Comparison page implemented with stock price chart all time

backend/api/closing_price.py

@@ -0,0 +1,24 @@
+import os
+import pandas as pd
+import numpy as np
+from scraper.top100_extractor import programming_crime_list
+from typing import Optional
+
+DF_HIST_PATH: str = os.path.join(os.path.dirname(__file__), '..', '..', 'Elaborated_Data', 'price_history_data.csv')
+DF_HIST: Optional[pd.DataFrame] = None
+
+
+def lazy_load_history():
+    global DF_HIST
+    if DF_HIST is None:
+        DF_HIST = pd.read_csv(DF_HIST_PATH, index_col=0)
+
+
+def get_closing_price_hist(tickers: list[str]) -> list[dict]:
+    lazy_load_history()
+    ticker_series = pd.Series(tickers)
+    df = DF_HIST.loc[DF_HIST.symbol.isin(ticker_series), :] \
+        .rename(columns={"Closing Price": "price", "symbol": "ticker"}) \
+        .reset_index(drop=True)
+    df = df.pivot(index='date', columns='ticker', values='price').reset_index(drop=False)
+    return df.replace({ np.nan: None }).to_dict('records')

stockingly-frontend/package.json

@@ -10,12 +10,16 @@
   },
   "dependencies": {
     "@mdi/font": "^7.2.96",
+    "ag-charts-community": "^7.3.0",
+    "ag-charts-vue3": "^7.3.0",
     "core-js": "^3.29.0",
     "debounce": "^1.2.1",
     "fuse.js": "^6.6.2",
     "roboto-fontface": "*",
     "round-to": "^6.0.0",
     "vue": "^3.2.0",
+    "vue-class-component": "^8.0.0-beta.3",
+    "vue-property-decorator": "^9.1.2",
     "vue-router": "^4.0.0",
     "vuetify": "^3.2.3",
     "webfontloader": "^1.0.0"
@@ -25,7 +29,7 @@
     "@types/debounce": "^1.2.1",
     "@types/node": "^18.15.0",
     "@types/webfontloader": "^1.6.35",
-    "@vitejs/plugin-vue": "^3.0.3",
+    "@vitejs/plugin-vue": "^4.0.0",
     "@vue/eslint-config-typescript": "^11.0.0",
     "eslint": "^8.22.0",
     "eslint-plugin-vue": "^9.3.0",

stockingly-frontend/src/api/index.ts

@@ -20,8 +20,16 @@ export interface Company {
     'Past Performance': number;
 }
 
+export interface PriceHistory {
+    date: string;
+    [ticker: string]: string | number; // really just number
+}
+
 export const getCompanies = (): Promise<Company[]> =>
     fetch(BACKEND_URL + '/companies').then(r => r.json()).then(list => list.map((e: Company) => ({
         ...e,
         logoSrc: `${BACKEND_URL}/companies/logos/${e.ticker}`
     })));
+
+export const getPriceHistory = (tickers: string[]): Promise<PriceHistory[]> => 
+    fetch(BACKEND_URL + '/price_history/' + tickers.join(',').toUpperCase()).then(r => r.json())

stockingly-frontend/src/router/index.ts

@@ -14,6 +14,11 @@ const routes = [
         // which is lazy-loaded when the route is visited.
         component: () => import(/* webpackChunkName: "home" */ '@/views/Home.vue'),
       },
+      {
+        path: '/comparison/:tickers([A-Z]+)+',
+        name: 'Comparison',
+        component: () => import(/* webpackChunkName: "comparison" */ '@/views/Comparison.vue'),
+      },
     ],
   },
 ]

stockingly-frontend/src/views/Comparison.vue

@@ -0,0 +1,52 @@
+<template>
+  <v-app-bar color="primary">
+    <v-btn icon @click="goHome">
+      <v-icon>mdi-home</v-icon>
+    </v-btn>
+    <v-app-bar-title>
+      Stockingly
+    </v-app-bar-title>
+  </v-app-bar>
+  <v-container class="fill-height">
+    <h1>Stock price over time</h1>
+    <ag-charts-vue v-if="options !== null" :options="options" style="width: 100%; height: 30em" />
+  </v-container>
+</template>
+
+<script setup lang="ts">
+import { AgChartsVue } from 'ag-charts-vue3';
+import { ref, onMounted } from 'vue';
+import { useRoute, useRouter } from 'vue-router';
+import { PriceHistory, getPriceHistory } from '@/api';
+
+const route = useRoute();
+const router = useRouter();
+
+const goHome = () => router.push('/');
+
+const options = ref<object | null>(null);
+
+// load chart data
+onMounted(() => {
+  const tickers = route.params.tickers.toString().split(',');
+  console.log(tickers);
+  getPriceHistory(tickers).then((p: PriceHistory[]) => {
+    options.value = {
+      data: p.map(e => ({ ...e, date: Date.parse(e.date) })),
+      series: tickers.map((t: string) => ({ xKey: 'date', yKey: t })),
+      axes: [
+        {
+          type: 'time',
+          position: 'bottom',
+        },
+        {
+          type: 'number',
+          position: 'left',
+        },
+      ],
+    };
+  });
+});
+
+
+</script>

stockingly-frontend/src/views/Home.vue

@@ -75,7 +75,8 @@
     <small class="ma-2">{{ selected.length }} / {{ MAX_SELECT }} companies selected:</small>
     <v-chip class="ma-2" color="secondary" closable style="flex: initial !important" v-for="s in selected" :key="s"
       @click:close="unselect(s)">{{ s }}</v-chip>
-    <v-btn class="ma-2" variant="flat" size="small" color="primary" prepend-icon="mdi-chart-areaspline-variant">
+    <v-btn class="ma-2" variant="flat" size="small" color="primary" prepend-icon="mdi-chart-areaspline-variant"
+      @click="goToComparison(selected)">
       Compare
     </v-btn>
     <v-btn class="ma-2" size="small" variant="flat" color="error" @click="selected.splice(0, selected.length)"
@@ -91,6 +92,7 @@ import { ref, reactive, computed, watch } from 'vue';
 import { roundTo } from 'round-to';
 import debounce from 'debounce';
 import Fuse from 'fuse.js';
+import { useRouter } from 'vue-router';
 
 const MAX_SELECT = 3;
 
@@ -99,6 +101,7 @@ const companies = ref<Company[]>([]);
 const filteredCompanies = ref<(Company & { score?: number })[]>([]);
 const selected = reactive<string[]>([]);
 const searchText = ref("");
+const router = useRouter();
 let fuse: Fuse<Company> | undefined = undefined;
 
 const search = debounce(() => setTimeout(() => {
@@ -132,6 +135,8 @@ const clearSearch = () => searchText.value = '';
 
 const setSearch = (text: string) => searchText.value = text;
 
+const goToComparison = (tickers: string[]) => router.push('/comparison/' + tickers.join('/').toUpperCase());
+
 watch(filteredCompanies, () => loading.value = false);
 
 type ColorScale = { gt?: number, color: string }[];
@@ -217,13 +222,9 @@ const metrics = computed<ExtendedMetric[]>(() => metricsData.map(e => ({
   percentage: (c: Company) => (e.value(c) - e.minValue) * 100 / (e.maxValue - e.minValue),
   value: (c: Company) => roundTo(e.value(c), e.decimals ?? 2),
   color: (c: Company) => {
-    console.log(JSON.parse(JSON.stringify(e.scale)));
     const value = e.value(c);
-    console.log(c.ticker, value);
     for (const s of e.scale) {
-      console.log('checking', s.gt, s.color);
       if (typeof s.gt !== 'number' || value > s.gt) {
-        console.log(s.gt, s.color);
         return s.color;
       }
     }

stockingly-frontend/yarn.lock

@@ -327,10 +327,10 @@
     "@typescript-eslint/types" "5.59.2"
     eslint-visitor-keys "^3.3.0"
 
-"@vitejs/plugin-vue@^3.0.3":
+"@vitejs/plugin-vue@^4.0.0":
-  version "3.2.0"
+  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/@vitejs/plugin-vue/-/plugin-vue-3.2.0.tgz#a1484089dd85d6528f435743f84cdd0d215bbb54"
+  resolved "https://registry.yarnpkg.com/@vitejs/plugin-vue/-/plugin-vue-4.2.3.tgz#ee0b6dfcc62fe65364e6395bf38fa2ba10bb44b6"
-  integrity sha512-E0tnaL4fr+qkdCNxJ+Xd0yM31UwMkQje76fsDVBBUCoGOUPexu2VDUYHL8P4CwV+zMvWw6nlRw19OnRKmYAJpw==
+  integrity sha512-R6JDUfiZbJA9cMiguQ7jxALsgiprjBeHL5ikpXfJCH62pPHtI+JdJ5xWj6Ev73yXSlYl86+blXn1kZHQ7uElxw==
 
 "@volar/language-core@1.4.1":
   version "1.4.1"
@@ -563,6 +563,16 @@ acorn@^8.8.0:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.8.2.tgz#1b2f25db02af965399b9776b0c2c391276d37c4a"
   integrity sha512-xjIYgE8HBrkpd/sJqOGNspf8uHG+NOHGOw6a/Urj8taM2EXfdNAH2oFcPeIFfsv3+kz/mJrS5VuMqbNLjCa2vw==
 
+ag-charts-community@^7.3.0:
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/ag-charts-community/-/ag-charts-community-7.3.0.tgz#575284d2ed248fc725fc6b3029c7eae9872cec39"
+  integrity sha512-118U6YsCMia6iZHaN06zT19rr2SYa92WB73pMVCKQlp2H3c19uKQ6Y6DfKG/nIfNUzFXZLHBwKIdZXsMWJdZww==
+
+ag-charts-vue3@^7.3.0:
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/ag-charts-vue3/-/ag-charts-vue3-7.3.0.tgz#afb4e978fecb80c9066856dc4741bad5a811d742"
+  integrity sha512-ftGrgH+xfI7PzXWW0N48KZkd7qhWqaS58VsSKeWNTJRqAzUIEI103EDGdi8VcD2D91JmLCkChGR2RyP3EVN75Q==
+
 ajv@^6.10.0, ajv@^6.12.4:
   version "6.12.6"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.6.tgz#baf5a62e802b07d977034586f8c3baf5adf26df4"
@@ -1613,6 +1623,11 @@ vite@^4.2.0:
   optionalDependencies:
     fsevents "~2.3.2"
 
+vue-class-component@^8.0.0-beta.3:
+  version "8.0.0-rc.1"
+  resolved "https://registry.yarnpkg.com/vue-class-component/-/vue-class-component-8.0.0-rc.1.tgz#db692cd97656eb9a08206c03d0b7398cdb1d9420"
+  integrity sha512-w1nMzsT/UdbDAXKqhwTmSoyuJzUXKrxLE77PCFVuC6syr8acdFDAq116xgvZh9UCuV0h+rlCtxXolr3Hi3HyPQ==
+
 vue-eslint-parser@^9.0.1, vue-eslint-parser@^9.1.1:
   version "9.2.0"
   resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-9.2.0.tgz#b397a7afae29961e5c59d80e895ab54a2e7f2f41"
@@ -1626,6 +1641,11 @@ vue-eslint-parser@^9.0.1, vue-eslint-parser@^9.1.1:
     lodash "^4.17.21"
     semver "^7.3.6"
 
+vue-property-decorator@^9.1.2:
+  version "9.1.2"
+  resolved "https://registry.yarnpkg.com/vue-property-decorator/-/vue-property-decorator-9.1.2.tgz#266a2eac61ba6527e2e68a6933cfb98fddab5457"
+  integrity sha512-xYA8MkZynPBGd/w5QFJ2d/NM0z/YeegMqYTphy7NJQXbZcuU6FC6AOdUAcy4SXP+YnkerC6AfH+ldg7PDk9ESQ==
+
 vue-router@^4.0.0:
   version "4.1.6"
   resolved "https://registry.yarnpkg.com/vue-router/-/vue-router-4.1.6.tgz#b70303737e12b4814578d21d68d21618469375a1"

stockingly.py

@@ -2,7 +2,9 @@ from flask import Flask, jsonify, redirect, url_for, send_from_directory
 from flask_cors import CORS
 from backend.utils.build_frontend import build_frontend
 from backend.api.companies import get_companies
+from backend.api.closing_price import get_closing_price_hist
 import os
+import sys
 import subprocess
 
 
@@ -26,6 +28,12 @@ def companies() -> object:
     return jsonify(get_companies(ROOT_DIR))
 
 
+@app.route('/price_history/<tickers>', methods=['GET'])
+def price_history(tickers) -> object:
+    tickers: list[str] = str(tickers).split(',')
+    return jsonify(get_closing_price_hist(tickers))
+
+
 @app.route('/companies/logos/<ticker>')
 def get_company_logo(ticker: str):
     logo_dir: str = os.path.join(ROOT_DIR, 'scraper', 'logos', 'logos')
@@ -38,5 +46,6 @@ def get_company_logo(ticker: str):
 
 
 if __name__ == '__main__':
-    build_frontend()
+    if len(sys.argv) < 2 or sys.argv[1] != 'no-frontend':
+        build_frontend()
     app.run()