package main

import (
	"context"
	"errors"
	"testing"
	"time"

	apierrors "k8s.io/apimachinery/pkg/api/errors"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
	"k8s.io/apimachinery/pkg/runtime"
	dynamicfake "k8s.io/client-go/dynamic/fake"
	k8stesting "k8s.io/client-go/testing"
)

func TestConsumedHistory(t *testing.T) {
	ctx := context.Background()
	now := time.Date(2026, 10, 2, 0, 0, 0, 0, time.UTC)
	first := "0123456789abcdef0123456789abcdef01234567"
	second := "89abcdef0123456789abcdef0123456789abcdef"
	refs := &mutableRefs{values: map[string]string{"refs/heads/main": first}}
	instance := testController(t, continuousDelivery(), refs, &now)
	for _, revision := range []string{first, second} {
		refs.values["refs/heads/main"] = revision
		for range 3 {
			instance.reconcileAll(ctx)
			now = now.Add(time.Minute)
		}
		setNamedWorkflowStatus(t, instance, workflowName("build", "11111111-2222-3333-4444-555555555555", "continuous", revision), "Failed", nil)
		instance.reconcileAll(ctx)
	}
	name := workflowName("build", "11111111-2222-3333-4444-555555555555", "continuous", first)
	if err := instance.client.Resource(workflowGVR).Namespace("delivery").Delete(ctx, name, metav1.DeleteOptions{}); err != nil {
		t.Fatal(err)
	}
	refs.values["refs/heads/main"] = first
	for range 4 {
		instance.reconcileAll(ctx)
		now = now.Add(time.Minute)
	}
	if count := countWorkflows(t, instance, "build"); count != 1 {
		t.Fatalf("previously consumed failed identity was submitted again: %d Workflows", count)
	}
}

func TestCaptureBeforeStatus(t *testing.T) {
	ctx := context.Background()
	now := time.Date(2026, 10, 2, 0, 0, 0, 0, time.UTC)
	revision := "0123456789abcdef0123456789abcdef01234567"
	instance := testController(t, pointDelivery(revision), &mutableRefs{values: map[string]string{"refs/heads/main": revision}}, &now)
	client := instance.client.(*dynamicfake.FakeDynamicClient)
	changed := false
	client.PrependReactor("update", "projectdeliveries", func(action k8stesting.Action) (bool, runtime.Object, error) {
		if changed || action.GetSubresource() != "status" {
			return false, nil, nil
		}
		changed = true
		raw, err := client.Tracker().Get(projectDeliveryGVR, "delivery", "point")
		if err != nil {
			t.Fatal(err)
		}
		object := raw.(*unstructured.Unstructured).DeepCopy()
		unstructured.RemoveNestedField(object.Object, "spec", "source", "point")
		if err := unstructured.SetNestedMap(object.Object, map[string]any{"ref": "refs/heads/main"}, "spec", "source", "continuous"); err != nil {
			t.Fatal(err)
		}
		if err := client.Tracker().Update(projectDeliveryGVR, object, "delivery"); err != nil {
			t.Fatal(err)
		}
		return true, nil, apierrors.NewConflict(projectDeliveryGVR.GroupResource(), "point", errors.New("synthetic source update"))
	})
	if err := instance.reconcileKey(ctx, "delivery", "point"); err != nil {
		t.Fatal(err)
	}
	points, _, err := unstructured.NestedSlice(getDelivery(t, instance, "point").Object, "status", "points")
	if err != nil {
		t.Fatal(err)
	}
	if len(points) != 1 {
		t.Fatalf("accepted Point execution disappeared after a source-mode conflict: %d records", len(points))
	}
}