intial switch to sqlite

[phrases.git] / phrases.py

diff --git a/phrases.py b/phrases.py
index 63199d141d996cccc70d160ad3f71438f2909a32..46db7829c2abe8dabf482c6387545846978f69c4 100755 (executable)
--- a/phrases.py
+++ b/phrases.py
@@ -1,11 +1,12 @@
 #!/usr/bin/env python3
-# Display Latin famous phrases in the terminal
+# Display Latin famous phrases in the terminal - python version
 # Armaan Bhojwani 2020
 
 import argparse
-import csv
-import random
+from random import randint
+import sqlite3
 import sys
+import os.path
 
 def main(args=sys.argv[1:]):
     # Argument parsing
@@ -22,65 +23,63 @@ def main(args=sys.argv[1:]):
                         help="print the English translation.")
     parser.add_argument("-n", "--notes",
                         action='store_true',
-                        help="print any notes on phrase")
+                        help="print any notes on phrase.")
     parser.add_argument("-m", "--min",
                         default=0,
                         type=int,
-                        help="set the minimum length of the Latin phrase")
+                        help="set the minimum length of the Latin phrase.")
     parser.add_argument("-M", "--max",
                         default=10000000,
                         type=int,
-                        help="set the maximum length of Latin phrase")
+                        help="set the maximum length of Latin phrase.")
     parser.add_argument("-p", "--num",
                         action='store_true',
-                        help="print number of possibilities within constraints")
+                        help="print number of possible phrases.")
     parser.add_argument("-f", "--file",
-                        default="/usr/share/phrases/phrases.csv",
-                        help="set the location of the phrase file")
+                        help="set the location of the phrase database.")
+    parser.add_argument("-o", "--open",
+                        type=int,
+                        help="specify the id of a specific phrase to print.")
     args = parser.parse_args()
 
-    right_length = []
-
-    # convert csv file into list
-    with open(args.file) as f:
-        reader = csv.reader(f)
-        next(reader, None) # skip header
-        all_lines = list(reader) 
-    f.close()
-
-    # iterate through all the phrases
-    for row in all_lines:
-        try: # generate a shortlist of phrases of the right length
-            if args.max >= int(row[4]) >= args.min:
-                right_length.append(row[0])
-        except: # skip malformed rows without exiting
-            pass
-
-    try: # choose a random id from the shortlist
-        chosen = int(right_length[random.randint(0, len(right_length) - 1)])
-    except:
-        sys.exit("No phrase within the given parameters!")
+    # find phrase file
+    if args.file:
+        phrase_file = args.file
+    if os.path.isfile("phrases.db"):
+        phrase_file = "phrases.db"
+    elif os.path.isfile("/usr/local/share/phrases/phrases.db"):
+        phrase_file = "/usr/local/share/phrases/phrases.db"
+    else:
+        sys.exit("cannot find the phrase database!")
+    
+    conn = sqlite3.connect(phrase_file)
+    c = conn.cursor()
+    c.execute("SELECT * FROM phrases WHERE length <= (?) AND length >= (?)",
+              (args.max, args.min))
+    data = c.fetchall()
+    rown = randint(0, len(data))
+    row = list(data[rown]) 
 
     # Output as specified in flags
-    for row in all_lines:
-        if int(row[0]) == chosen:
-            if not (args.id
-                    or args.latin
-                    or args.english
-                    or args.notes
-                    or args.num):
-                print(row[1])
-            else:
-                if args.id:
-                    print(row[1])
-                if args.latin:
-                    print(row[1])
-                if args.english:
-                    print(row[2])
-                if args.notes:
-                    print(row[3])
-                if args.num:
-                    print(len(right_length))
+    if not (args.id
+            or args.latin
+            or args.english
+            or args.notes
+            or args.num):
+        print(row[1])
+        sys.exit(0)
+    else:
+        if args.id:
+            print(row[0])
+        if args.latin:
+            print(row[1])
+        if args.english:
+            print(row[2])
+        if args.notes:
+            print(row[3])
+        if args.num:
+            print(len(data))
+        sys.exit(0)
 
 if __name__ == "__main__":
     main()