LayoutPath.cpp

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#include "Ui/LayoutPath.hpp"
 
#include <format>
 
namespace VoltMod
{
 
static constexpr std::string_view SourceExtension = ".xml";
 
static Error NotSourceXml(std::string_view layout)
{
    return Error::Invalid(std::format("'{}' must name the layout's source .xml, not the compiled resource", layout));
}
 
Result<LayoutPath> LayoutPath::Parse(std::string_view layout)
{
    if (layout.empty())
    {
        return std::unexpected(Error::Invalid("a layout name is required"));
    }
 
    const bool isSourceXml = layout.ends_with(SourceExtension);
 
    if (!layout.contains('/'))
    {
        // Any extension but .xml is a compiled resource name or a typo; appending .xml cannot resolve it.
        if (layout.contains('.') && !isSourceXml)
        {
            return std::unexpected(NotSourceXml(layout));
        }
 
        return LayoutPath(std::format("{}{}{}", Directory, layout, isSourceXml ? "" : SourceExtension));
    }
 
    if (!layout.starts_with(Directory))
    {
        return std::unexpected(Error::Invalid(std::format(
            "'{}' is outside {}, the only directory the addon whitelist allows layouts in", layout, Directory)));
    }
 
    if (!isSourceXml)
    {
        return std::unexpected(NotSourceXml(layout));
    }
 
    return LayoutPath(std::string(layout));
}
 
std::string_view LayoutPath::Name() const noexcept
{
    std::string_view name = _resource;
    name.remove_prefix(name.rfind('/') + 1);
    name.remove_suffix(SourceExtension.size());
    return name;
}
 
}  // namespace VoltMod