package cli

import (
	"context"
	"fmt"
	"strings"

	"git.morlana.online/f.weber/vault-tui/internal/vault"
)

// splitMountPath finds which configured mount a full logical path like
// "secret/team/prod/db" belongs to, and returns the mount plus the
// remaining path relative to it ("team/prod/db"). Mirrors how `vault kv`
// itself resolves a bare path against sys/internal/ui/mounts.
func splitMountPath(ctx context.Context, svc *vault.Service, full string) (vault.Mount, string, error) {
	full = strings.TrimPrefix(full, "/")
	mounts, err := svc.Mounts(ctx)
	if err != nil {
		return vault.Mount{}, "", fmt.Errorf("listing mounts: %w", err)
	}
	var best vault.Mount
	for _, m := range mounts {
		mp := strings.TrimSuffix(m.Path, "/")
		if full == mp || strings.HasPrefix(full, mp+"/") {
			if len(mp) > len(strings.TrimSuffix(best.Path, "/")) {
				best = m
			}
		}
	}
	if best.Path == "" {
		return vault.Mount{}, "", fmt.Errorf("no configured mount matches %q", full)
	}
	if !best.Supported() {
		return vault.Mount{}, "", fmt.Errorf("mount %q (type %s) is not supported by vault-tui", best.Path, best.Type)
	}
	rel := strings.TrimPrefix(full, strings.TrimSuffix(best.Path, "/"))
	rel = strings.TrimPrefix(rel, "/")
	return best, rel, nil
}