package.go

package main

import (
	"fmt"

	"github.com/tillberg/alog"
	"github.com/tillberg/stringset"
)

type Package struct {
	Name            string // Full path of import within GOPATH, including .../vendor/ if present
	Target          Target
	State           PackageState // Current state of this Package (idle/building/ready/etc)
	ShouldBuild     bool
	PossibleImports *stringset.StringSet // List of all possible imports (vendor-exploded)
	FileChange      bool
}

func (p *Package) Key() string {
	targetStr := p.Target.String()
	if targetStr == "local" {
		return p.Name
	}
	return fmt.Sprintf("%s:%s", p.Name, targetStr)
}

type Target struct {
	OSArch OSArch
	Mode   string
}

func (t Target) String() string {
	osArch := t.OSArch.String()
	if osArch == "" {
		return t.Mode
	}
	if t.Mode == "" {
		return osArch
	}
	return fmt.Sprintf("%s:%s", osArch, t.Mode)
}

type OSArch struct {
	OS   string
	Arch string
}

func (o OSArch) IsLocal() bool {
	return o.OS == "" && o.Arch == ""
}

func (o OSArch) String() string {
	if o.IsLocal() {
		return "local"
	}
	return fmt.Sprintf("%s_%s", o.OS, o.Arch)
}

func (o OSArch) ZigArchStr() string {
	switch o.Arch {
	case "amd64":
		return "x86_64"
	case "386":
		return "i386"
	default:
		alog.Panicf("Unknown arch %s", o.Arch)
	}
	panic("unreachable")
}