resolve

var CSharpConfig = LangConfig{
	StdlibCheck: func(topLevel string) bool {
		return topLevel == "System" || topLevel == "Microsoft"
	},
	IsRelative: nil,
	IsLocal:    nil,
	ExtractPkgName: func(path string) string {

		parts := strings.Split(path, ".")
		if len(parts) >= 2 {
			return parts[0] + "." + parts[1]
		}
		return path
	},
	Separator: ".",
}

var JavaConfig = LangConfig{
	StdlibCheck: func(topLevel string) bool {
		return topLevel == "java" || topLevel == "javax"
	},
	IsRelative: nil,
	IsLocal: func(path, localContext string) bool {
		if localContext == "" {
			return false
		}
		parts := strings.Split(path, ".")
		localParts := strings.Split(localContext, ".")
		if len(localParts) >= 2 && len(parts) >= 2 &&
			localParts[0] == parts[0] && localParts[1] == parts[1] {
			return true
		}
		return false
	},
	ExtractPkgName: func(path string) string {

		parts := strings.Split(path, ".")
		if len(parts) >= 2 {
			return parts[0] + "." + parts[1]
		}
		return path
	},
	Separator: ".",
}

var PythonConfig = LangConfig{
	StdlibCheck: func(topLevel string) bool {
		return PythonStdlibSet[topLevel]
	},
	IsRelative: func(path string) bool {
		return strings.HasPrefix(path, ".")
	},
	IsLocal: nil,
	ExtractPkgName: func(path string) string {

		if idx := strings.Index(path, "."); idx > 0 {
			return path[:idx]
		}
		return path
	},
	Separator: ".",
}

var PythonStdlibSet = map[string]bool{
	"os": true, "sys": true, "re": true, "io": true, "json": true,
	"math": true, "time": true, "datetime": true, "collections": true,
	"itertools": true, "functools": true, "pathlib": true, "typing": true,
	"abc": true, "ast": true, "asyncio": true, "base64": true,
	"contextlib": true, "copy": true, "csv": true, "dataclasses": true,
	"enum": true, "errno": true, "glob": true, "hashlib": true,
	"http": true, "importlib": true, "inspect": true, "logging": true,
	"multiprocessing": true, "operator": true, "pickle": true,
	"platform": true, "pprint": true, "queue": true, "random": true,
	"shutil": true, "signal": true, "socket": true, "sqlite3": true,
	"string": true, "struct": true, "subprocess": true, "tempfile": true,
	"textwrap": true, "threading": true, "traceback": true, "unittest": true,
	"urllib": true, "uuid": true, "warnings": true, "weakref": true,
	"xml": true, "zipfile": true, "argparse": true, "configparser": true,
	"email": true, "html": true, "ssl": true, "secrets": true,
	"statistics": true, "types": true,
}

var RustConfig = LangConfig{
	StdlibCheck: func(topLevel string) bool {
		switch topLevel {
		case "std", "core", "alloc":
			return true
		}
		return false
	},
	IsRelative: func(path string) bool {
		parts := strings.SplitN(path, "::", 2)
		if len(parts) == 0 {
			return false
		}
		switch parts[0] {
		case "crate", "super", "self":
			return true
		}
		return false
	},
	IsLocal: nil,
	ExtractPkgName: func(path string) string {

		if idx := strings.Index(path, "::"); idx > 0 {
			return path[:idx]
		}
		return path
	},
	Separator: "::",
}

var TypeScriptConfig = LangConfig{
	StdlibCheck: nil,
	IsRelative: func(path string) bool {
		return strings.HasPrefix(path, ".") || strings.HasPrefix(path, "/")
	},
	IsLocal: nil,
	ExtractPkgName: func(path string) string {

		if strings.HasPrefix(path, "@") {
			parts := strings.SplitN(path, "/", 3)
			if len(parts) >= 2 {
				return parts[0] + "/" + parts[1]
			}
			return path
		}

		if idx := strings.Index(path, "/"); idx > 0 {
			return path[:idx]
		}
		return path
	},
	Separator: "/",
}