package orchestrator

import "testing"

func names(ps []folderPlan) []string {
	out := make([]string, len(ps))
	for i, p := range ps {
		out[i] = p.src + "->" + p.dst
	}
	return out
}

func TestPlanFolders(t *testing.T) {
	folders := []string{"INBOX", "Спам", "Trash", "Sent"}

	// Empty config: every folder syncs to its own name, in order.
	got := planFolders(folders, nil, nil)
	if len(got) != 4 || got[0].src != "INBOX" || got[0].dst != "INBOX" {
		t.Fatalf("empty config: %v", names(got))
	}

	// Rename + exclusion.
	got = planFolders(folders,
		map[string]string{"Спам": "Spam"},
		[]string{"Trash"})
	if len(got) != 3 {
		t.Fatalf("want 3 plans (Trash excluded), got %v", names(got))
	}
	for _, p := range got {
		if p.src == "Trash" {
			t.Fatalf("excluded folder present: %v", names(got))
		}
		if p.src == "Спам" && p.dst != "Spam" {
			t.Fatalf("rename not applied: %v", names(got))
		}
		if p.src == "INBOX" && p.dst != "INBOX" {
			t.Fatalf("unmapped folder should keep its name: %v", names(got))
		}
	}
}