#!/usr/bin/env sh
# CI 模板验证脚本

set -eu

echo "========================================"
echo "🔧 CI 模板验证"
echo "========================================"

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
PLAYBOOK_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
TEMPLATES_DIR="$PLAYBOOK_ROOT/templates/ci"

VALIDATION_PASSED=0
VALIDATION_FAILED=0
ERRORS_FILE="/tmp/ci_template_validation_errors.txt"
REPORT_FILE="$SCRIPT_DIR/ci_validation_report.txt"

> "$ERRORS_FILE"
> "$REPORT_FILE"

echo "📁 模板目录: $TEMPLATES_DIR"
echo ""

# ============================================
# 辅助函数
# ============================================

validate_file_exists() {
    local file="$1"
    local description="$2"

    if [ -f "$file" ]; then
        echo "  ✅ $description: $(basename "$file")"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
        return 0
    else
        echo "  ❌ $description: $(basename "$file") - 文件不存在"
        echo "文件不存在: $file" >> "$ERRORS_FILE"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
        return 1
    fi
}

validate_yaml_syntax() {
    local file="$1"
    local description="$2"

    if ! command -v yamllint >/dev/null 2>&1; then
        echo "  ⚠️  $description: 跳过（yamllint 未安装）"
        return 0
    fi

    if yamllint -d relaxed "$file" >/dev/null 2>&1; then
        echo "  ✅ $description: YAML 语法正确"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
        return 0
    else
        echo "  ❌ $description: YAML 语法错误"
        echo "YAML 语法错误: $file" >> "$ERRORS_FILE"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
        return 1
    fi
}

validate_workflow_structure() {
    local file="$1"

    echo "  📋 检查 workflow 结构:"

    # 检查必要字段
    if grep -q "^name:" "$file"; then
        echo "    ✓ 包含 name 字段"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    else
        echo "    ✗ 缺少 name 字段"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
    fi

    if grep -q "^on:" "$file"; then
        echo "    ✓ 包含 on 触发器"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    else
        echo "    ✗ 缺少 on 触发器"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
    fi

    if grep -q "^jobs:" "$file"; then
        echo "    ✓ 包含 jobs 定义"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    else
        echo "    ✗ 缺少 jobs 定义"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
    fi

    # 检查 runs-on
    if grep -q "runs-on:" "$file"; then
        runner=$(grep "runs-on:" "$file" | head -1 | awk '{print $2}')
        echo "    ✓ 配置了 runner: $runner"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    else
        echo "    ✗ 缺少 runs-on 配置"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
    fi

    # 检查 steps
    if grep -q "steps:" "$file"; then
        step_count=$(grep -c "^      - name:" "$file" || echo 0)
        echo "    ✓ 包含 $step_count 个步骤"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    else
        echo "    ✗ 缺少 steps 定义"
        VALIDATION_FAILED=$((VALIDATION_FAILED + 1))
    fi
}

# ============================================
# 查找并验证 Gitea workflow 文件
# ============================================

echo "🔍 查找 Gitea workflow 文件"
GITEA_WORKFLOWS_DIR="$TEMPLATES_DIR/gitea/.gitea/workflows"

if [ ! -d "$GITEA_WORKFLOWS_DIR" ]; then
    echo "⚠️  Gitea workflows 目录不存在: $GITEA_WORKFLOWS_DIR"
    echo "跳过 Gitea workflow 验证"
else
    WORKFLOW_FILES=$(find "$GITEA_WORKFLOWS_DIR" -name "*.yml" -o -name "*.yaml" 2>/dev/null || true)

    if [ -z "$WORKFLOW_FILES" ]; then
        echo "⚠️  未找到 Gitea workflow 文件"
    else
        for workflow in $WORKFLOW_FILES; do
            echo ""
            echo "🔍 验证 $(basename "$workflow")"

            if validate_file_exists "$workflow" "$(basename "$workflow")"; then
                # 验证 YAML 语法
                validate_yaml_syntax "$workflow" "$(basename "$workflow")"

                # 验证 workflow 结构
                validate_workflow_structure "$workflow"

                # 检查是否包含中文注释（符合项目风格）
                if grep -q "# .*[\u4e00-\u9fa5]" "$workflow" 2>/dev/null || grep -qP "[\x{4e00}-\x{9fa5}]" "$workflow" 2>/dev/null; then
                    echo "    ✓ 包含中文注释（符合项目风格）"
                    VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
                fi

                # 检查配置区域标记
                if grep -q "# ====.*配置.*====" "$workflow"; then
                    echo "    ✓ 包含配置区域标记"
                    VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
                fi

                # 检查环境变量配置
                if grep -q "^env:" "$workflow"; then
                    echo "    ✓ 包含环境变量配置"
                    VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
                fi
            fi
        done
    fi
fi

echo ""

# ============================================
# 查找并验证 GitHub Actions workflow 文件
# ============================================

echo "🔍 查找 GitHub Actions workflow 文件"
GITHUB_WORKFLOWS_DIR="$TEMPLATES_DIR/github/.github/workflows"

if [ -d "$GITHUB_WORKFLOWS_DIR" ]; then
    WORKFLOW_FILES=$(find "$GITHUB_WORKFLOWS_DIR" -name "*.yml" -o -name "*.yaml" 2>/dev/null || true)

    if [ -n "$WORKFLOW_FILES" ]; then
        for workflow in $WORKFLOW_FILES; do
            echo ""
            echo "🔍 验证 $(basename "$workflow")"

            if validate_file_exists "$workflow" "$(basename "$workflow")"; then
                # 验证 YAML 语法
                validate_yaml_syntax "$workflow" "$(basename "$workflow")"

                # 验证 workflow 结构
                validate_workflow_structure "$workflow"
            fi
        done
    fi
else
    echo "ℹ️  GitHub Actions workflows 目录不存在（可选）"
fi

echo ""

# ============================================
# 验证特定 workflow 模板
# ============================================

echo "🔍 验证特定 workflow 模板"

# 检查 standards-check workflow
STANDARDS_CHECK="$GITEA_WORKFLOWS_DIR/standards-check.yml"
if [ -f "$STANDARDS_CHECK" ]; then
    echo ""
    echo "📋 验证 standards-check.yml:"

    # 检查是否包含格式化检查
    if grep -q "格式化\|format" "$STANDARDS_CHECK"; then
        echo "  ✓ 包含格式化检查"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    fi

    # 检查是否包含 lint 检查
    if grep -q "lint\|检查" "$STANDARDS_CHECK"; then
        echo "  ✓ 包含 lint 检查"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    fi
else
    echo "ℹ️  未找到 standards-check.yml（可选）"
fi

# 检查 test workflow
TEST_WORKFLOW="$GITEA_WORKFLOWS_DIR/test.yml"
if [ -f "$TEST_WORKFLOW" ]; then
    echo ""
    echo "📋 验证 test.yml:"

    # 检查是否包含测试步骤
    if grep -q "测试\|test" "$TEST_WORKFLOW"; then
        echo "  ✓ 包含测试步骤"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    fi

    # 检查是否配置了测试矩阵
    if grep -q "strategy:" "$TEST_WORKFLOW" && grep -q "matrix:" "$TEST_WORKFLOW"; then
        echo "  ✓ 配置了测试矩阵"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
    fi
else
    echo "ℹ️  未找到 test.yml（可选）"
fi

echo ""

# ============================================
# 验证 README 文档
# ============================================

echo "🔍 验证 CI 模板文档"

if [ -d "$TEMPLATES_DIR" ]; then
    # 查找 README
    README_FILE=""
    for name in README.md readme.md README README.txt; do
        if [ -f "$TEMPLATES_DIR/$name" ]; then
            README_FILE="$TEMPLATES_DIR/$name"
            break
        fi
    done

    if [ -n "$README_FILE" ]; then
        echo "  ✅ 找到说明文档: $(basename "$README_FILE")"
        VALIDATION_PASSED=$((VALIDATION_PASSED + 1))

        # 检查文档内容
        if grep -qi "使用\|usage\|how to" "$README_FILE"; then
            echo "    ✓ 包含使用说明"
            VALIDATION_PASSED=$((VALIDATION_PASSED + 1))
        fi
    else
        echo "  ⚠️  未找到 README 文档（建议添加）"
    fi
fi

echo ""

# ============================================
# 生成验证报告
# ============================================

echo "========================================"
echo "📊 验证结果统计"
echo "========================================"
echo "✅ 通过: $VALIDATION_PASSED"
echo "❌ 失败: $VALIDATION_FAILED"

if [ $((VALIDATION_PASSED + VALIDATION_FAILED)) -gt 0 ]; then
    echo "📈 通过率: $(awk "BEGIN {printf \"%.1f\", ($VALIDATION_PASSED * 100.0) / ($VALIDATION_PASSED + $VALIDATION_FAILED)}")%"
else
    echo "📈 通过率: N/A (无测试项)"
fi

echo ""

# 写入报告文件
{
    echo "CI 模板验证报告"
    echo "===================="
    echo ""
    echo "验证时间: $(date '+%Y-%m-%d %H:%M:%S')"
    echo "模板目录: $TEMPLATES_DIR"
    echo ""
    echo "统计结果:"
    echo "  通过: $VALIDATION_PASSED"
    echo "  失败: $VALIDATION_FAILED"
    if [ $((VALIDATION_PASSED + VALIDATION_FAILED)) -gt 0 ]; then
        echo "  通过率: $(awk "BEGIN {printf \"%.1f\", ($VALIDATION_PASSED * 100.0) / ($VALIDATION_PASSED + $VALIDATION_FAILED)}")%"
    fi
    echo ""
    if [ -s "$ERRORS_FILE" ]; then
        echo "错误详情:"
        cat "$ERRORS_FILE"
    fi
} > "$REPORT_FILE"

echo "📄 详细报告: $REPORT_FILE"
echo "========================================"

# 清理临时文件
rm -f "$ERRORS_FILE"

# 返回结果
if [ "$VALIDATION_FAILED" -eq 0 ]; then
    echo "✅ 所有 CI 模板验证通过"
    exit 0
else
    echo "❌ CI 模板验证失败 ($VALIDATION_FAILED 个错误)"
    exit 1
fi