .player case（可能需要移除）${NC}"
    SKIPPED=$((SKIPPED + 1))
else
    echo -e "${GREEN}✅ 无 .player case${NC}"
    PASSED=$((PASSED + 1))
fi

echo ""

# ========================================
# 5. 代码统计
# ========================================
echo "📊 阶段 5: 代码统计"
echo "----------------------------------------"

cd "$PROJECT_ROOT/ios/WildGrowth/WildGrowth"

# 统计 Swift 文件数量
SWIFT_FILES=$(find . -name "*.swift" -type f | wc -l | tr -d ' ')
echo "  📄 Swift 文件数量: $SWIFT_FILES"

# 统计代码行数（排除空行和注释）
CODE_LINES=$(find . -name "*.swift" -type f -exec cat {} \; | grep -v '^\s*$' | grep -v '^\s*//' | wc -l | tr -d ' ')
echo "  📝 代码行数（估算）: $CODE_LINES"

echo ""

# ========================================
# 6. 测试总结
# ========================================
echo "📋 测试总结"
echo "========================================"
echo -e "  ${GREEN}✅ 通过: $PASSED${NC}"
echo -e "  ${RED}❌ 失败: $FAILED${NC}"
echo -e "  ${YELLOW}⚠️  跳过: $SKIPPED${NC}"
echo ""

if [ $FAILED -eq 0 ]; then
    echo -e "${GREEN}🎉 所有测试通过！${NC}"
    exit 0
else
    echo -e "${RED}❌ 有测试失败，请检查${NC}"
    exit 1
fi