package app

import (
	"bytes"
	"testing"
)

func TestPDFHeader(t *testing.T) {
	end := int64(3_600_000)
	pdf := makePDF([]Entry{{ID: "x", Client: "ACME", Activity: "Arbeit", StartMS: 0, EndMS: &end}}, Settings{RoundingMinutes: 1, TimeFormat: "24", Timezone: "UTC"}, User{DisplayName: "Test"}, false)
	if !bytes.HasPrefix(pdf, []byte("%PDF-1.4")) {
		t.Fatal("missing PDF header")
	}
	if !bytes.Contains(pdf, []byte("xref")) {
		t.Fatal("missing xref")
	}
}

func TestCSVCompactOmitsActivity(t *testing.T) {
	end := int64(3_600_000)
	b, err := makeCSV([]Entry{{ID: "x", Client: "ACME", Activity: "Geheim", StartMS: 0, EndMS: &end}}, Settings{RoundingMinutes: 1, TimeFormat: "24", Timezone: "UTC"}, true)
	if err != nil {
		t.Fatal(err)
	}
	if bytes.Contains(b, []byte("Geheim")) {
		t.Fatal("compact CSV contains activity")
	}
}

func TestServiceReportPDFContainsSignatureFields(t *testing.T) {
	end := int64(3_600_000)
	pdf := makeServiceReportPDF(
		[]Entry{{ID: "x", Client: "ACME", Activity: "Router geprüft und Firmware aktualisiert", StartMS: 0, EndMS: &end}},
		Settings{RoundingMinutes: 1, TimeFormat: "24", Timezone: "UTC"},
		User{DisplayName: "Max Techniker", Username: "max"},
		serviceReportMeta{Client: "ACME", Contact: "Erika Kunde", OrderNumber: "SR-42", ReportDate: "14.08.2026"},
	)
	for _, want := range [][]byte{[]byte("%PDF-1.4"), []byte("SERVICE-BERICHT"), []byte("ACME"), []byte("Gesamtdauer"), []byte("Unterschrift Kunde"), []byte("Unterschrift Techniker")} {
		if !bytes.Contains(pdf, want) {
			t.Fatalf("service report missing %q", want)
		}
	}
}

func TestWrapPDFText(t *testing.T) {
	lines := wrapPDFText("eins zwei drei vier", 9)
	if len(lines) < 2 {
		t.Fatalf("expected wrapped lines, got %#v", lines)
	}
	for _, line := range lines {
		if len([]rune(line)) > 9 {
			t.Fatalf("line too long: %q", line)
		}
	}
}