chore: move backend to separate dir

backend/init-db.py

@@ -0,0 +1,48 @@
+from flask_bcrypt import Bcrypt
+import os
+import sqlite3
+
+if os.path.isfile("sms.db"):
+    os.unlink("sms.db")
+
+flask_bcrypt = Bcrypt()
+
+con = sqlite3.connect("sms.db")
+cur = con.cursor()
+
+# ID columns are not necessary - SQLite by default sets ROWID as INTEGER PRIMARY KEY which auto increments
+cur.execute("CREATE TABLE devices(access_key, secret_key_hash, type, name)")
+
+# type                : INCOMING, OUTGOING
+# local_phone_number  : a SECONDARY device SIM's phone number
+# remote_phone_number : a phone number or shortcode of the other party
+# TODO add column for sender's access key
+cur.execute("CREATE TABLE messages(content, ts_received, ts_sent, type, local_phone_number, remote_phone_number)")
+cur.execute("CREATE TABLE sim_events(sim_id, ts, note, cost, currency)")
+cur.execute("CREATE TABLE sim_cards(phone_number, device_access_key)")
+cur.execute("CREATE TABLE message_queue(content, sender_access_key, local_phone_number, remote_phone_number)")
+
+pw1_hash = flask_bcrypt.generate_password_hash('pw1').decode('utf-8')
+pw2_hash = flask_bcrypt.generate_password_hash('pw2').decode('utf-8')
+cur.execute("""
+    INSERT INTO devices VALUES
+    ('test_access_key', ?, 'PRIMARY', 'test-primary'),
+    ('test_access_key2', ?, 'SECONDARY', 'test-secondary')
+""", (pw1_hash, pw2_hash))
+
+cur.execute("""
+    INSERT INTO sim_cards VALUES
+    ('+420123456789', 'test_access_key'),
+    ('+421000111222', 'test_access_key'),
+    ('+422999888777', 'test_access_key2')
+""")
+
+cur.execute("""
+    INSERT INTO messages VALUES
+    ('how are you?', 1000, 999, 'INCOMING', '+420123456789', '+10005558888'),
+    ('i am fine', 2000, 1999, 'OUTGOING', '+420123456789', '+10005558888')
+""")
+
+con.commit()
+con.close()
+