/*
Copyright 2025.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package controller

import (
	"context"
	"time"

	"k8s.io/apimachinery/pkg/runtime"
	ctrl "sigs.k8s.io/controller-runtime"
	"sigs.k8s.io/controller-runtime/pkg/client"
	logf "sigs.k8s.io/controller-runtime/pkg/log"
	"sigs.k8s.io/controller-runtime/pkg/reconcile"

	yahov1alpha1 "github.com/allanger/yaho/api/v1alpha1"
	"github.com/allanger/yaho/internal/downloader"
	k8serrors "k8s.io/apimachinery/pkg/api/errors"
)

// HelmReleaseReconciler reconciles a HelmRelease object
type HelmReleaseReconciler struct {
	client.Client
	Scheme *runtime.Scheme
}

// +kubebuilder:rbac:groups=yaho.badhouseplants.net,resources=helmreleases,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=yaho.badhouseplants.net,resources=helmreleases/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=yaho.badhouseplants.net,resources=helmreleases/finalizers,verbs=update

func (r *HelmReleaseReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
	log := logf.FromContext(ctx)
	log.Info("reconciliation is started")

	reconcilePeriod := 30 * time.Second
	reconcileResult := reconcile.Result{RequeueAfter: reconcilePeriod}
	helmReleaseCR := &yahov1alpha1.HelmRelease{}
	err := r.Get(ctx, req.NamespacedName, helmReleaseCR)
	if err != nil {
		if k8serrors.IsNotFound(err) {
			// Requested object not found, could have been deleted after reconcile request.
			// Owned objects are automatically garbage collected. For additional cleanup logic use finalizers.
			// Return and don't requeue
			return reconcileResult, nil
		}
		log.Error(err, "An unxexpected error has occurred during the reconciliation")
		// Error reading the object - requeue the request.
		return reconcileResult, err
	}

	// Update object status always when function exit abnormally or through a panic.
	defer func() {
		if err := r.Status().Update(ctx, helmReleaseCR); err != nil {
			log.Error(err, "Failed to update status")
		}
	}()

	// First setup all the controller logic
	// Pull the chart t a temporary directory
	// 	
	// TODO(user): your logic here
	path, err := downloader.PullChart(ctx, helmReleaseCR.Spec.Repository, helmReleaseCR.Spec.Chart, helmReleaseCR.Spec.Version, nil)
	if err != nil {
		log.Error(err, "An unexpected error has occurred while trying to fetch a chart")
		return reconcileResult, nil
	}
	log.Info("Pulled a chart", "path", path)
	//path, err := downloader.PullChart(repository, chart, version)
	//if err != nil { return ... }
	//err := helm.InstallOrUpdate(); if err != nil { return ...}
	
	return ctrl.Result{}, nil
}

// SetupWithManager sets up the controller with the Manager.
func (r *HelmReleaseReconciler) SetupWithManager(mgr ctrl.Manager) error {
	return ctrl.NewControllerManagedBy(mgr).
		For(&yahov1alpha1.HelmRelease{}).
		Named("helmrelease").
		Complete(r)
}