const std = @import("std");
const assert = std.debug.assert;

// TODO: use `EnumFieldStruct` for `str_to_tag_mapping`
pub fn EnumStringUtils(comptime TargetEnum: type, str_to_tag_mapping: anytype) type {
    if (str_to_tag_mapping.len != @typeInfo(TargetEnum).Enum.fields.len) {
        @compileLog("Mapping is not exhaustive");
    }

    return struct {
        pub fn fromString(str: []const u8) ?TargetEnum {
            const EnumMapping = std.StaticStringMap(TargetEnum).initComptime(str_to_tag_mapping);
            return EnumMapping.get(str);
        }

        pub fn toString(value: TargetEnum) []const u8 {
            inline for (str_to_tag_mapping) |mapping| {
                if (mapping[1] == value) {
                    return mapping[0];
                }
            }
            unreachable;
        }
    };
}