package telegram_test

import (
	"testing"

	"ldpost/shared/telegram"
)

func TestEscapeMarkdown(t *testing.T) {
	// All MarkdownV2 special chars must be escaped with backslash
	special := []rune{'_', '*', '[', ']', '(', ')', '~', '`', '>', '#', '+', '-', '=', '|', '{', '}', '.', '!'}

	for _, ch := range special {
		input := string(ch)
		got := telegram.EscapeMarkdown(input)
		want := "\\" + input
		if got != want {
			t.Errorf("EscapeMarkdown(%q) = %q, want %q", input, got, want)
		}
	}
}

func TestEscapeMarkdown_PlainText(t *testing.T) {
	cases := []struct {
		input string
		want  string
	}{
		{"hello world", "hello world"},
		{"", ""},
		{"abc123", "abc123"},
	}
	for _, c := range cases {
		got := telegram.EscapeMarkdown(c.input)
		if got != c.want {
			t.Errorf("EscapeMarkdown(%q) = %q, want %q", c.input, got, c.want)
		}
	}
}

func TestEscapeMarkdown_MixedContent(t *testing.T) {
	input := "Hello, world! How are you?"
	got := telegram.EscapeMarkdown(input)
	// '!' and '.' and '?' (not in special) — only '!' should be escaped
	// ',' not special, '!' is special, '.' is special, '?' not special
	// expected: "Hello, world\! How are you?"
	want := `Hello, world\! How are you?`
	if got != want {
		t.Errorf("EscapeMarkdown(%q)\n  got:  %q\n  want: %q", input, got, want)
	}
}

func TestEscapeMarkdown_CodeBlock(t *testing.T) {
	// Typical tech content
	input := "Use fmt.Println(\"hello\") in Go"
	got := telegram.EscapeMarkdown(input)
	// '.' is special → escaped
	// '(' and ')' are special → escaped
	// '"' is not special
	want := `Use fmt\.Println\("hello"\) in Go`
	if got != want {
		t.Errorf("EscapeMarkdown(%q)\n  got:  %q\n  want: %q", input, got, want)
	}
}

func TestNewBot(t *testing.T) {
	bot := telegram.NewBot("test-token", "123456")
	if bot == nil {
		t.Fatal("NewBot retornou nil")
	}
	if bot.Token != "test-token" {
		t.Errorf("Token: got %q, want %q", bot.Token, "test-token")
	}
	if bot.ChatID != "123456" {
		t.Errorf("ChatID: got %q, want %q", bot.ChatID, "123456")
	}
}