From d52ba8c6fd2a546b6b862e77c87ababfc20c94e9 Mon Sep 17 00:00:00 2001
From: Bouncey <staylor1012@gmail.com>
Date: Sun, 7 Oct 2018 08:52:41 +0100
Subject: [PATCH] fix(path-map): Refactor pathMigrationMap for new curriculum
 package

---
 tools/scripts/seed/__mocks__/curriculum.json  | 86 +++++++++++++++++++
 tools/scripts/seed/createPathMigrationMap.js  | 25 ++++++
 .../seed/createPathMigrationMap.test.js       | 32 +++++++
 3 files changed, 143 insertions(+)
 create mode 100644 tools/scripts/seed/__mocks__/curriculum.json
 create mode 100644 tools/scripts/seed/createPathMigrationMap.js
 create mode 100644 tools/scripts/seed/createPathMigrationMap.test.js

diff --git a/tools/scripts/seed/__mocks__/curriculum.json b/tools/scripts/seed/__mocks__/curriculum.json
new file mode 100644
index 0000000000..d958d35793
--- /dev/null
+++ b/tools/scripts/seed/__mocks__/curriculum.json
@@ -0,0 +1,86 @@
+{
+  "super-block-a": {
+    "blocks": {
+      "block-one": {
+        "meta": {},
+        "challenges": [
+          {
+            "title": "Challenge One",
+            "block": "Block One",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Two",
+            "block": "Block One",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Three",
+            "block": "Block One",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Four",
+            "block": "Block One",
+            "superBlock": "super-block-a"
+          }
+        ]
+      },
+      "block-two": {
+        "meta": {},
+        "challenges": [
+          {
+            "title": "Challenge Five",
+            "block": "Block Two",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Six",
+            "block": "Block Two",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Seven",
+            "block": "Block Two",
+            "superBlock": "super-block-a"
+          },
+          {
+            "title": "Challenge Eight",
+            "block": "Block Two",
+            "superBlock": "super-block-a"
+          }
+        ]
+      }
+    }
+  },
+  "super-block-b": {
+    "blocks": {
+      "block-one": {
+        "meta": {},
+        "challenges": [
+          {
+            "title": "Challenge Nine",
+            "block": "Block One",
+            "superBlock": "super-block-b",
+            "isPrivate": true
+          },
+          {
+            "title": "Challenge Ten",
+            "block": "Block One",
+            "superBlock": "super-block-b"
+          },
+          {
+            "title": "Challenge Eleven",
+            "block": "Block One",
+            "superBlock": "super-block-b"
+          },
+          {
+            "title": "Challenge Twelve",
+            "block": "Block One",
+            "superBlock": "super-block-b"
+          }
+        ]
+      }
+    }
+  }
+}
diff --git a/tools/scripts/seed/createPathMigrationMap.js b/tools/scripts/seed/createPathMigrationMap.js
new file mode 100644
index 0000000000..eed327892e
--- /dev/null
+++ b/tools/scripts/seed/createPathMigrationMap.js
@@ -0,0 +1,25 @@
+const { flatten } = require('lodash');
+
+const { dasherize } = require('../../../api-server/server/utils');
+
+function createPathMigrationMap(curriculum) {
+  return Object.keys(curriculum)
+    .map(key => curriculum[key].blocks)
+    .reduce((challenges, current) => {
+      const superChallenges = Object.keys(current).map(
+        key => current[key].challenges
+      );
+      return challenges.concat(flatten(superChallenges));
+    }, [])
+    .filter(({ isPrivate }) => !isPrivate)
+    .reduce((map, challenge) => {
+      const { title, block, superBlock } = challenge;
+      const dashedTitle = dasherize(title);
+      map[dashedTitle] = `/learn/${dasherize(superBlock)}/${dasherize(
+        block
+      )}/${dashedTitle}`;
+      return map;
+    }, {});
+}
+
+exports.createPathMigrationMap = createPathMigrationMap;
diff --git a/tools/scripts/seed/createPathMigrationMap.test.js b/tools/scripts/seed/createPathMigrationMap.test.js
new file mode 100644
index 0000000000..835731103b
--- /dev/null
+++ b/tools/scripts/seed/createPathMigrationMap.test.js
@@ -0,0 +1,32 @@
+/* global describe expect */
+const { isPlainObject } = require('lodash');
+
+const { createPathMigrationMap } = require('./createPathMigrationMap');
+const mockCurriculum = require('./__mocks__/curriculum.json');
+
+describe('createPathMigrationMap', () => {
+  const pathMap = createPathMigrationMap(mockCurriculum);
+
+  it('is a function', () => {
+    expect(typeof createPathMigrationMap).toEqual('function');
+  });
+
+  it('returns an object', () => {
+    expect(isPlainObject(pathMap)).toBe(true);
+  });
+
+  it('maps a challenge title to the correct uri slug', () => {
+    expect.assertions(3);
+    const slugOne = '/learn/super-block-b/block-one/challenge-ten';
+    const slugTwo = '/learn/super-block-a/block-two/challenge-five';
+    const slugThree = '/learn/super-block-a/block-one/challenge-three';
+
+    expect(pathMap['challenge-ten']).toEqual(slugOne);
+    expect(pathMap['challenge-five']).toEqual(slugTwo);
+    expect(pathMap['challenge-three']).toEqual(slugThree);
+  });
+
+  it('does not add uri migrations for private challenges', () => {
+    expect(pathMap['challenge-nine']).toBeUndefined();
+  });
+});