// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0

package tomlfile

import (
	"os"
	"path/filepath"
	"strings"
	"testing"

	"sourcedock.dev/petrbalvin/interpres/v2"
)

func TestWriteAndReload(t *testing.T) {
	path := filepath.Join(t.TempDir(), "sub", "data.toml")
	if err := Write(path, "users", []map[string]any{
		{"username": "admin", "role": "admin"},
	}); err != nil {
		t.Fatalf("Write: %v", err)
	}
	info, err := os.Stat(path)
	if err != nil {
		t.Fatalf("stat: %v", err)
	}
	if info.Mode().Perm() != 0o600 {
		t.Fatalf("mode = %v", info.Mode().Perm())
	}
	raw, err := os.ReadFile(path)
	if err != nil {
		t.Fatalf("read: %v", err)
	}
	if !strings.Contains(string(raw), "[[users]]") {
		t.Fatalf("content = %s", raw)
	}
	parsed, err := interpres.ParseMap(raw)
	if err != nil {
		t.Fatalf("parse: %v", err)
	}
	tables := Tables(parsed["users"])
	if len(tables) != 1 || tables[0]["username"] != "admin" {
		t.Fatalf("tables = %v", tables)
	}
}

func TestTablesShapes(t *testing.T) {
	if Tables(nil) != nil {
		t.Fatal("nil input should yield nil")
	}
	if got := Tables("nope"); got != nil {
		t.Fatalf("got = %v", got)
	}
	fromAny := Tables([]any{map[string]any{"a": 1}, "skip"})
	if len(fromAny) != 1 || fromAny[0]["a"] != 1 {
		t.Fatalf("fromAny = %v", fromAny)
	}
	fromMaps := Tables([]map[string]any{{"b": 2}})
	if len(fromMaps) != 1 || fromMaps[0]["b"] != 2 {
		t.Fatalf("fromMaps = %v", fromMaps)
	}
}

func TestStringsShapes(t *testing.T) {
	if Strings(nil) != nil {
		t.Fatal("nil input should yield nil")
	}
	if Strings(42) != nil {
		t.Fatal("non-array input should yield nil")
	}
	got := Strings([]any{"a", 1, "b"})
	if len(got) != 3 || got[0] != "a" || got[2] != "b" {
		t.Fatalf("got = %v", got)
	}
	if direct := Strings([]string{"x"}); len(direct) != 1 || direct[0] != "x" {
		t.Fatalf("direct = %v", direct)
	}
}