/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 * All rights reserved.
 *
 * Licensed under the Oculus SDK License Agreement (the "License");
 * you may not use the Oculus SDK except in compliance with the License,
 * which is provided at the time of installation or download, or which
 * otherwise accompanies this software in either electronic or hard copy form.
 *
 * You may obtain a copy of the License at
 *
 * https://developer.oculus.com/licenses/oculussdk/
 *
 * Unless required by applicable law or agreed to in writing, the Oculus SDK
 * 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.
 */

using UnityEditor;

[InitializeOnLoad]
internal static class OVRProjectSetupPassthrough
{
    private const OVRProjectSetup.TaskGroup Group = OVRProjectSetup.TaskGroup.Features;

    static OVRProjectSetupPassthrough()
    {
        OVRProjectSetup.AddTask(
            level: OVRProjectSetup.TaskLevel.Required,
            group: Group,
            isDone: buildTargetGroup => OVRProjectSetupUtils.FindComponentInScene<OVRPassthroughLayer>() == null ||
                                        OVRProjectConfig.CachedProjectConfig.insightPassthroughSupport !=
                                        OVRProjectConfig.FeatureSupport.None,
            message: "When using Passthrough in your project it's required to enable its capability " +
                     "in the project config",
            fix: buildTargetGroup =>
            {
                var projectConfig = OVRProjectConfig.CachedProjectConfig;
                projectConfig.insightPassthroughSupport =
                    OVRProjectConfig.FeatureSupport.Supported;
                OVRProjectConfig.CommitProjectConfig(projectConfig);
            },
            fixMessage: "Enable Passthrough support in the project config");

        OVRProjectSetup.AddTask(
            level: OVRProjectSetup.TaskLevel.Required,
            group: Group,
            isDone: buildTargetGroup =>
            {
                if (OVRProjectSetupUtils.FindComponentInScene<OVRPassthroughLayer>() == null)
                {
                    return true;
                }

                var ovrManager = OVRProjectSetupUtils.FindComponentInScene<OVRManager>();
                return ovrManager == null || ovrManager.isInsightPassthroughEnabled;
            },
            message: $"When using Passthrough in your project it's required to enable it in {nameof(OVRManager)}",
            fix: buildTargetGroup =>
            {
                var ovrManager = OVRProjectSetupUtils.FindComponentInScene<OVRManager>();
                ovrManager.isInsightPassthroughEnabled = true;
                EditorUtility.SetDirty(ovrManager.gameObject);
            },
            fixMessage: $"Enable Passthrough in the {nameof(OVRManager)}");

        OVRProjectSetup.AddTask(
            level: OVRProjectSetup.TaskLevel.Required,
            group: Group,
            isDone: buildTargetGroup => OVRProjectSetupCompatibilityTasks.IsTargetingARM64,
            conditionalValidity: buildTargetGroup => OVRProjectConfig.CachedProjectConfig.insightPassthroughSupport !=
                                                     OVRProjectConfig.FeatureSupport.None,
            message: "When enabling the Passthrough capability in your project it's required to use ARM64 as " +
                     "the target architecture",
            fix: OVRProjectSetupCompatibilityTasks.SetARM64Target,
            fixMessage: "PlayerSettings.Android.targetArchitectures = AndroidArchitecture.ARM64"
        );

        OVRProjectSetup.AddTask(
            level: OVRProjectSetup.TaskLevel.Required,
            group: Group,
            isDone: _ =>
            {
                var ovrCameraRig = OVRProjectSetupUtils.FindComponentInScene<OVRCameraRig>();
                return ovrCameraRig != null &&
                       OVRPassthroughHelper.HasCentralCamera(ovrCameraRig) &&
                       OVRPassthroughHelper.IsBackgroundClear(ovrCameraRig);
            },
            conditionalValidity: _ =>
            {
                var ovrCameraRig = OVRProjectSetupUtils.FindComponentInScene<OVRCameraRig>();
                return ovrCameraRig != null &&
                       OVRPassthroughHelper.HasCentralCamera(ovrCameraRig) &&
                       OVRPassthroughHelper.IsAnyPassthroughLayerUnderlay();
            },
            message: "When using Passthrough as an underlay it's required set the camera background to transparent",
            fix: _ =>
            {
                var ovrCameraRig = OVRProjectSetupUtils.FindComponentInScene<OVRCameraRig>();
                if (ovrCameraRig != null && OVRPassthroughHelper.HasCentralCamera(ovrCameraRig))
                {
                    OVRPassthroughHelper.ClearBackground(ovrCameraRig);
                }
            },
            fixMessage: "Clear background of OVRCameraRig"
        );
    }
}