package main

import (
	"fmt"
	"regexp"
)

// planID is every id the mesh gives a plan: a merge's walk or batch (plan-<nanoseconds>) or a release
// (release-<nanoseconds>).
var planID = regexp.MustCompile(`^(plan|release)-[0-9]+$`)

// planIDArguments are the arguments of plans that name a plan. wait is among them for when it is declared
// (novox/hq issue 229); an argument not declared is refused before this is asked.
var planIDArguments = []string{"id", "wait", "stop", "close", "retry", "go"}

// plainPlanIDs refuses a plans call naming a plan by anything but a plan's id (novox/hq issue 561): checked
// once, where the call becomes a command line, so nothing else a caller sent reaches a command or the store.
func plainPlanIDs(given map[string]string) error {
	for _, arg := range planIDArguments {
		if id, named := given[arg]; named && !planID.MatchString(id) {
			return fmt.Errorf("plans %s: %q is not a plan's id (plan-<digits> or release-<digits>, as `plans` "+
				"lists them); nothing was done", arg, id)
		}
	}
	return nil
}