// This file is part of the happyDomain (R) project.
// Copyright (c) 2020-2026 happyDomain
// Authors: Pierre-Olivier Mercier, et al.

package checker

import (
	"testing"

	sdk "git.happydns.org/checker-sdk-go/checker"
)

func TestHTTPSRedirectRule_NoProbes(t *testing.T) {
	data := &HTTPData{Probes: []HTTPProbe{httpsProbe("a:443")}}
	states := runRule(t, &httpsRedirectRule{}, data, nil)
	mustStatus(t, states, sdk.StatusUnknown)
}

func TestHTTPSRedirectRule_OKViaFinalURL(t *testing.T) {
	p := httpProbe("a:80")
	p.StatusCode = 301
	p.FinalURL = "https://example.test/"
	states := runRule(t, &httpsRedirectRule{}, &HTTPData{Probes: []HTTPProbe{p}}, nil)
	mustStatus(t, states, sdk.StatusOK)
	if !hasCode(states, "http.https_redirect.ok") {
		t.Errorf("expected redirect.ok: %+v", states)
	}
}

func TestHTTPSRedirectRule_OKViaRedirectChain(t *testing.T) {
	// FinalURL empty (non-following CheckRedirect path): fallback to last redirect step.
	p := httpProbe("a:80")
	p.StatusCode = 308
	p.FinalURL = ""
	p.RedirectChain = []RedirectStep{{From: "http://example.test/", To: "https://example.test/"}}
	states := runRule(t, &httpsRedirectRule{}, &HTTPData{Probes: []HTTPProbe{p}}, nil)
	mustStatus(t, states, sdk.StatusOK)
}

func TestHTTPSRedirectRule_NoRedirect_Required(t *testing.T) {
	p := httpProbe("a:80")
	p.StatusCode = 200
	p.FinalURL = "http://example.test/"
	states := runRule(t, &httpsRedirectRule{}, &HTTPData{Probes: []HTTPProbe{p}}, sdk.CheckerOptions{OptionRequireHTTPS: true})
	mustStatus(t, states, sdk.StatusWarn)
	if !hasCode(states, "http.no_https_redirect") {
		t.Errorf("expected no_https_redirect: %+v", states)
	}
}

func TestHTTPSRedirectRule_NoRedirect_NotRequired(t *testing.T) {
	p := httpProbe("a:80")
	p.StatusCode = 200
	p.FinalURL = "http://example.test/"
	states := runRule(t, &httpsRedirectRule{}, &HTTPData{Probes: []HTTPProbe{p}}, sdk.CheckerOptions{OptionRequireHTTPS: false})
	mustStatus(t, states, sdk.StatusInfo)
	if !hasCode(states, "http.plain_http_served") {
		t.Errorf("expected plain_http_served: %+v", states)
	}
}

func TestHTTPSRedirectRule_SkipsUnreachable(t *testing.T) {
	// HTTP not running on this IP: reachability rule handles it; redirect rule must skip.
	p := httpProbe("a:80")
	p.TCPConnected = false
	p.StatusCode = 0
	states := runRule(t, &httpsRedirectRule{}, &HTTPData{Probes: []HTTPProbe{p}}, nil)
	mustStatus(t, states, sdk.StatusOK)
	if !hasCode(states, "http.https_redirect.ok") {
		t.Errorf("unreachable HTTP should leave redirect rule with summary OK, got %+v", states)
	}
}