From 81ab430b469e132593fd2a34df0bbbbcbe434e85 Mon Sep 17 00:00:00 2001
From: Matthew Grove <me@mgrove.uk>
Date: Wed, 12 Feb 2020 12:23:56 +0000
Subject: [PATCH] Add third pre-release task

---
 computer-science-igcse-prereleases.py | 115 +++++++++++++++++++++++++-
 1 file changed, 114 insertions(+), 1 deletion(-)

diff --git a/computer-science-igcse-prereleases.py b/computer-science-igcse-prereleases.py
index 29240ea..31e1b21 100644
--- a/computer-science-igcse-prereleases.py
+++ b/computer-science-igcse-prereleases.py
@@ -210,4 +210,117 @@ def prerelease_047822_india_2020():
     payments_number = [1, 48, 80]
     print("%d payment(s) of Rs %.2f" % (payments_number[payment_option - 1], cost / payments_number[payment_option - 1]))
 
-prerelease_047822_india_2020()
\ No newline at end of file
+def get_input(dict):
+    tmp = None
+    while (not tmp):
+        tmp = input().upper().strip()
+        if (not tmp in dict.keys()):
+            print("Please enter a valid product code.")
+            device = None
+    return tmp
+
+def print_details(dict):
+    for item in dict.keys():
+        print("%s: $%.2f, %s" % (item, dict[item][0], dict[item][1]))
+
+def print_chosen(dict, item):
+    print("%s: %s" % (item, dict[item][1]))
+    return dict[item][0]
+
+def prerelease_098421_uk_1_2020():
+    # dictionaries of for items, prices and descriptions
+    phones_dict = {"BPCM": (29.99, "Compact"),
+                "BPSH": (49.99, "Clam Shell"),
+                "RPSH": (199.99, "RoboPhone – 5-inch screen and 64 GB memory"),
+                "RPLL": (499.99,"RoboPhone – 6-inch screen and 256 GB memory"),
+                "YPLS": (549.99,"Y-Phone Standard – 6-inch screen and 64 GB memory"),
+                "YPLL": (649.99, "Y-Phone Deluxe – 6-inch screen and 256 GB memory")}
+
+    tablets_dict = {"RTMS": (149.99, "RoboTab – 8-inch screen and 64 GB memory"),
+                    "RTLM": (299.99, "RoboTab – 10-inch screen and 128 GB memory"),
+                    "YTLM": (499.99, "Y-Tab Standard – 10-inch screen and 128 GB memory"),
+                    "YTLL": (599.99, "Y-Tab Deluxe – 10-inch screen and 256 GB memory")}
+    
+    # dictionary for all devices (phones and tablets)
+    devices_dict = {**phones_dict , **tablets_dict}
+
+    # dictionary for SIMs
+    sims_dict = {"SMNO": (0.00, "SIM Free (no SIM card purchased)"),
+                "SMPG": (9.99, "Pay As You Go (SIM card purchased)")}
+
+    # dictionary for cases
+    case_dict = {"CSST": (0.00, "Standard"),
+                "CSLX": (50.00, "Luxury")}
+
+    # dictionary for chargers
+    charger_dict = {"CGCR": (19.99, "Car"),
+                    "CGHM": (15.99, "Home")}
+    
+    # total cost
+    total = 0
+    # total amount of money saved
+    saving = 0
+    # ensure user is asked for input until they don't want more devices
+    run = True
+    # total number of devices ordered
+    devices = 0
+
+    # run until user doesn't want any more devices
+    while run:
+        # get chosen device
+        print("Choose an option:")
+        print_details(devices_dict)
+        device = get_input(devices_dict)
+        # increase number of devices ordered
+        devices += 1
+
+        # if phone chosen
+        if (device in phones_dict.keys()):
+            # get chosen SIM
+            print("Choose an option:")
+            print_details(sims_dict)
+            sim_payg = get_input(sims_dict)
+        
+        # get chosen case
+        print("Choose an option:")
+        print_details(case_dict)
+        case = get_input(case_dict)
+
+        # get chosen charger(s)
+        print("Which charger(s) would you like? Enter the codes for those you want with a space between them, or enter nothing to choose neither")
+        print_details(charger_dict)
+        # create array of chosen chargers
+        chargers = input().upper().split(" ")
+        # remove invalid product codes
+        for item in chargers:
+            if item not in charger_dict:
+                chargers.remove(item)
+
+        # if not first device, apply discount
+        if (devices > 1):
+            # add cost of device to total
+            total += 0.9 * print_chosen(devices_dict, device)
+            # record discount applied
+            saving += 0.1 * print_chosen(devices_dict, device)
+        # if first device, don't apply discount
+        else:
+            # add cost of device to total
+            total += print_chosen(devices_dict, device)
+        # if phone chosen, add cost of SIM to total
+        if (device in phones_dict):
+            total += print_chosen(sims_dict, sim_payg)
+        # add cost of chosen case to total
+        total += print_chosen(case_dict, case)
+        # add cost of chosen chargers to total
+        for charger in chargers:
+            total += print_chosen(charger_dict, charger)
+        # print subtotal
+        print("Subtotal: $%.2f" % total)
+        # ask if user want another device, and keep running if they do
+        run = True if (input("Would you like another device (y/n)?").lower().strip()[0] == "y") else False
+    
+    # print total cost and saving
+    print("Total: $%.2f\nSaving: $%.2f" % (total, saving))
+
+
+prerelease_098421_uk_1_2020()
\ No newline at end of file