ContentEncoding

pub const ContentEncoding = enum {
    zstd,
    gzip,
    deflate,
    compress,
    identity,

    pub fn fromString(s: []const u8) ?ContentEncoding {
        const map = std.StaticStringMap(ContentEncoding).initComptime(.{
            .{ "zstd", .zstd },
            .{ "gzip", .gzip },
            .{ "x-gzip", .gzip },
            .{ "deflate", .deflate },
            .{ "compress", .compress },
            .{ "x-compress", .compress },
            .{ "identity", .identity },
        });
        return map.get(s);
    }

    pub fn minBufferCapacity(ce: ContentEncoding) usize {
        return switch (ce) {
            .zstd => std.compress.zstd.default_window_len,
            .gzip, .deflate => std.compress.flate.max_window_len,
            .compress, .identity => 0,
        };
    }
}