Initial TypeScript refactoring

17 files changed, 1105 insertions, 185 deletions

diff --git a/.eslintrc.js b/.eslintrc.js
index 955dc9f..eb5df15 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -6,9 +6,10 @@ module.exports = {
   extends: [
     'plugin:vue/vue3-essential',
     '@vue/airbnb',
+    '@vue/typescript',
   ],
   parserOptions: {
-    parser: 'babel-eslint',
+    parser: '@typescript-eslint/parser',
   },
   rules: {
     'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
diff --git a/jsconfig.json b/jsconfig.json
deleted file mode 100644
index 9a58b73..0000000
--- a/jsconfig.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "include": [
-    "./src/**/*"
-  ]
-}
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index fb3d339..22d210a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1116,12 +1116,40 @@
         "glob-to-regexp": "^0.3.0"
       }
     },
+    "@nodelib/fs.scandir": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.4.tgz",
+      "integrity": "sha512-33g3pMJk3bg5nXbL/+CY6I2eJDzZAni49PfJnL5fghPTggPvBd/pFNSgJsdAgWptuFu7qq/ERvOYFlhvsLTCKA==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.stat": "2.0.4",
+        "run-parallel": "^1.1.9"
+      },
+      "dependencies": {
+        "@nodelib/fs.stat": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.4.tgz",
+          "integrity": "sha512-IYlHJA0clt2+Vg7bccq+TzRdJvv19c2INqBSsoOLp1je7xjtr7J26+WXR72MCdvU9q1qTzIWDfhMf+DRvQJK4Q==",
+          "dev": true
+        }
+      }
+    },
     "@nodelib/fs.stat": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz",
       "integrity": "sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==",
       "dev": true
     },
+    "@nodelib/fs.walk": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.6.tgz",
+      "integrity": "sha512-8Broas6vTtW4GIXTAHDoE32hnN2M5ykgCpWGbuXHQ15vEMqr23pB76e/GZcYsZCHALv50ktd24qhEyKr6wBtow==",
+      "dev": true,
+      "requires": {
+        "@nodelib/fs.scandir": "2.1.4",
+        "fastq": "^1.6.0"
+      }
+    },
     "@soda/friendly-errors-webpack-plugin": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/@soda/friendly-errors-webpack-plugin/-/friendly-errors-webpack-plugin-1.8.0.tgz",
@@ -1311,6 +1339,13 @@
       "integrity": "sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==",
       "dev": true
     },
+    "@types/parse-json": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@types/parse-json/-/parse-json-4.0.0.tgz",
+      "integrity": "sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==",
+      "dev": true,
+      "optional": true
+    },
     "@types/q": {
       "version": "1.5.4",
       "resolved": "https://registry.npmjs.org/@types/q/-/q-1.5.4.tgz",
@@ -1403,6 +1438,12 @@
         "http-proxy-middleware": "^1.0.0"
       }
     },
+    "@types/webpack-env": {
+      "version": "1.16.0",
+      "resolved": "https://registry.npmjs.org/@types/webpack-env/-/webpack-env-1.16.0.tgz",
+      "integrity": "sha512-Fx+NpfOO0CpeYX2g9bkvX8O5qh9wrU1sOF4g8sft4Mu7z+qfe387YlyY8w8daDyDsKY5vUxM0yxkAYnbkRbZEw==",
+      "dev": true
+    },
     "@types/webpack-sources": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/@types/webpack-sources/-/webpack-sources-2.1.0.tgz",
@@ -1422,6 +1463,312 @@
         }
       }
     },
+    "@typescript-eslint/eslint-plugin": {
+      "version": "4.22.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.22.0.tgz",
+      "integrity": "sha512-U8SP9VOs275iDXaL08Ln1Fa/wLXfj5aTr/1c0t0j6CdbOnxh+TruXu1p4I0NAvdPBQgoPjHsgKn28mOi0FzfoA==",
+      "dev": true,
+      "requires": {
+        "@typescript-eslint/experimental-utils": "4.22.0",
+        "@typescript-eslint/scope-manager": "4.22.0",
+        "debug": "^4.1.1",
+        "functional-red-black-tree": "^1.0.1",
+        "lodash": "^4.17.15",
+        "regexpp": "^3.0.0",
+        "semver": "^7.3.2",
+        "tsutils": "^3.17.1"
+      },
+      "dependencies": {
+        "lru-cache": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
+          "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
+          "dev": true,
+          "requires": {
+            "yallist": "^4.0.0"
+          }
+        },
+        "regexpp": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/regexpp/-/regexpp-3.1.0.tgz",
+          "integrity": "sha512-ZOIzd8yVsQQA7j8GCSlPGXwg5PfmA1mrq0JP4nGhh54LaKN3xdai/vHUDu74pKwV8OxseMS65u2NImosQcSD0Q==",
+          "dev": true
+        },
+        "semver": {
+          "version": "7.3.5",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
+          "integrity": "sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==",
+          "dev": true,
+          "requires": {
+            "lru-cache": "^6.0.0"
+          }
+        },
+        "tsutils": {
+          "version": "3.21.0",
+          "resolved": "https://registry.npmjs.org/tsutils/-/tsutils-3.21.0.tgz",
+          "integrity": "sha512-mHKK3iUXL+3UF6xL5k0PEhKRUBKPBCv/+RkEOpjRWxxx27KKRBmmA60A9pgOUvMi8GKhRMPEmjBRPzs2W7O1OA==",
+          "dev": true,
+          "requires": {
+            "tslib": "^1.8.1"
+          }
+        },
+        "yallist": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
+          "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+          "dev": true
+        }
+      }
+    },
+    "@typescript-eslint/experimental-utils": {
+      "version": "4.22.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/experimental-utils/-/experimental-utils-4.22.0.tgz",
+      "integrity": "sha512-xJXHHl6TuAxB5AWiVrGhvbGL8/hbiCQ8FiWwObO3r0fnvBdrbWEDy1hlvGQOAWc6qsCWuWMKdVWlLAEMpxnddg==",
+      "dev": true,
+      "requires": {
+        "@types/json-schema": "^7.0.3",
+        "@typescript-eslint/scope-manager": "4.22.0",
+        "@typescript-eslint/types": "4.22.0",
+        "@typescript-eslint/typescript-estree": "4.22.0",
+        "eslint-scope": "^5.0.0",
+        "eslint-utils": "^2.0.0"
+      },
+      "dependencies": {
+        "eslint-scope": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.1.tgz",
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+          "dev": true,
+          "requires": {
+            "esrecurse": "^4.3.0",
+            "estraverse": "^4.1.1"
+          }
+        },
+        "eslint-utils": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/eslint-utils/-/eslint-utils-2.1.0.tgz",
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+          "dev": true,
+          "requires": {
+            "eslint-visitor-keys": "^1.1.0"
+          }
+        }
+      }
+    },
+    "@typescript-eslint/parser": {
+      "version": "4.22.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-4.22.0.tgz",
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+        "@typescript-eslint/types": "4.22.0",
+        "@typescript-eslint/typescript-estree": "4.22.0",
+        "debug": "^4.1.1"
+      }
+    },
+    "@typescript-eslint/scope-manager": {
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+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-4.22.0.tgz",
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+        "@typescript-eslint/visitor-keys": "4.22.0"
+      }
+    },
+    "@typescript-eslint/types": {
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+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-4.22.0.tgz",
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+      "dev": true
+    },
+    "@typescript-eslint/typescript-estree": {
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+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-4.22.0.tgz",
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+        "@typescript-eslint/visitor-keys": "4.22.0",
+        "debug": "^4.1.1",
+        "globby": "^11.0.1",
+        "is-glob": "^4.0.1",
+        "semver": "^7.3.2",
+        "tsutils": "^3.17.1"
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+      "dependencies": {
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+          "dev": true,
+          "requires": {
+            "tslib": "^1.8.1"
+          }
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+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
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+          "dev": true
+        }
+      }
+    },
+    "@typescript-eslint/visitor-keys": {
+      "version": "4.22.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-4.22.0.tgz",
+      "integrity": "sha512-nnMu4F+s4o0sll6cBSsTeVsT4cwxB7zECK3dFxzEjPBii9xLpq4yqqsy/FU5zMfan6G60DKZSCXAa3sHJZrcYw==",
+      "dev": true,
+      "requires": {
+        "@typescript-eslint/types": "4.22.0",
+        "eslint-visitor-keys": "^2.0.0"
+      },
+      "dependencies": {
+        "eslint-visitor-keys": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz",
+          "integrity": "sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==",
+          "dev": true
+        }
+      }
+    },
     "@vue/babel-helper-vue-jsx-merge-props": {
       "version": "1.2.1",
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@@ -1640,6 +1987,25 @@
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-        "color-name": {
-          "version": "1.1.4",
-          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-          "dev": true,
-          "optional": true
-        },
-        "has-flag": {
-          "version": "4.0.0",
-          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-          "dev": true,
-          "optional": true
-        },
-        "loader-utils": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.0.tgz",
-          "integrity": "sha512-rP4F0h2RaWSvPEkD7BLDFQnvSf+nK+wr3ESUjNTyAGobqrijmW92zc+SO6d4p4B1wh7+B/Jg1mkQe5NYUEHtHQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "big.js": "^5.2.2",
-            "emojis-list": "^3.0.0",
-            "json5": "^2.1.2"
-          }
-        },
-        "supports-color": {
-          "version": "7.2.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
-          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "has-flag": "^4.0.0"
-          }
-        }
-      }
-    },
     "vue-router": {
       "version": "4.0.5",
       "resolved": "https://registry.npmjs.org/vue-router/-/vue-router-4.0.5.tgz",
@@ -12594,6 +13431,15 @@
         "errno": "~0.1.7"
       }
     },
+    "worker-rpc": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/worker-rpc/-/worker-rpc-0.1.1.tgz",
+      "integrity": "sha512-P1WjMrUB3qgJNI9jfmpZ/htmBEjFh//6l/5y8SD9hg1Ef5zTTVVoRjTrTEzPrNBQvmhMxkoTsjOXN10GWU7aCg==",
+      "dev": true,
+      "requires": {
+        "microevent.ts": "~0.1.1"
+      }
+    },
     "wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
@@ -12673,6 +13519,13 @@
       "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
       "dev": true
     },
+    "yaml": {
+      "version": "1.10.2",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.2.tgz",
+      "integrity": "sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==",
+      "dev": true,
+      "optional": true
+    },
     "yargs": {
       "version": "16.2.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
diff --git a/package.json b/package.json
index d022cb2..48b47ac 100644
--- a/package.json
+++ b/package.json
@@ -14,16 +14,21 @@
     "vuex": "^4.0.0-0"
   },
   "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^4.18.0",
+    "@typescript-eslint/parser": "^4.18.0",
     "@vue/cli-plugin-babel": "~4.5.0",
     "@vue/cli-plugin-eslint": "~4.5.0",
     "@vue/cli-plugin-router": "~4.5.0",
+    "@vue/cli-plugin-typescript": "^4.5.12",
     "@vue/cli-plugin-vuex": "~4.5.0",
     "@vue/cli-service": "~4.5.0",
     "@vue/compiler-sfc": "^3.0.0",
     "@vue/eslint-config-airbnb": "^5.0.2",
+    "@vue/eslint-config-typescript": "^7.0.0",
     "babel-eslint": "^10.1.0",
     "eslint": "^6.7.2",
     "eslint-plugin-import": "^2.20.2",
-    "eslint-plugin-vue": "^7.0.0"
+    "eslint-plugin-vue": "^7.0.0",
+    "typescript": "~4.1.5"
   }
 }
diff --git a/src/App.vue b/src/App.vue
index c3a04c9..34945a9 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -15,25 +15,4 @@ html {
   height: 100vh;
   max-height: 100vh;
 }
-
-/* #app {
-  font-family: Avenir, Helvetica, Arial, sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  text-align: center;
-  color: #2c3e50;
-}
-
-#nav {
-  padding: 30px;
-}
-
-#nav a {
-  font-weight: bold;
-  color: #2c3e50;
-}
-
-#nav a.router-link-exact-active {
-  color: #42b983;
-} */
 </style>
diff --git a/src/features/parser.js b/src/features/parser.ts
index f91d926..6ad1921 100644
--- a/src/features/parser.js
+++ b/src/features/parser.ts
@@ -2,7 +2,7 @@ import Lab from '@/models/Lab';
 import PeerTeacher from '@/models/PeerTeacher';
 import EventInfo from '../models/EventInfo';
 
-export function parseLabFile(file) {
+export function parseLabFile(file: File): Promise<Lab[]> {
   const validCourses = [
     '110',
     '111',
@@ -19,23 +19,23 @@ export function parseLabFile(file) {
   const reader = new FileReader();
 
   return new Promise((resolve, reject) => {
-    const result = [];
+    const result: Lab[] = [];
 
     reader.onload = (event) => {
       let jsonData;
       try {
-        jsonData = JSON.parse(event.target.result);
+        jsonData = JSON.parse(event.target!.result as string);
       } catch (e) {
         reject(new Error(e));
       }
       const labs = jsonData.data;
 
-      labs.forEach((lab) => {
+      labs.forEach((lab: any) => {
         if (validCourses.includes(lab.courseNumber)) {
           const newLab = new Lab(lab.courseNumber, lab.sequenceNumber);
 
           if (lab.instructionalMethod !== 'Web Based') {
-            lab.meetingsFaculty.every((meeting) => {
+            lab.meetingsFaculty.every((meeting: any) => {
               const { meetingTime } = meeting;
 
               if (meetingTime.meetingType === 'LAB') {
@@ -68,7 +68,7 @@ export function parseLabFile(file) {
   });
 }
 
-export function parsePtSchedule(file) {
+export function parsePtSchedule(file: File): Promise<PeerTeacher> {
   const reader = new FileReader();
 
   return new Promise((resolve) => {
@@ -76,7 +76,7 @@ export function parsePtSchedule(file) {
       const peerTeacher = new PeerTeacher();
       const namePattern = /^(.*)\s(.*)\s(\d{9})/;
       const eventPattern = /^(M?T?W?R?F?)\s(\d{1,2}:\d{2})\s?-\s?(\d{1,2}:\d{2})/;
-      const lines = event.target.result.split('\n').filter((line) => line.trim());
+      const lines = (event.target!.result as string).split('\n').filter((line) => line.trim());
 
       lines.forEach((line) => {
         const ptName = line.match(namePattern);
@@ -101,12 +101,15 @@ export function parsePtSchedule(file) {
   });
 }
 
-export function parsePtDatabase(file) {
+export function parsePtDatabase(file: File): Promise<{
+  labs: Map<string, Lab>,
+  peerTeachers: Map<number, PeerTeacher>
+}> {
   const reader = new FileReader();
 
   return new Promise((resolve) => {
     reader.onload = (event) => {
-      const jsonObj = JSON.parse(event.target.result);
+      const jsonObj = JSON.parse(event.target!.result as string);
       const result = {
         labs: new Map(),
         peerTeachers: new Map(),
@@ -121,10 +124,10 @@ export function parsePtDatabase(file) {
       Object.keys(jsonObj.peerTeachers).forEach((key) => {
         const pt = jsonObj.peerTeachers[key];
         const ptObj = new PeerTeacher(pt.firstname, pt.lastname, pt.uin);
-        ptObj.events = pt.events.map((eventObj) => new EventInfo(eventObj.days,
+        ptObj.events = pt.events.map((eventObj: any) => new EventInfo(eventObj.days,
           eventObj.start, eventObj.end));
         ptObj.assignedLabs = new Set();
-        pt.assignedLabs.forEach((labId) => {
+        pt.assignedLabs.forEach((labId: string) => {
           ptObj.assignedLabs.add(labId);
         });
         result.peerTeachers.set(key, ptObj);
diff --git a/src/main.js b/src/main.ts
index c673f53..c673f53 100644
--- a/src/main.js
+++ b/src/main.ts
diff --git a/src/models/EventInfo.js b/src/models/EventInfo.ts
index c1624a8..4493162 100644
--- a/src/models/EventInfo.js
+++ b/src/models/EventInfo.ts
@@ -1,13 +1,19 @@
 export default class EventInfo {
-  constructor(days = '', start = 0, end = 0) {
+  days: string;
+
+  start: number;
+
+  end: number;
+
+  constructor(days: string = '', start = 0, end = 0) {
     this.days = days;
     this.start = start;
     this.end = end;
   }
 
-  static timeToStr(time) {
+  static timeToStr(time: number) {
     let hour = Math.floor(time / 100);
-    let minute = time % 100;
+    const minute = time % 100;
     const meridiem = (hour < 12) ? 'AM' : 'PM';
 
     if (hour === 0) {
@@ -17,13 +23,12 @@ export default class EventInfo {
     }
 
     if (minute < 10) {
-      minute = `0${minute}`;
+      return `${hour}:0${minute} ${meridiem}`;
     }
-
     return `${hour}:${minute} ${meridiem}`;
   }
 
-  conflictsWith(event) {
+  conflictsWith(event: EventInfo) {
     const daysConflict = event.days.match(new RegExp(`[${this.days}]`));
 
     if (daysConflict) {
diff --git a/src/models/Lab.js b/src/models/Lab.ts
index 2e4412d..a6972ef 100644
--- a/src/models/Lab.js
+++ b/src/models/Lab.ts
@@ -1,6 +1,12 @@
 import EventInfo from '@/models/EventInfo';
 
 export default class Lab {
+  course: number;
+
+  section: number;
+
+  event: EventInfo;
+
   constructor(course = 0, section = 0, event = new EventInfo()) {
     this.course = course;
     this.section = section;
diff --git a/src/models/PeerTeacher.js b/src/models/PeerTeacher.ts
index 00a2f0d..f387431 100644
--- a/src/models/PeerTeacher.js
+++ b/src/models/PeerTeacher.ts
@@ -1,4 +1,16 @@
+import EventInfo from './EventInfo';
+
 export default class PeerTeacher {
+  firstname: string;
+
+  lastname: string;
+
+  uin: number;
+
+  events: EventInfo[];
+
+  assignedLabs: Set<string>;
+
   constructor(firstname = '', lastname = '', uin = 0) {
     this.firstname = firstname;
     this.lastname = lastname;
@@ -7,7 +19,7 @@ export default class PeerTeacher {
     this.assignedLabs = new Set();
   }
 
-  conflictsWith(event) {
+  conflictsWith(event: EventInfo) {
     let conflicts = false;
     this.events.every((item) => {
       if (item.conflictsWith(event)) {
diff --git a/src/router/index.js b/src/router/index.ts
index 7a598b3..7a598b3 100644
--- a/src/router/index.js
+++ b/src/router/index.ts
diff --git a/src/shims-vue.d.ts b/src/shims-vue.d.ts
new file mode 100644
index 0000000..3804a43
--- /dev/null
+++ b/src/shims-vue.d.ts
@@ -0,0 +1,6 @@
+/* eslint-disable */
+declare module '*.vue' {
+  import type { DefineComponent } from 'vue'
+  const component: DefineComponent<{}, {}, any>
+  export default component
+}
diff --git a/src/store/index.js b/src/store/index.ts
index 0c3a5c9..e63e257 100644
--- a/src/store/index.js
+++ b/src/store/index.ts
@@ -1,3 +1,5 @@
+import Lab from '@/models/Lab';
+import PeerTeacher from '@/models/PeerTeacher';
 import { createStore } from 'vuex';
 
 export default createStore({
@@ -6,24 +8,24 @@ export default createStore({
     peerTeachers: new Map(),
   },
   mutations: {
-    setLabs(state, labs) {
+    setLabs(state, labs: Map<string, Lab>) {
       state.labs = labs;
     },
-    setPeerTeachers(state, peerTeachers) {
+    setPeerTeachers(state, peerTeachers: Map<number, PeerTeacher>) {
       state.peerTeachers = peerTeachers;
     },
-    importLabs(state, labs) {
+    importLabs(state, labs: Lab[]) {
       state.labs.clear();
       labs.forEach((lab) => {
         state.labs.set(lab.id, lab);
       });
     },
-    addPeerTeachers(state, peerTeachers) {
+    addPeerTeachers(state, peerTeachers: PeerTeacher[]) {
       peerTeachers.forEach((pt) => {
         state.peerTeachers.set(pt.id, pt);
       });
     },
-    deletePeerTeacher(state, id) {
+    deletePeerTeacher(state, id: number) {
       state.peerTeachers.delete(id);
     },
   },
diff --git a/src/views/About.vue b/src/views/About.vue
index ab4725e..ac2bde1 100644
--- a/src/views/About.vue
+++ b/src/views/About.vue
@@ -7,18 +7,19 @@
   </div>
 </template>
 
-<script>
+<script lang="ts">
+import { defineComponent } from 'vue';
 import FileUpload from '../components/FileUpload.vue';
 
 import { parsePtDatabase } from '../features/parser';
 
-export default {
+export default defineComponent({
   name: 'About',
   components: {
     FileUpload,
   },
   methods: {
-    handleDatabaseChange(files) {
+    handleDatabaseChange(files: File[]) {
       parsePtDatabase(files[0]).then((result) => {
         this.$store.commit('setLabs', result.labs);
         this.$store.commit('setPeerTeachers', result.peerTeachers);
@@ -26,5 +27,5 @@ export default {
       });
     },
   },
-};
+});
 </script>
diff --git a/src/views/Editor.vue b/src/views/Editor.vue
index 5ef0131..fd83fb7 100644
--- a/src/views/Editor.vue
+++ b/src/views/Editor.vue
@@ -21,62 +21,58 @@
   </div>
 </template>
 
-<script>
+<script lang="ts">
+import { defineComponent } from 'vue';
 import ActionBar from '@/components/ActionBar.vue';
 import List from '@/components/List.vue';
 import PeerTeacher from '@/models/PeerTeacher';
+import Lab from '@/models/Lab';
 
-export default {
+export default defineComponent({
   name: 'Editor',
   components: {
     ActionBar,
     List,
   },
   computed: {
-    labs() {
+    labs(): Lab[] {
       return Array.from(this.$store.state.labs.values()).sort((a, b) => a.id
         .localeCompare(b.id));
     },
-    peerTeachers() {
+    peerTeachers(): PeerTeacher[] {
       return Array.from(this.$store.state.peerTeachers.values()).sort((a, b) => a.lastname
         .toUpperCase().localeCompare(b.lastname.toUpperCase()));
     },
-    compatibleLabs() {
+    compatibleLabs(): Lab[] {
       const temp = this.labs.filter((lab) => (!this.selectedPeerTeacher.assignedLabs.has(lab.id)
         && !this.selectedPeerTeacher.conflictsWith(lab.event)));
 
       const currentAssignments = this.selectedPeerTeacherAssignments;
-      return temp.filter((lab) => {
-        let compatible = true;
-        currentAssignments.every((assignedLab) => {
-          if (lab.event.conflictsWith(assignedLab.event)) {
-            compatible = false;
-            return false;
-          }
-          return true;
-        });
-        return compatible;
-      });
+      return temp.filter((lab) => !currentAssignments
+        .some((assignedLab) => lab.event.conflictsWith(assignedLab.event)));
     },
-    selectedPeerTeacherAssignments() {
-      return [...this.selectedPeerTeacher.assignedLabs.values()].map((id) => this.$store.state.labs
-        .get(id)).sort((a, b) => {
-        if (a.course < b.course) {
-          return -1;
-        }
-        if (b.course < a.course) {
-          return 1;
-        }
+    selectedPeerTeacherAssignments(): Lab[] {
+      return Array.from(this.selectedPeerTeacher.assignedLabs.values())
+        .flatMap((id) => {
+          const lab = this.$store.state.labs.get(id);
+          return (lab === undefined) ? [] : [lab];
+        }).sort((a, b) => {
+          if (a.course < b.course) {
+            return -1;
+          }
+          if (b.course < a.course) {
+            return 1;
+          }
 
-        if (a.section < b.section) {
-          return -1;
-        }
-        if (b.section < a.section) {
-          return 1;
-        }
+          if (a.section < b.section) {
+            return -1;
+          }
+          if (b.section < a.section) {
+            return 1;
+          }
 
-        return 0;
-      });
+          return 0;
+        });
     },
   },
   data() {
@@ -85,25 +81,25 @@ export default {
     };
   },
   methods: {
-    handlePtClick(peerTeacher) {
+    handlePtClick(peerTeacher: PeerTeacher) {
       this.selectedPeerTeacher = peerTeacher;
     },
-    deletePeerTeacher(id) {
+    deletePeerTeacher(id: number) {
       if (this.selectedPeerTeacher.id === id) {
         this.selectedPeerTeacher = new PeerTeacher();
       }
       this.$store.commit('deletePeerTeacher', id);
     },
-    assignLab(id) {
+    assignLab(id: string) {
       if (this.selectedPeerTeacher.id !== 0) {
         this.selectedPeerTeacher.assignedLabs.add(id);
       }
     },
-    unassignLab(id) {
+    unassignLab(id: string) {
       this.selectedPeerTeacher.assignedLabs.delete(id);
     },
   },
-};
+});
 </script>
 
 <style>
diff --git a/src/vuex-shim.d.ts b/src/vuex-shim.d.ts
new file mode 100644
index 0000000..c8a55f9
--- /dev/null
+++ b/src/vuex-shim.d.ts
@@ -0,0 +1,17 @@
+import { Store } from 'vuex';
+
+import PeerTeacher from './models/PeerTeacher';
+import Lab from './models/Lab';
+
+declare module '@vue/runtime-core' {
+  // declare your own store states
+  interface State {
+    peerTeachers: Map<number, PeerTeacher>,
+    labs: Map<string, Lab>
+  }
+
+  // provide typings for `this.$store`
+  interface ComponentCustomProperties {
+    $store: Store<State>
+  }
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..e621cbc
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,39 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    "strict": true,
+    "jsx": "preserve",
+    "importHelpers": true,
+    "moduleResolution": "node",
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "sourceMap": true,
+    "baseUrl": ".",
+    "types": [
+      "webpack-env"
+    ],
+    "paths": {
+      "@/*": [
+        "src/*"
+      ]
+    },
+    "lib": [
+      "esnext",
+      "dom",
+      "dom.iterable",
+      "scripthost"
+    ]
+  },
+  "include": [
+    "src/**/*.ts",
+    "src/**/*.tsx",
+    "src/**/*.vue",
+    "tests/**/*.ts",
+    "tests/**/*.tsx"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}