// Copyright © 2023 Cisco Systems, Inc. and its affiliates.
// All rights reserved.
//
// Licensed under the Mozilla Public 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
//
//	https://mozilla.org/MPL/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.
//
// SPDX-License-Identifier: MPL-2.0
package provider

// RESOURCE NORMAL
import (
	"context"
	"strconv"

	"log"

	merakigosdk "github.com/meraki/dashboard-api-go/v5/sdk"

	"github.com/hashicorp/terraform-plugin-framework/path"
	"github.com/hashicorp/terraform-plugin-framework/resource"
	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
	"github.com/hashicorp/terraform-plugin-framework/resource/schema/listplanmodifier"
	"github.com/hashicorp/terraform-plugin-framework/resource/schema/objectplanmodifier"
	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
	"github.com/hashicorp/terraform-plugin-framework/types"
	"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
)

var (
	_ resource.Resource              = &DevicesSensorRelationshipsResource{}
	_ resource.ResourceWithConfigure = &DevicesSensorRelationshipsResource{}
)

func NewDevicesSensorRelationshipsResource() resource.Resource {
	return &DevicesSensorRelationshipsResource{}
}

type DevicesSensorRelationshipsResource struct {
	client *merakigosdk.Client
}

func (r *DevicesSensorRelationshipsResource) Configure(ctx context.Context, req resource.ConfigureRequest, resp *resource.ConfigureResponse) {
	if req.ProviderData == nil {
		return
	}
	client := req.ProviderData.(MerakiProviderData).Client
	r.client = client
}

// Metadata returns the data source type name.
func (r *DevicesSensorRelationshipsResource) Metadata(_ context.Context, req resource.MetadataRequest, resp *resource.MetadataResponse) {
	resp.TypeName = req.ProviderTypeName + "_devices_sensor_relationships"
}

func (r *DevicesSensorRelationshipsResource) Schema(_ context.Context, _ resource.SchemaRequest, resp *resource.SchemaResponse) {
	resp.Schema = schema.Schema{
		Attributes: map[string]schema.Attribute{
			"livestream": schema.SingleNestedAttribute{
				MarkdownDescription: `A role defined between an MT sensor and an MV camera that adds the camera's livestream to the sensor's details page. Snapshots from the camera will also appear in alert notifications that the sensor triggers.`,
				Optional:            true,
				PlanModifiers: []planmodifier.Object{
					objectplanmodifier.UseStateForUnknown(),
				},
				Attributes: map[string]schema.Attribute{

					"related_devices": schema.ListNestedAttribute{
						MarkdownDescription: `An array of the related devices for the role`,
						Optional:            true,
						PlanModifiers: []planmodifier.List{
							listplanmodifier.UseStateForUnknown(),
						},
						NestedObject: schema.NestedAttributeObject{
							Attributes: map[string]schema.Attribute{

								"product_type": schema.StringAttribute{
									MarkdownDescription: `The product type of the related device
                                              Allowed values: [camera,sensor]`,
									Computed: true,
								},
								"serial": schema.StringAttribute{
									MarkdownDescription: `The serial of the related device`,
									Optional:            true,
									PlanModifiers: []planmodifier.String{
										stringplanmodifier.UseStateForUnknown(),
									},
								},
							},
						},
					},
				},
			},
			"serial": schema.StringAttribute{
				MarkdownDescription: `serial path parameter.`,
				Required:            true,
			},
		},
	}
}

func (r *DevicesSensorRelationshipsResource) Create(ctx context.Context, req resource.CreateRequest, resp *resource.CreateResponse) {
	// Retrieve values from plan
	var data DevicesSensorRelationshipsRs

	var item types.Object
	resp.Diagnostics.Append(req.Plan.Get(ctx, &item)...)
	if resp.Diagnostics.HasError() {
		return
	}

	resp.Diagnostics.Append(item.As(ctx, &data, basetypes.ObjectAsOptions{
		UnhandledNullAsEmpty:    true,
		UnhandledUnknownAsEmpty: true,
	})...)

	if resp.Diagnostics.HasError() {
		return
	}
	// Has Paths
	vvSerial := data.Serial.ValueString()
	//Has Item and not has items

	// UPDATE NO CREATE
	dataRequest := data.toSdkApiRequestUpdate(ctx)
	response, restyResp2, err := r.client.Sensor.UpdateDeviceSensorRelationships(vvSerial, dataRequest)
	//Update
	if err != nil || restyResp2 == nil || response == nil {
		if restyResp2 != nil {
			resp.Diagnostics.AddError(
				"Failure when executing UpdateDeviceSensorRelationships",
				"Status: "+strconv.Itoa(restyResp2.StatusCode())+"\n"+restyResp2.String(),
			)
			return
		}
		resp.Diagnostics.AddError(
			"Failure when executing UpdateDeviceSensorRelationships",
			err.Error(),
		)
		return
	}

	// Assign data
	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)

}

func (r *DevicesSensorRelationshipsResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {
	var data DevicesSensorRelationshipsRs

	diags := req.State.Get(ctx, &data)
	if resp.Diagnostics.Append(diags...); resp.Diagnostics.HasError() {
		return
	}

	//Has Paths
	// Has Item2

	vvSerial := data.Serial.ValueString()
	responseGet, restyRespGet, err := r.client.Sensor.GetDeviceSensorRelationships(vvSerial)
	if err != nil || restyRespGet == nil {
		if restyRespGet != nil {
			if restyRespGet.StatusCode() == 404 {
				resp.Diagnostics.AddWarning(
					"Resource not found",
					"Deleting resource",
				)
				resp.State.RemoveResource(ctx)
				return
			}
			resp.Diagnostics.AddError(
				"Failure when executing GetDeviceSensorRelationships",
				restyRespGet.String(),
			)
			return
		}
		resp.Diagnostics.AddError(
			"Failure when executing GetDeviceSensorRelationships",
			err.Error(),
		)
		return
	}
	//entro aqui 2
	data = ResponseSensorGetDeviceSensorRelationshipsItemToBodyRs(data, responseGet, true)
	resp.Diagnostics.Append(resp.State.Set(ctx, &data)...)
}
func (r *DevicesSensorRelationshipsResource) ImportState(ctx context.Context, req resource.ImportStateRequest, resp *resource.ImportStateResponse) {
	resp.Diagnostics.Append(resp.State.SetAttribute(ctx, path.Root("serial"), req.ID)...)
}

func (r *DevicesSensorRelationshipsResource) Update(ctx context.Context, req resource.UpdateRequest, resp *resource.UpdateResponse) {
	var plan DevicesSensorRelationshipsRs
	merge(ctx, req, resp, &plan)

	if resp.Diagnostics.HasError() {
		return
	}
	//Path Params
	vvSerial := plan.Serial.ValueString()
	dataRequest := plan.toSdkApiRequestUpdate(ctx)
	response, restyResp2, err := r.client.Sensor.UpdateDeviceSensorRelationships(vvSerial, dataRequest)
	if err != nil || restyResp2 == nil || response == nil {
		if restyResp2 != nil {
			resp.Diagnostics.AddError(
				"Failure when executing UpdateDeviceSensorRelationships",
				"Status: "+strconv.Itoa(restyResp2.StatusCode())+"\n"+restyResp2.String(),
			)
			return
		}
		resp.Diagnostics.AddError(
			"Failure when executing UpdateDeviceSensorRelationships",
			err.Error(),
		)
		return
	}
	resp.Diagnostics.Append(resp.State.Set(ctx, &plan)...)
}

func (r *DevicesSensorRelationshipsResource) Delete(ctx context.Context, req resource.DeleteRequest, resp *resource.DeleteResponse) {
	//missing delete
	resp.Diagnostics.AddWarning("Error deleting DevicesSensorRelationships", "This resource has no delete method in the meraki lab, the resource was deleted only in terraform.")
	resp.State.RemoveResource(ctx)
}

// TF Structs Schema
type DevicesSensorRelationshipsRs struct {
	Serial     types.String                                            `tfsdk:"serial"`
	Livestream *ResponseSensorGetDeviceSensorRelationshipsLivestreamRs `tfsdk:"livestream"`
}

type ResponseSensorGetDeviceSensorRelationshipsLivestreamRs struct {
	RelatedDevices *[]ResponseSensorGetDeviceSensorRelationshipsLivestreamRelatedDevicesRs `tfsdk:"related_devices"`
}

type ResponseSensorGetDeviceSensorRelationshipsLivestreamRelatedDevicesRs struct {
	ProductType types.String `tfsdk:"product_type"`
	Serial      types.String `tfsdk:"serial"`
}

// FromBody
func (r *DevicesSensorRelationshipsRs) toSdkApiRequestUpdate(ctx context.Context) *merakigosdk.RequestSensorUpdateDeviceSensorRelationships {
	var requestSensorUpdateDeviceSensorRelationshipsLivestream *merakigosdk.RequestSensorUpdateDeviceSensorRelationshipsLivestream

	if r.Livestream != nil {

		log.Printf("[DEBUG] #TODO []RequestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices")
		var requestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices []merakigosdk.RequestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices

		if r.Livestream.RelatedDevices != nil {
			for _, rItem1 := range *r.Livestream.RelatedDevices {
				serial := rItem1.Serial.ValueString()
				requestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices = append(requestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices, merakigosdk.RequestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices{
					Serial: serial,
				})
				//[debug] Is Array: True
			}
		}
		requestSensorUpdateDeviceSensorRelationshipsLivestream = &merakigosdk.RequestSensorUpdateDeviceSensorRelationshipsLivestream{
			RelatedDevices: func() *[]merakigosdk.RequestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices {
				if len(requestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices) > 0 {
					return &requestSensorUpdateDeviceSensorRelationshipsLivestreamRelatedDevices
				}
				return nil
			}(),
		}
		//[debug] Is Array: False
	}
	out := merakigosdk.RequestSensorUpdateDeviceSensorRelationships{
		Livestream: requestSensorUpdateDeviceSensorRelationshipsLivestream,
	}
	return &out
}

// From gosdk to TF Structs Schema
func ResponseSensorGetDeviceSensorRelationshipsItemToBodyRs(state DevicesSensorRelationshipsRs, response *merakigosdk.ResponseSensorGetDeviceSensorRelationships, is_read bool) DevicesSensorRelationshipsRs {
	itemState := DevicesSensorRelationshipsRs{
		Livestream: func() *ResponseSensorGetDeviceSensorRelationshipsLivestreamRs {
			if response.Livestream != nil {
				return &ResponseSensorGetDeviceSensorRelationshipsLivestreamRs{
					RelatedDevices: func() *[]ResponseSensorGetDeviceSensorRelationshipsLivestreamRelatedDevicesRs {
						if response.Livestream.RelatedDevices != nil {
							result := make([]ResponseSensorGetDeviceSensorRelationshipsLivestreamRelatedDevicesRs, len(*response.Livestream.RelatedDevices))
							for i, relatedDevices := range *response.Livestream.RelatedDevices {
								result[i] = ResponseSensorGetDeviceSensorRelationshipsLivestreamRelatedDevicesRs{
									ProductType: func() types.String {
										if relatedDevices.ProductType != "" {
											return types.StringValue(relatedDevices.ProductType)
										}
										return types.String{}
									}(),
									Serial: func() types.String {
										if relatedDevices.Serial != "" {
											return types.StringValue(relatedDevices.Serial)
										}
										return types.String{}
									}(),
								}
							}
							return &result
						}
						return nil
					}(),
				}
			}
			return nil
		}(),
	}
	if is_read {
		return mergeInterfacesOnlyPath(state, itemState).(DevicesSensorRelationshipsRs)
	}
	return mergeInterfaces(state, itemState, true).(DevicesSensorRelationshipsRs)
}
