package main

import (
	"path/filepath"
	"strings"
	"testing"
	"unicode/utf8"

	"github.com/floatpane/matcha/fetcher"
)

func TestSanitizeFilenameTruncatesCJKOnUTF8Boundary(t *testing.T) {
	name := strings.Repeat("文", 100) + ".txt"

	got := sanitizeFilename(name)

	if !utf8.ValidString(got) {
		t.Fatalf("sanitizeFilename returned invalid UTF-8: %q", got)
	}
	if len(got) > 255 {
		t.Fatalf("sanitizeFilename returned %d bytes, want at most 255", len(got))
	}
	if filepath.Ext(got) != ".txt" {
		t.Fatalf("sanitizeFilename lost extension: got %q", got)
	}
}

func TestSanitizeFilenameTruncatesEmojiOnUTF8Boundary(t *testing.T) {
	name := strings.Repeat("🚀", 80) + ".log"

	got := sanitizeFilename(name)

	if !utf8.ValidString(got) {
		t.Fatalf("sanitizeFilename returned invalid UTF-8: %q", got)
	}
	if len(got) > 255 {
		t.Fatalf("sanitizeFilename returned %d bytes, want at most 255", len(got))
	}
	if filepath.Ext(got) != ".log" {
		t.Fatalf("sanitizeFilename lost extension: got %q", got)
	}
}

func TestParseGlobalFlagsEnablesLogPanel(t *testing.T) {
	args, _, show := parseGlobalFlags([]string{"matcha", "--debug", "--logs", "--version"})
	if !show {
		t.Fatal("expected log panel flag to be enabled")
	}
	if got := strings.Join(args, " "); got != "matcha --version" {
		t.Fatalf("args = %q, want %q", got, "matcha --version")
	}
}

func TestParseGlobalFlagsDoesNotConsumeSubcommandFlags(t *testing.T) {
	args, _, show := parseGlobalFlags([]string{"matcha", "send", "--logs"})
	if show {
		t.Fatal("did not expect log panel flag after subcommand to be consumed")
	}
	if got := strings.Join(args, " "); got != "matcha send --logs" {
		t.Fatalf("args = %q, want %q", got, "matcha send --logs")
	}
}

func TestUnreadBadgeCountDeduplicatesOverlappingStores(t *testing.T) {
	email := fetcher.Email{UID: 42, AccountID: "acct-a"}
	got := unreadBadgeCount(
		map[string][]fetcher.Email{
			"acct-a": {email},
		},
		map[string][]fetcher.Email{
			folderInbox: {email},
		},
	)

	if got != 1 {
		t.Fatalf("unreadBadgeCount() = %d, want 1", got)
	}
}