From 005cfc69606d64967aa794f69a7967a3c4013bfa Mon Sep 17 00:00:00 2001
From: Manish <coder@noreply.radii.dev>
Date: Tue, 5 Jul 2022 12:52:22 +0200
Subject: [PATCH] fix: added missing element.sh file

---
 element.sh | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/element.sh b/element.sh
index 57ae033..0e3cd9d 100644
--- a/element.sh
+++ b/element.sh
@@ -1 +1,29 @@
+#!/bin/bash
+
+PSQL="psql -X --username=freecodecamp --dbname=periodic_table --no-align --tuples-only -c"
+if [[ $# -ge 1 ]]
+then
+  if [[ $1 =~ ^[0-9]+$ ]]
+  then
+    ELEMENTQUERY=$($PSQL "SELECT atomic_number, symbol, name FROM elements WHERE atomic_number=$1")
+    IFS="|" read ATOMIC_NUMBER SYMBOL NAME <<< $ELEMENTQUERY
+  elif [[ ${#1} -le 2 ]]
+  then
+    ELEMENTQUERY=$($PSQL "SELECT atomic_number, symbol, name FROM elements WHERE symbol='$1'")
+    IFS="|" read ATOMIC_NUMBER SYMBOL NAME <<< $ELEMENTQUERY
   else
+    ELEMENTQUERY=$($PSQL "SELECT atomic_number, symbol, name FROM elements WHERE name='$1'")
+    IFS="|" read ATOMIC_NUMBER SYMBOL NAME <<< $ELEMENTQUERY
+  fi
+  if [[ ${#ELEMENTQUERY} -le 0 ]]
+  then
+    echo -e  "I could not find that element in the database."
+  else
+    PROPERTIESQUERY=$($PSQL "SELECT atomic_mass::REAL, melting_point_celsius, boiling_point_celsius, type_id FROM properties WHERE atomic_number=$ATOMIC_NUMBER")
+    IFS="|" read ATOMIC_MASS MELTING_POINT BOILING_POINT TYPE_ID <<< $PROPERTIESQUERY
+    TYPE=$($PSQL "SELECT type FROM types WHERE type_id=$TYPE_ID")
+    echo -e "The element with atomic number $ATOMIC_NUMBER is $NAME ($SYMBOL). It's a $TYPE, with a mass of $ATOMIC_MASS amu. $NAME has a melting point of $MELTING_POINT celsius and a boiling point of $BOILING_POINT celsius."
+  fi
+else
+  echo "Please provide an element as an argument."
+fi
\ No newline at end of file