namespace MoShiro.Protocol;

/// <summary>构建信息的人能读的形式（启动时打进日志）；常量部分由 MoShiro.Protocol.csproj 的 WriteBuildInfo 在构建时生成。</summary>
public static partial class BuildInfo
{
    /// <summary>版本、tag、提交、构建时间的字段，没有的（本地构建不设环境变量）写 unknown。</summary>
    public static (string Key, object? Value)[] Fields { get; } =
    [
        ("version", Or(Version)),
        ("tag", Or(Tag)),
        ("commit", Or(Commit)),
        ("built_at", Or(BuiltAt)),
    ];

    /// <summary>一行摘要，例如：0.4.1-dev.2-a3338e1 (tag v0.4.1-dev.2-a3338e1, commit a3338e1b2c, built 2026-10-09T03:00:00Z)。</summary>
    public static string Summary => $"{Or(Version)} (tag {Or(Tag)}, commit {Or(Commit)}, built {Or(BuiltAt)})";

    private static string Or(string value) => string.IsNullOrWhiteSpace(value) ? "unknown" : value;
}