package console

import (
	"context"
	"fmt"
	"net/http"
	"net/url"
	"strings"
	"testing"
	"time"

	"github.com/carlosframework/platform/internal/registry"
	"github.com/carlosframework/platform/internal/rolloutwords"
	"github.com/carlosframework/platform/internal/status"
)

// Astra plan 6 R1 #8: the retry confirmation promises no fallback. A retry
// that fails in hold mode leaves the instance down, so "stays on its last
// good build" was false there; the host is held again either way.
func TestBrowserRetryConfirmationPromisesNoFallback(t *testing.T) {
	fx := heldFixture(t)
	c := signInPaul(t, fx)
	csrf := sessionToken(t, fx, c)
	code, _, body := postForm(t, c, fx.u("/apps/kass/instances/"+heldHost+"/retry"), url.Values{"csrf": {csrf}})
	want := "This clears the failure hold on " + heldHost + ". Its next attempt at v2 runs as a canary. If that fails too, " + heldHost + " is held again."
	if code != http.StatusOK || !strings.Contains(body, want) {
		t.Fatalf("confirm = %d, lacks %q", code, want)
	}
	if strings.Contains(body, "last good build") {
		t.Fatal("the confirmation still promises a fallback to the last good build")
	}
}

// Astra plan 6 R1 #8: a hold-mode failure leaves nothing serving
// (attempt down), so the page's hold row must not say the instance "stays
// on" a build there. Both renders: a held instance that serves its good
// build keeps the hold text; a down one gets the down text.
func TestInstancePageHoldTextTellsDownFromHeld(t *testing.T) {
	fx := newConsoleFixture(t)
	const down = "down.kass.carlosapp.dev"
	for _, h := range []string{heldHost, down} {
		fx.addRoute(t, registry.Route{Host: h, App: "kass", Account: fx.sqid, Kind: "instance", Status: "ready", Version: "v2", Channel: "stable"})
		sibling(t, fx, "kass", h, "stable")
	}
	box := status.CollectBox(nil, status.Probes{MachineID: "box1"}, time.Now())
	box.Metrics = &status.BoxMetrics{Rollout: &status.RolloutReport{Hosts: map[string]status.HostRollout{
		heldHost: {Account: fx.sqid, App: "kass", Installed: "v2", Serving: "v1", Good: "v1", Awake: true, HeldBy: "v2", Reason: status.ReasonHealth,
			HeldEpoch: heldEpoch, HeldBook: heldBook, RetryV: status.HostRetryV},
		down: {Account: fx.sqid, App: "kass", Installed: "v2", Good: "v1", Attempt: status.AttemptDown, AttemptBuild: "v2",
			HeldBy: "v2", Reason: status.ReasonExit, HeldEpoch: heldEpoch, HeldBook: heldBook, RetryV: status.HostRetryV},
	}}}
	if err := status.WriteBox(context.Background(), fx.rel, box); err != nil {
		t.Fatal(err)
	}
	c := signInPaul(t, fx)
	_, _, held := get(t, c, fx.u("/apps/kass/instances/"+heldHost))
	if want := fmt.Sprintf(swapCopy.HoldText, "v2", rolloutwords.Reason(status.ReasonHealth), "v1"); !strings.Contains(held, want) {
		t.Errorf("held page lacks %q", want)
	}
	_, _, body := get(t, c, fx.u("/apps/kass/instances/"+down))
	want := "Build v2 failed in hold mode on this box, and nothing is serving this instance. Roll back with carlos rollback, or retry it."
	if !strings.Contains(body, want) {
		t.Errorf("down page lacks %q", want)
	}
	if strings.Contains(body, "stays on") {
		t.Error("the down page says the instance stays on a build")
	}
	if !strings.Contains(body, `/instances/`+down+`/retry"`) {
		t.Error("the down page lost its Retry")
	}
}