package console

import (
	"strings"

	"github.com/carlosframework/platform/internal/domains"
)

// matchAccounts resolves one path/flag segment against the accounts the
// VIEWER belongs to, matching it as a sqid or a name — symmetrically, with
// no precedence between the two spaces. Precedence is how a reference
// silently changes meaning the day a colliding account appears; a multi-
// match is returned whole so the caller can be loud instead (picker page,
// CLI error). Names match case-insensitively; an account whose name equals
// its own sqid still counts once.
//
// The returned pointers address accts, so each match carries whatever
// AccountsFor filled in — the viewer's Role included.
func matchAccounts(accts []Account, seg string) []*Account {
	var out []*Account
	for i := range accts {
		if accts[i].Sqid == seg || strings.EqualFold(accts[i].Name, seg) {
			out = append(out, &accts[i])
		}
	}
	return out
}

// preferredSeg is the path segment the console GENERATES for an account:
// its name, when the name is slug-shaped and resolves uniquely among the
// viewer's own accounts; the sqid otherwise. Links and redirects use it —
// forms always post to the sqid path (page.Base), because a mutation must
// name its target exactly and prettiness is for links.
func preferredSeg(accts []Account, a *Account) string {
	if !domains.ValidAccountName(a.Name) {
		return a.Sqid
	}
	for i := range accts {
		if accts[i].ID == a.ID {
			continue
		}
		if strings.EqualFold(accts[i].Name, a.Name) || accts[i].Sqid == a.Name {
			return a.Sqid
		}
	}
	return a.Name
}