package service

import (
	"atsflare/common"
	"testing"
)

func TestIsVersionNewer(t *testing.T) {
	testCases := []struct {
		name     string
		current  string
		latest   string
		expected bool
	}{
		{name: "newer patch", current: "v1.2.3", latest: "v1.2.4", expected: true},
		{name: "same version", current: "v1.2.3", latest: "v1.2.3", expected: false},
		{name: "older remote", current: "v1.3.0", latest: "v1.2.9", expected: false},
		{name: "double digit segment", current: "v1.9.9", latest: "v1.10.0", expected: true},
		{name: "dev build", current: "dev", latest: "v0.4.0", expected: true},
	}

	for _, testCase := range testCases {
		t.Run(testCase.name, func(t *testing.T) {
			actual := isVersionNewer(testCase.current, testCase.latest)
			if actual != testCase.expected {
				t.Fatalf("unexpected compare result: current=%s latest=%s actual=%v expected=%v", testCase.current, testCase.latest, actual, testCase.expected)
			}
		})
	}
}

func TestBuildLatestServerReleaseView(t *testing.T) {
	originalVersion := common.Version
	common.Version = "v0.4.0"
	t.Cleanup(func() {
		common.Version = originalVersion
		serverUpgradeState.Lock()
		serverUpgradeState.inProgress = false
		serverUpgradeState.Unlock()
	})

	serverUpgradeState.Lock()
	serverUpgradeState.inProgress = true
	serverUpgradeState.Unlock()

	view := buildLatestServerReleaseView(&githubReleaseResponse{
		TagName:     "v0.5.0",
		Body:        "release notes",
		HTMLURL:     "https://github.com/Rain-kl/ATSFlare/releases/tag/v0.5.0",
		PublishedAt: "2026-03-11T00:00:00Z",
	})

	if view.CurrentVersion != "v0.4.0" {
		t.Fatalf("unexpected current version: %s", view.CurrentVersion)
	}
	if !view.HasUpdate {
		t.Fatal("expected has_update to be true")
	}
	if !view.InProgress {
		t.Fatal("expected in_progress to reflect upgrade state")
	}
	if view.TagName != "v0.5.0" {
		t.Fatalf("unexpected tag name: %s", view.TagName)
	}
}

func TestBuildLatestServerReleaseViewDevBuild(t *testing.T) {
	originalVersion := common.Version
	common.Version = "dev"
	t.Cleanup(func() {
		common.Version = originalVersion
		serverUpgradeState.Lock()
		serverUpgradeState.inProgress = false
		serverUpgradeState.Unlock()
	})

	view := buildLatestServerReleaseView(&githubReleaseResponse{
		TagName: "v0.5.0",
	})

	if view.HasUpdate {
		t.Fatal("expected dev build not to report update availability")
	}
	if view.UpgradeSupported {
		t.Fatal("expected dev build not to support self-upgrade")
	}
}