{
	"ownerApp" : "Orchestrator",
	"name" : "user-group_deleted",
	"createBy" : "Marco Lettere",
	"description": "Handle workflow related to Portal event user-group_deleted",
	"version" : 1,
	"ownerEmail" : "m.lettere@gmail.com",
	"inputParameters" : ["user", "group"],
	"tasks" : [
		{
		"name": "INLINE_TASK",
		"taskReferenceName": "init",
		"type": "INLINE",
		"inputParameters": {
			"keycloak": "{{ keycloak }}/{{ keycloak_realm }}",
			"keycloak_admin" : "{{ keycloak_admin }}/{{ keycloak_realm }}",
			"group" : "${workflow.input.group}",
			"user" : "${workflow.input.user}", 
			"evaluatorType" : "javascript",
            "expression": "function e(v){ return (v == null || (v.trim && v.trim() === ''))}; if(e($.user) || e($.group)) throw('User and Group must not be empty'); function f(){var path = $.group.startsWith('%2F') ? $.group.split('%2F').slice(1) : [$.group]; return { 'tree' : Java.to(path, 'java.lang.String[]'), 'name' : path.slice(path.length-1)[0], search : encodeURIComponent(path.slice(path.length-1)[0])}} f()"
			}
		},
		{
			"name" : "pyrest",
			"taskReferenceName" : "authorize",
			"type" : "SIMPLE",
			"inputParameters" : {
				"url" : "${init.input.keycloak}/protocol/openid-connect/token",
				"method" : "POST",
				"headers" : {
					"Accept" : "application/json"
				},
				"body" : {
					"client_id" : "orchestrator", 
					"client_secret" : "{{ keycloak_auth }}",
					"grant_type" : "client_credentials"
				}
			}
		},
		{
			"name" : "pyrest",
			"taskReferenceName" : "lookup_user",
			"type" : "SIMPLE",
			"inputParameters" : {
				"url" : "${init.input.keycloak_admin}/users?username=${workflow.input.user}",
				"method" : "GET",
				"headers" : {
					"Authorization" : "Bearer ${authorize.output.body.access_token}",
					"Accept" : "application/json"
				}
			}
		},
		{
			"name": "INLINE_TASK",
			"taskReferenceName": "select_user",
			"inputParameters": {
				"foundusers": "${lookup_user.output.body}",
				"username": "${workflow.input.user}",
				"evaluatorType" : "javascript",
				"expression": "function f(){for(var i=0; i < $.foundusers.length;i++){if($.foundusers[i]['username'] == $.username) return $.foundusers[i]}} f()"
			},
			"type": "INLINE"
		},
		{
			"name": "check_user_existance",
			"taskReferenceName": "check_user_existance",
			"inputParameters": {
				"user": "${select_user.output.result}"
			},
			"type": "SWITCH",
			"evaluatorType" : "javascript",
			"expression": "($.user == null ? 'true' : 'false')",
			"decisionCases": {
				"true": [
					{
						"name" : "terminate",
						"taskReferenceName" : "terminate_when_no_user",
						"type" : "TERMINATE",
						"inputParameters" : {
							"terminationStatus" : "COMPLETED"
						}
					}
				]
			}
		},
		{
            "name" : "pyrest",
            "taskReferenceName" : "look_up_groups",
            "type" : "SIMPLE",
            "inputParameters" : {
                "url" : "${init.input.keycloak_admin}/groups?search=${init.output.result.search}",
                "headers" : {
                    "Authorization" : "Bearer ${authorize.output.body.access_token}",
                    "Accept" : "application/json"
                }
            }
        },
        {
        "name": "INLINE_TASK",
        "taskReferenceName": "extract_group",
        "type": "INLINE",
        "inputParameters": {
            "tree" : "${init.output.result.tree}",
            "groups" : "${look_up_groups.output.body}",
            "evaluatorType" : "javascript",
			"expression": "function selectByPath(groups, path, level) { for (var i=0; i < groups.length; i++) {if (groups[i].name === path[level]) {if (level === path.length - 1) return groups[i];return selectByPath(groups[i].subGroups, path, level+1)}} return null; } function f() { return { 'group' : selectByPath($.groups, $.tree, 0)}} f()"
            }
        },
        {
			"name" : "check_group_existance",
			"taskReferenceName" : "check_group_existance",
			"type" : "SWITCH",
			"inputParameters" :{
				"group" : "${extract_group.output.result.group}"
			},
			"evaluatorType" : "javascript",
			"expression": "(($.group != null) ? 'delete' : 'skip')",
			"decisionCases" : {
				"skip" : [
					{
						"name" : "terminate",
						"taskReferenceName" : "terminate_when_no_group",
						"type" : "TERMINATE",
						"inputParameters" : {
							"terminationStatus" : "COMPLETED"
						}
					}
				]
			}
		},
        {
            "name" : "pyrest",
            "taskReferenceName" : "delete_user_from_group",
            "type" : "SIMPLE",
            "inputParameters" : {
                "url" : "${init.input.keycloak_admin}/users/${select_user.output.result.id}/groups/${extract_group.output.result.group.id}",
                "method" : "DELETE",
                "headers" : {
                    "Authorization" : "Bearer ${authorize.output.body.access_token}"
                }
            }
        },
		{
			"name" : "pyrest",
			"taskReferenceName" : "lookup_client",
			"type" : "SIMPLE",
			"inputParameters" : {
				"url" : "${init.input.keycloak_admin}/clients",
				"params" : { "clientId" : "${workflow.input.group}"},
				"method" : "GET",
				"headers" : {
					"Authorization" : "Bearer ${authorize.output.body.access_token}",
					"Accept" : "application/json"
				}
			}
		},
		{
			"name" : "pyrest",
			"taskReferenceName" : "get_client_roles",
			"type" : "SIMPLE",
			"inputParameters" : {
				"url" : "${init.input.keycloak_admin}/clients/${lookup_client.output.body[0].id}/roles",
				"method" : "GET",
				"expect" : [200, 404],
				"headers" : {
					"Authorization" : "Bearer ${authorize.output.body.access_token}",
					"Accept" : "application/json"
				}
			}
		},
		{
			"name" : "check_role_existance",
			"taskReferenceName" : "check_role_existance",
			"type" : "SWITCH",
			"evaluatorType" : "value-param",
			"inputParameters" :{
				"previous_outcome" : "${get_client_roles.output.status}"
			},
			"expression" : "previous_outcome",
			"decisionCases" : {
				"200" : [
					{
						"name" : "pyrest",
						"taskReferenceName" : "remove_all_roles_from_user",
						"type" : "SIMPLE",
						"inputParameters" : {
							"url" : "${init.input.keycloak_admin}/users/${select_user.output.result.id}/role-mappings/clients/${lookup_client.output.body[0].id}",
							"expect" : 204,
							"method" : "DELETE",
							"body" : "${get_client_roles.body}",
							"headers" : {
								"Authorization" : "Bearer ${authorize.output.body.access_token}",
								"Content-Type" : "application/json"
							}
						}
					}
				]
			}
		}
	]
}