package virtiofsd

import (
	"path/filepath"
	"qvm/internal/config"
)

// Mount represents a single virtiofsd mount configuration
type Mount struct {
	Tag        string // Mount tag (e.g., "cargo_home", "ws_abc12345")
	HostPath   string // Path on host to share
	SocketPath string // Path to virtiofsd socket
}

// DefaultCacheMounts returns the standard cache mounts for cargo, pnpm, and sccache.
// These are shared across all projects and mounted at VM start.
func DefaultCacheMounts() []Mount {
	return []Mount{
		{
			Tag:        "cargo_home",
			HostPath:   config.CargoHome,
			SocketPath: filepath.Join(config.StateDir, "cargo_home.sock"),
		},
		{
			Tag:        "cargo_target",
			HostPath:   config.CargoTarget,
			SocketPath: filepath.Join(config.StateDir, "cargo_target.sock"),
		},
		{
			Tag:        "pnpm_store",
			HostPath:   config.PnpmStore,
			SocketPath: filepath.Join(config.StateDir, "pnpm_store.sock"),
		},
		{
			Tag:        "sccache",
			HostPath:   config.Sccache,
			SocketPath: filepath.Join(config.StateDir, "sccache.sock"),
		},
	}
}

// WorkspaceMount creates a Mount configuration for a single workspace.
// mountTag should be the workspace's mount tag (e.g., "ws_abc12345")
// hostPath is the absolute path on the host to share
func WorkspaceMount(mountTag, hostPath string) Mount {
	return Mount{
		Tag:        mountTag,
		HostPath:   hostPath,
		SocketPath: filepath.Join(config.StateDir, mountTag+".sock"),
	}
}