package rosa

import (
	"slices"

	"hakurei.app/internal/pkg"
)

var _perl = H("perl")

// MakeMakerHelper is the [Perl] MakeMaker helper.
type MakeMakerHelper struct {
	// Whether to skip the check target.
	SkipCheck bool
}

// extra returns perl.
func (*MakeMakerHelper) extra(int) P { return P{_perl, _make} }

// wantsChmod returns true.
func (*MakeMakerHelper) wantsChmod() bool { return true }

// wantsWrite returns true.
func (*MakeMakerHelper) wantsWrite() bool { return true }

// scriptEarly is a noop.
func (*MakeMakerHelper) scriptEarly() string { return "" }

// createDir returns false.
func (*MakeMakerHelper) createDir() bool { return false }

// wantsDir returns the zero value.
func (*MakeMakerHelper) wantsDir() string { return "" }

// script generates Makefile.PL-based build and test commands.
func (attr *MakeMakerHelper) script(t Toolchain, _ string) string {
	if attr == nil {
		attr = new(MakeMakerHelper)
	}

	script := `perl Makefile.PL \
	PREFIX=/system
make \
	` + jobsFlagE
	if !attr.SkipCheck && t.opts&OptSkipCheck == 0 {
		script += `
make \
	` + jobsFlagE + ` \
	test
`
	}
	script += "make DESTDIR=/work install\n"
	return script
}

// newViaPerlMakeMaker installs a perl module via Makefile.PL.
func (t Toolchain) newViaPerlMakeMaker(
	name, version string,
	source pkg.Artifact,
	patches []KV,
	extra ...ArtifactH,
) pkg.Artifact {
	return t.NewPackage("perl-"+name, version, source, &PackageAttr{
		Patches: patches,
	}, (*MakeMakerHelper)(nil), slices.Concat(extra, P{
		_perl,
	})...)
}