package router

import (
	"fmt"

	"github.com/go-chi/chi"

	"github.com/porter-dev/porter/api/server/handlers/job"
	"github.com/porter-dev/porter/api/server/handlers/namespace"
	"github.com/porter-dev/porter/api/server/shared"
	"github.com/porter-dev/porter/api/server/shared/config"
	"github.com/porter-dev/porter/api/types"
)

func NewNamespaceScopedRegisterer(children ...*Registerer) *Registerer {
	return &Registerer{
		GetRoutes: GetNamespaceScopedRoutes,
		Children:  children,
	}
}

func GetNamespaceScopedRoutes(
	r chi.Router,
	config *config.Config,
	basePath *types.Path,
	factory shared.APIEndpointFactory,
	children ...*Registerer,
) []*Route {
	routes, projPath := getNamespaceRoutes(r, config, basePath, factory)

	if len(children) > 0 {
		r.Route(projPath.RelativePath, func(r chi.Router) {
			for _, child := range children {
				childRoutes := child.GetRoutes(r, config, basePath, factory, child.Children...)

				routes = append(routes, childRoutes...)
			}
		})
	}

	return routes
}

func getNamespaceRoutes(
	r chi.Router,
	config *config.Config,
	basePath *types.Path,
	factory shared.APIEndpointFactory,
) ([]*Route, *types.Path) {
	relPath := "/namespaces/{namespace}"

	newPath := &types.Path{
		Parent:       basePath,
		RelativePath: relPath,
	}

	routes := make([]*Route, 0)

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap/list -> namespace.NewListConfigMapsHandler
	listConfigMapsEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbGet,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap/list",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	listConfigMapsHandler := namespace.NewListConfigMapsHandler(
		config,
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: listConfigMapsEndpoint,
		Handler:  listConfigMapsHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap -> namespace.NewGetConfigMapHandler
	getConfigMapEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbGet,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	getConfigMapHandler := namespace.NewGetConfigMapHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: getConfigMapEndpoint,
		Handler:  getConfigMapHandler,
		Router:   r,
	})

	// POST /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap/create -> namespace.NewCreateConfigMapHandler
	createConfigMapEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbCreate,
			Method: types.HTTPVerbPost,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap/create",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	createConfigMapHandler := namespace.NewCreateConfigMapHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: createConfigMapEndpoint,
		Handler:  createConfigMapHandler,
		Router:   r,
	})

	// POST /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap/update -> namespace.NewUpdateConfigMapHandler
	updateConfigMapEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbUpdate,
			Method: types.HTTPVerbPost,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap/update",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	updateConfigMapHandler := namespace.NewUpdateConfigMapHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: updateConfigMapEndpoint,
		Handler:  updateConfigMapHandler,
		Router:   r,
	})

	// POST /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap/rename -> namespace.NewRenameConfigMapHandler
	renameConfigMapEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbUpdate,
			Method: types.HTTPVerbPost,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap/rename",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	renameConfigMapHandler := namespace.NewRenameConfigMapHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: renameConfigMapEndpoint,
		Handler:  renameConfigMapHandler,
		Router:   r,
	})

	// DELETE /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/configmap/delete -> namespace.NewDeleteConfigMapHandler
	deleteConfigMapEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbDelete,
			Method: types.HTTPVerbDelete,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/configmap/delete",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	deleteConfigMapHandler := namespace.NewDeleteConfigMapHandler(
		config,
		factory.GetDecoderValidator(),
	)

	routes = append(routes, &Route{
		Endpoint: deleteConfigMapEndpoint,
		Handler:  deleteConfigMapHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/releases -> namespace.NewListReleasesHandler
	listReleasesEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbGet,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/releases",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	listReleasesHandler := namespace.NewListReleasesHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: listReleasesEndpoint,
		Handler:  listReleasesHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/pod/{name}/logs -> namespace.NewStreamPodLogsHandler
	streamPodLogsEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbGet,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/pod/{%s}/logs",
					relPath,
					types.URLParamPodName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
			IsWebsocket: true,
		},
	)

	streamPodLogsHandler := namespace.NewStreamPodLogsHandler(
		config,
		factory.GetDecoderValidator(),
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: streamPodLogsEndpoint,
		Handler:  streamPodLogsHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/jobs/{name}/pods -> jobs.NewGetPodsHandler
	getJobPodsEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbList,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/jobs/{%s}/pods",
					relPath,
					types.URLParamJobName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	getJobPodsHandler := job.NewGetPodsHandler(
		config,
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: getJobPodsEndpoint,
		Handler:  getJobPodsHandler,
		Router:   r,
	})

	// DELETE /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/jobs/{name} -> jobs.NewDeleteHandler
	deleteJobEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbDelete,
			Method: types.HTTPVerbDelete,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/jobs/{%s}",
					relPath,
					types.URLParamJobName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	deleteJobHandler := job.NewDeleteHandler(
		config,
	)

	routes = append(routes, &Route{
		Endpoint: deleteJobEndpoint,
		Handler:  deleteJobHandler,
		Router:   r,
	})

	// POST /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/jobs/{name}/stop -> jobs.NewStopHandler
	stopJobEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbUpdate,
			Method: types.HTTPVerbPost,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/jobs/{%s}/stop",
					relPath,
					types.URLParamJobName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	stopJobHandler := job.NewStopHandler(
		config,
	)

	routes = append(routes, &Route{
		Endpoint: stopJobEndpoint,
		Handler:  stopJobHandler,
		Router:   r,
	})

	// DELETE /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/pods/{name} -> namespace.NewDeletePodHandler
	deletePodEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbDelete,
			Method: types.HTTPVerbDelete,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/pods/{%s}",
					relPath,
					types.URLParamPodName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	deletePodHandler := namespace.NewDeletePodHandler(
		config,
	)

	routes = append(routes, &Route{
		Endpoint: deletePodEndpoint,
		Handler:  deletePodHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/pods/{name}/events -> namespace.NewGetPodEventsHandler
	getPodEventsEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbList,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent: basePath,
				RelativePath: fmt.Sprintf(
					"%s/pods/{%s}/events",
					relPath,
					types.URLParamPodName,
				),
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	getPodEventsHandler := namespace.NewGetPodEventsHandler(
		config,
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: getPodEventsEndpoint,
		Handler:  getPodEventsHandler,
		Router:   r,
	})

	// GET /api/projects/{project_id}/clusters/{cluster_id}/namespaces/{namespace}/ingresses/{name} ->
	// release.NewGetJobsHandler
	getIngressEndpoint := factory.NewAPIEndpoint(
		&types.APIRequestMetadata{
			Verb:   types.APIVerbGet,
			Method: types.HTTPVerbGet,
			Path: &types.Path{
				Parent:       basePath,
				RelativePath: relPath + "/ingresses/{name}",
			},
			Scopes: []types.PermissionScope{
				types.UserScope,
				types.ProjectScope,
				types.ClusterScope,
				types.NamespaceScope,
			},
		},
	)

	getIngressHandler := namespace.NewGetIngressHandler(
		config,
		factory.GetResultWriter(),
	)

	routes = append(routes, &Route{
		Endpoint: getIngressEndpoint,
		Handler:  getIngressHandler,
		Router:   r,
	})

	return routes, newPath
}