feat: /status page

schema.graphql

@@ -38,6 +38,28 @@ type Dashboard {
 """Date serialized as the Unix timestamp."""
 scalar Date
 
+type History implements QuestionShape {
+  description: String!
+
+  """History items are identified by their integer ids"""
+  id: ID!
+  options: [ProbabilityOption!]!
+  platform: Platform!
+  qualityIndicators: QualityIndicators!
+
+  """Unique string which identifies the question"""
+  questionId: ID!
+
+  """Timestamp at which metaforecast fetched the question"""
+  timestamp: Date!
+  title: String!
+
+  """
+  Non-unique, a very small number of platforms have a page for more than one prediction
+  """
+  url: String!
+}
+
 type Mutation {
   """
   Create a new dashboard; if the dashboard with given ids already exists then it will be returned instead.
@@ -63,6 +85,7 @@ type Platform {
   Platform name for displaying on frontend etc., e.g. "X-risk estimates"
   """
   label: String!
+  lastUpdated: Date
 }
 
 type ProbabilityOption {
@@ -93,6 +116,7 @@ type Query {
 
   """Get a list of questions that are currently on the frontpage"""
   frontpage: [Question!]!
+  platforms: [Platform!]!
 
   """Look up a single question by its id"""
   question(id: ID!): Question!
@@ -114,8 +138,9 @@ type QueryQuestionsConnectionEdge {
   node: Question!
 }
 
-type Question {
+type Question implements QuestionShape {
   description: String!
+  history: [History!]!
 
   """Unique string which identifies the question"""
   id: ID!
@@ -134,6 +159,22 @@ type Question {
   visualization: String
 }
 
+interface QuestionShape {
+  description: String!
+  options: [ProbabilityOption!]!
+  platform: Platform!
+  qualityIndicators: QualityIndicators!
+
+  """Timestamp at which metaforecast fetched the question"""
+  timestamp: Date!
+  title: String!
+
+  """
+  Non-unique, a very small number of platforms have a page for more than one prediction
+  """
+  url: String!
+}
+
 input SearchInput {
   """List of platform ids to filter by"""
   forecastingPlatforms: [String!]

src/graphql/schema/platforms.ts

@@ -0,0 +1,55 @@
+import { prisma } from "../../backend/database/prisma";
+import { platforms } from "../../backend/platforms";
+import { builder } from "../builder";
+
+export const PlatformObj = builder.objectRef<string>("Platform").implement({
+  description: "Forecasting platform supported by Metaforecast",
+  fields: (t) => ({
+    id: t.id({
+      description: 'Short unique platform name, e.g. "xrisk"',
+      resolve: (x) => x,
+    }),
+    label: t.string({
+      description:
+        'Platform name for displaying on frontend etc., e.g. "X-risk estimates"',
+      resolve: (platformName) => {
+        if (platformName === "metaforecast") {
+          return "Metaforecast";
+        }
+        if (platformName === "guesstimate") {
+          return "Guesstimate";
+        }
+        // kinda slow and repetitive, TODO - store a map {name => platform} somewhere and `getPlatform` util function?
+        const platform = platforms.find((p) => p.name === platformName);
+        if (!platform) {
+          throw new Error(`Unknown platform ${platformName}`);
+        }
+        return platform.label;
+      },
+    }),
+    lastUpdated: t.field({
+      type: "Date",
+      nullable: true,
+      resolve: async (platformName) => {
+        const res = await prisma.question.aggregate({
+          where: {
+            platform: platformName,
+          },
+          _max: {
+            timestamp: true,
+          },
+        });
+        return res._max.timestamp;
+      },
+    }),
+  }),
+});
+
+builder.queryField("platforms", (t) =>
+  t.field({
+    type: [PlatformObj],
+    resolve: async (parent, args) => {
+      return platforms.map((platform) => platform.name);
+    },
+  })
+);

src/graphql/schema/questions.ts

@@ -1,36 +1,9 @@
 import { History, Question } from "@prisma/client";
 
 import { prisma } from "../../backend/database/prisma";
-import { platforms, QualityIndicators } from "../../backend/platforms";
+import { QualityIndicators } from "../../backend/platforms";
 import { builder } from "../builder";
-
+import { PlatformObj } from "./platforms";
-const PlatformObj = builder.objectRef<string>("Platform").implement({
-  description: "Forecasting platform supported by Metaforecast",
-  fields: (t) => ({
-    id: t.id({
-      description: 'Short unique platform name, e.g. "xrisk"',
-      resolve: (x) => x,
-    }),
-    label: t.string({
-      description:
-        'Platform name for displaying on frontend etc., e.g. "X-risk estimates"',
-      resolve: (platformName) => {
-        if (platformName === "metaforecast") {
-          return "Metaforecast";
-        }
-        if (platformName === "guesstimate") {
-          return "Guesstimate";
-        }
-        // kinda slow and repetitive, TODO - store a map {name => platform} somewhere and `getPlatform` util function?
-        const platform = platforms.find((p) => p.name === platformName);
-        if (!platform) {
-          throw new Error(`Unknown platform ${platformName}`);
-        }
-        return platform.label;
-      },
-    }),
-  }),
-});
 
 export const QualityIndicatorsObj = builder
   .objectRef<QualityIndicators>("QualityIndicators")

src/graphql/types.generated.ts

@@ -43,6 +43,23 @@ export type Dashboard = {
   title: Scalars['String'];
 };
 
+export type History = QuestionShape & {
+  __typename?: 'History';
+  description: Scalars['String'];
+  /** History items are identified by their integer ids */
+  id: Scalars['ID'];
+  options: Array<ProbabilityOption>;
+  platform: Platform;
+  qualityIndicators: QualityIndicators;
+  /** Unique string which identifies the question */
+  questionId: Scalars['ID'];
+  /** Timestamp at which metaforecast fetched the question */
+  timestamp: Scalars['Date'];
+  title: Scalars['String'];
+  /** Non-unique, a very small number of platforms have a page for more than one prediction */
+  url: Scalars['String'];
+};
+
 export type Mutation = {
   __typename?: 'Mutation';
   /** Create a new dashboard; if the dashboard with given ids already exists then it will be returned instead. */
@@ -69,6 +86,7 @@ export type Platform = {
   id: Scalars['ID'];
   /** Platform name for displaying on frontend etc., e.g. "X-risk estimates" */
   label: Scalars['String'];
+  lastUpdated?: Maybe<Scalars['Date']>;
 };
 
 export type ProbabilityOption = {
@@ -99,6 +117,7 @@ export type Query = {
   dashboard: Dashboard;
   /** Get a list of questions that are currently on the frontpage */
   frontpage: Array<Question>;
+  platforms: Array<Platform>;
   /** Look up a single question by its id */
   question: Question;
   questions: QueryQuestionsConnection;
@@ -141,9 +160,10 @@ export type QueryQuestionsConnectionEdge = {
   node: Question;
 };
 
-export type Question = {
+export type Question = QuestionShape & {
   __typename?: 'Question';
   description: Scalars['String'];
+  history: Array<History>;
   /** Unique string which identifies the question */
   id: Scalars['ID'];
   options: Array<ProbabilityOption>;
@@ -157,6 +177,18 @@ export type Question = {
   visualization?: Maybe<Scalars['String']>;
 };
 
+export type QuestionShape = {
+  description: Scalars['String'];
+  options: Array<ProbabilityOption>;
+  platform: Platform;
+  qualityIndicators: QualityIndicators;
+  /** Timestamp at which metaforecast fetched the question */
+  timestamp: Scalars['Date'];
+  title: Scalars['String'];
+  /** Non-unique, a very small number of platforms have a page for more than one prediction */
+  url: Scalars['String'];
+};
+
 export type SearchInput = {
   /** List of platform ids to filter by */
   forecastingPlatforms?: InputMaybe<Array<Scalars['String']>>;

src/pages/status.tsx

@@ -0,0 +1 @@
+export { default } from "../web/status/pages/StatusPage";

src/web/status/pages/StatusPage.tsx

@@ -0,0 +1,49 @@
+import { NextPage } from "next";
+
+import { Query } from "../../common/Query";
+import { Layout } from "../../display/Layout";
+import { PlatformsStatusDocument } from "../queries.generated";
+
+const StatusPage: NextPage = () => {
+  return (
+    <Layout page="status">
+      <Query document={PlatformsStatusDocument}>
+        {({ data }) => (
+          <table className="table-auto border-collapse border border-gray-200 bg-white mx-auto mb-10">
+            <thead>
+              <tr className="bg-gray-100">
+                <th className="border border-gray-200 p-4">Platform</th>
+                <th className="border border-gray-200 p-4">Last updated</th>
+              </tr>
+            </thead>
+            <tbody>
+              {data.result.map((platform) => {
+                const ts = platform.lastUpdated
+                  ? new Date(platform.lastUpdated * 1000)
+                  : null;
+                const isStale =
+                  !ts || new Date().getTime() - ts.getTime() < 2 * 86400 * 1000;
+                return (
+                  <tr key={platform.id}>
+                    <td
+                      className={`border border-gray-200 p-4 ${
+                        isStale ? "bg-red-300" : ""
+                      }`}
+                    >
+                      {platform.label}
+                    </td>
+                    <td className="border border-gray-200 p-4">
+                      <div className="text-sm">{ts ? String(ts) : null}</div>
+                    </td>
+                  </tr>
+                );
+              })}
+            </tbody>
+          </table>
+        )}
+      </Query>
+    </Layout>
+  );
+};
+
+export default StatusPage;

src/web/status/queries.generated.tsx

@@ -0,0 +1,10 @@
+import * as Types from '../../graphql/types.generated';
+
+import { TypedDocumentNode as DocumentNode } from '@graphql-typed-document-node/core';
+export type PlatformsStatusQueryVariables = Types.Exact<{ [key: string]: never; }>;
+
+
+export type PlatformsStatusQuery = { __typename?: 'Query', result: Array<{ __typename?: 'Platform', id: string, label: string, lastUpdated?: number | null }> };
+
+
+export const PlatformsStatusDocument = {"kind":"Document","definitions":[{"kind":"OperationDefinition","operation":"query","name":{"kind":"Name","value":"PlatformsStatus"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","alias":{"kind":"Name","value":"result"},"name":{"kind":"Name","value":"platforms"},"selectionSet":{"kind":"SelectionSet","selections":[{"kind":"Field","name":{"kind":"Name","value":"id"}},{"kind":"Field","name":{"kind":"Name","value":"label"}},{"kind":"Field","name":{"kind":"Name","value":"lastUpdated"}}]}}]}}]} as unknown as DocumentNode<PlatformsStatusQuery, PlatformsStatusQueryVariables>;

src/web/status/queries.graphql

@@ -0,0 +1,7 @@
+query PlatformsStatus {
+  result: platforms {
+    id
+    label
+    lastUpdated
+  }
+}