"""
验证结果数据结构

定义验证问题和验证结果的数据类。
"""

from dataclasses import dataclass, field
from typing import List


@dataclass
class ValidationIssue:
    """验证问题"""

    level: str  # "ERROR" | "WARNING" | "INFO"
    message: str
    location: str  # "幻灯片 2, 元素 3"
    code: str  # "ELEMENT_OUT_OF_BOUNDS"


@dataclass
class ValidationResult:
    """验证结果"""

    valid: bool  # 是否有 ERROR
    errors: List[ValidationIssue] = field(default_factory=list)
    warnings: List[ValidationIssue] = field(default_factory=list)
    infos: List[ValidationIssue] = field(default_factory=list)

    def has_errors(self) -> bool:
        """是否有错误"""
        return len(self.errors) > 0

    def format_output(self) -> str:
        """格式化为命令行输出"""
        lines = []

        lines.append("🔍 正在检查 YAML 文件...\n")

        # 错误
        if self.errors:
            lines.append(f"❌ 错误 ({len(self.errors)}):")
            for issue in self.errors:
                location_str = f"[{issue.location}] " if issue.location else ""
                lines.append(f"  {location_str}{issue.message}")
            lines.append("")

        # 警告
        if self.warnings:
            lines.append(f"⚠️  警告 ({len(self.warnings)}):")
            for issue in self.warnings:
                location_str = f"[{issue.location}] " if issue.location else ""
                lines.append(f"  {location_str}{issue.message}")
            lines.append("")

        # 提示
        if self.infos:
            lines.append(f"ℹ️  提示 ({len(self.infos)}):")
            for issue in self.infos:
                location_str = f"[{issue.location}] " if issue.location else ""
                lines.append(f"  {location_str}{issue.message}")
            lines.append("")

        # 总结
        if not self.errors and not self.warnings and not self.infos:
            lines.append("验证通过，未发现问题")
        else:
            summary_parts = []
            if self.errors:
                summary_parts.append(f"{len(self.errors)} 个错误")
            if self.warnings:
                summary_parts.append(f"{len(self.warnings)} 个警告")
            if self.infos:
                summary_parts.append(f"{len(self.infos)} 个提示")
            lines.append(f"检查完成: 发现 {', '.join(summary_parts)}")

        return "\n".join(lines)