package tui

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

	tea "charm.land/bubbletea/v2"

	"lazyntfy/internal/config"
	"lazyntfy/internal/history"
	"lazyntfy/internal/ntfy"
	"lazyntfy/internal/store"
)

func sample() Model {
	m := New(config.App{
		DefaultHost: "https://ntfy.example",
		Auth:        config.Auth{Token: "tk_test"},
		Subs:        []config.Sub{{Origin: "https://ntfy.example", Name: "alerts", Auth: config.Auth{Token: "tk_test"}}},
	}, nil, ntfy.NewClient(), nil, nil)
	m.width = 120
	m.height = 30
	m.store.Put(store.Message{ID: "new", Time: 200, Topic: "alerts", Title: "DiskFull", Body: `{"status":"firing","commonLabels":{"alertname":"DiskFull","severity":"critical"}}`})
	m.store.Put(store.Message{ID: "old", Time: 100, Topic: "alerts", Body: "backup finished"})
	m = m.ensureSelection()
	return m
}

func TestViewShowsNewestAlert(t *testing.T) {
	view := sample().render()
	if !strings.Contains(view, "lazyntfy") || !strings.Contains(view, "DiskFull") || !strings.Contains(view, "firing") {
		t.Fatalf("%s", view)
	}
	lines := strings.Split(view, "\n")
	if len(lines) != 30 {
		t.Fatalf("height %d", len(lines))
	}
}

func TestMoveKeepsSelectionByID(t *testing.T) {
	m := sample()
	if m.selected["alerts"] != "new" {
		t.Fatalf("selected %s", m.selected["alerts"])
	}
	m = m.move(1)
	if m.selected["alerts"] != "old" {
		t.Fatalf("after down %s", m.selected["alerts"])
	}
	next, cmd := m.Update(tea.KeyPressMsg{Text: "q", Code: 'q'})
	if cmd == nil {
		t.Fatal("expected quit")
	}
	if next.(Model).selected["alerts"] != "old" {
		t.Fatal("quit changed selection")
	}
}

func TestFilterAndDelete(t *testing.T) {
	m := sample()
	m.filter = "backup"
	m = m.ensureSelection()
	if m.selected["alerts"] != "old" {
		t.Fatalf("filter selected %s", m.selected["alerts"])
	}
	if !strings.Contains(m.render(), "backup finished") {
		t.Fatal(m.render())
	}
	m = m.apply(ntfy.Notice{Event: &ntfy.Event{ID: "old", Event: "message_delete", Topic: "alerts"}})
	if len(m.store.List("alerts")) != 1 {
		t.Fatal("delete")
	}
	m = m.apply(ntfy.Notice{Event: &ntfy.Event{Event: "message_clear", Topic: "alerts"}})
	if len(m.store.List("alerts")) != 0 {
		t.Fatal("clear")
	}
}

func TestPublishRequiresMessage(t *testing.T) {
	m := sample()
	m.mode = modePublish
	m.formIdx = 3
	got, _ := m.updatePublish(tea.KeyPressMsg{Text: "enter", Code: tea.KeyEnter})
	if got.(Model).status != "message is empty" {
		t.Fatalf("status %q", got.(Model).status)
	}
}

func TestAddTopicUsesDefaultHost(t *testing.T) {
	m := sample()
	m.addInput.SetValue("backups")
	m = m.submitAdd()
	if len(m.subs) != 2 || m.subs[1].Name != "backups" || m.subs[1].Origin != "https://ntfy.example" {
		t.Fatalf("%+v", m.subs)
	}
	if m.subs[1].Auth.Token != "tk_test" {
		t.Fatal("auth not copied")
	}
}

func TestRejectsNonHTTPClick(t *testing.T) {
	if err := validateURL("file:///etc/passwd"); err == nil {
		t.Fatal("expected reject")
	}
	if err := validateURL("https://example.com/a"); err != nil {
		t.Fatal(err)
	}
}

func TestRestoresMessagesAndTopicFromHistory(t *testing.T) {
	db, err := history.Open(filepath.Join(t.TempDir(), "history.db"))
	if err != nil {
		t.Fatal(err)
	}
	defer db.Close()
	if err := db.SaveMessage("https://ntfy.example", store.Message{
		ID: "h1", Topic: "alerts", Time: 50, Title: "from disk",
	}); err != nil {
		t.Fatal(err)
	}
	if err := db.SetState("topic", "alerts"); err != nil {
		t.Fatal(err)
	}

	m := New(config.App{
		DefaultHost: "https://ntfy.example",
		Subs:        []config.Sub{{Origin: "https://ntfy.example", Name: "alerts"}},
	}, nil, ntfy.NewClient(), nil, db)
	if m.restored != 1 || len(m.store.List("alerts")) != 1 {
		t.Fatalf("restored %d messages %d", m.restored, len(m.store.List("alerts")))
	}
	if m.savedTopic != "alerts" || m.currentName() != "alerts" {
		t.Fatalf("saved %q current %q", m.savedTopic, m.currentName())
	}
	m.width, m.height = 120, 30
	if !strings.Contains(m.render(), "from disk") {
		t.Fatalf("restored message missing from view:\n%s", m.render())
	}
}