From e68a6eeb3645245822321a8d8aa0da6b72a5cddb Mon Sep 17 00:00:00 2001
From: Tommaso Verzegnassi <verzet@usi.ch>
Date: Mon, 29 May 2023 13:38:02 +0200
Subject: [PATCH] things occurred

---
 backend/api/eps.py                            | 17 ++++
 .../src/components/EpsChart.vue               | 88 +++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 backend/api/eps.py
 create mode 100644 stockingly-frontend/src/components/EpsChart.vue

diff --git a/backend/api/eps.py b/backend/api/eps.py
new file mode 100644
index 0000000..702272c
--- /dev/null
+++ b/backend/api/eps.py
@@ -0,0 +1,17 @@
+import os
+import pandas as pd
+import numpy as np
+from scraper.top100_extractor import programming_crime_list
+from typing import Optional
+
+DF_EPS_PATH: str = os.path.join(os.path.dirname(__file__), '..', '..', 'Elaborated_Data', 'eps_quarterly_bar_chart.csv')
+
+
+def get_eps(tickers: list[str]) -> list[dict]:
+    df = pd.read_csv(DF_EPS_PATH)
+    ticker_series = pd.Series(tickers)
+    df = df.loc[df.symbol.isin(ticker_series), :] \
+        .rename(columns={"epsActual": "quarterlyEps", "symbol": "ticker"}) \
+        .reset_index(drop=True)
+    df = df.pivot(index='quarter', columns='ticker', values='quarterlyEps').reset_index(drop=False)
+    return df.replace({ np.nan: None }).to_dict('records')
\ No newline at end of file
diff --git a/stockingly-frontend/src/components/EpsChart.vue b/stockingly-frontend/src/components/EpsChart.vue
new file mode 100644
index 0000000..0f84ff1
--- /dev/null
+++ b/stockingly-frontend/src/components/EpsChart.vue
@@ -0,0 +1,88 @@
+<template>
+  <v-row>
+    <v-col cols="12">
+      <v-card>
+        <v-card-item>
+          <v-card-title>Earnings per Share (EPS)</v-card-title>
+        </v-card-item>
+        <v-card-text>
+          <v-skeleton-loader class="chart-loader" v-if="epsData.loading" />
+          <ag-charts-vue class="chart" v-else :options="options" />
+        </v-card-text>
+      </v-card>
+    </v-col>
+  </v-row>
+</template>
+ 
+<script setup lang="ts">
+import { EmployeeCount, Eps, getEmployees, getEps } from '@/api';
+import { defineLoader } from '@/api/loader';
+import { time } from 'ag-charts-community';
+import { DateTime } from 'luxon';
+import { roundTo } from 'round-to';
+import { onMounted, computed } from 'vue';
+import { AgChartsVue } from 'ag-charts-vue3';
+
+const renderer = (params: any) => ({
+  title: params.title,
+  content: DateTime.fromMillis(params.xValue).year + ': ' + roundTo(params.yValue, 0),
+});
+
+
+const props = defineProps<{
+  tickers: string[],
+  colors: string[]
+}>();
+
+const getTickerColor = (ticker: string) => props.colors[props.tickers.indexOf(ticker)];
+
+const epsData = defineLoader<Eps[]>(() => getEps(props.tickers));
+
+const options = computed(() => {
+  if (epsData.loading) return null;
+
+  return {
+    theme: 'ag-material',
+    data: epsData.data?.map(e => ({ ...e, quarter: Date.parse(e.quarter) })),
+    series: props.tickers.map((t: string) => ({
+      xKey: 'quarter',
+      type: 'column',
+      yKey: t,
+      yName: t,
+      stroke: getTickerColor(t),
+      tooltip: { renderer: renderer },
+      marker: {
+        fill: getTickerColor(t),
+        stroke: getTickerColor(t)
+      }
+    })),
+    axes: [
+      {
+        type: 'time',
+        position: 'bottom',
+        tick: {
+          interval: time.month.every(3, {
+            snapTo: DateTime.utc(2000, 1, 1).toJSDate() // snap to solar year quarters
+          })
+        },
+        label: {
+          autoRotate: true,
+          autoRotateAngle: 335,
+          format: '%Y-%m'
+        }
+      },
+      {
+        type: 'number',
+        position: 'left',
+      },
+    ],
+    legend: {
+      position: 'bottom',
+    }
+  };
+});
+
+onMounted(() => {
+  epsData.load();
+});
+</script>
\ No newline at end of file