from MonetDB import *
from PostgreSQL import *
import time

#Monet DB
requeteSelect1MonetDB = """SELECT * FROM flights WHERE "AIRLINE" = 'AA';"""
requeteSelect2MonetDB = """SELECT * FROM flights;"""
requeteSelect3MonetDB = """SELECT * FROM flights WHERE "DAY" > 10;"""
requeteSelect4MonetDB = """SELECT * FROM flights WHERE "DAY" > 30;"""

requeteCreateTableMonetDB = """CREATE TABLE flights10 AS SELECT * FROM FLIGHTS WHERE "DAY" > 10;"""
requeteDeleteMonetDB = """DELETE FROM flights WHERE "DAY" > 10;"""
requeteInsertMonetDB = """INSERT INTO flights SELECT * FROM flights10;"""
requeteDropflight10MonetDB = """DROP TABLE flights10;"""


#Postgre SQL
requeteSelect1PostgreSQL = """SELECT * FROM public.flights WHERE airline = 'AA'"""
requeteSelect2PostgreSQL = """SELECT * FROM public.flights"""
requeteSelect3PostgreSQL = """SELECT * FROM public.flight WHERE "DAY" > 10"""
requeteSelect4PostgreSQL = """SELECT * FROM public.flight WHERE "DAY" > 30"""

requeteCreateTablePostgreSQL = """CREATE TABLE flights10 AS SELECT * FROM FLIGHTS WHERE "DAY" > 10"""
requeteDeletePostgreSQL = """DELETE FROM flights WHERE "DAY" > 10"""
requeteInsertPostgreSQL = """INSERT INTO flights SELECT * FROM flights10"""

def display_table(data, headers):
     max_len = max(len(header) for header in headers)
     print(" | ".join(header.ljust(max_len) for header in headers))
     sep = "-" * max_len
     print("-|-".join(sep for _ in headers))
     for row in data:
        print(" | ".join(header.ljust(max_len) for header in row))

def initMonetDB():
    reset_data_monetdb()
    start_time = time.time()
    create_table_monetdb()
    end_time = time.time()
    print("[MonetDB] create table: time = ", (end_time - start_time), "s\n")

    start_time = time.time()
    load_data_monetdb()
    end_time = time.time()
    print("[MonetDB] load data : time = ", (end_time - start_time), "s\n")

def execMonetDB(str):
    start_time = time.time()
    requete_monetdb(str)
    end_time = time.time()
    return end_time-start_time

def runMonetDB():
    execForMonetDB(5,[requeteSelect1MonetDB])
    execForMonetDB(5,[requeteSelect2MonetDB])
    execForMonetDB(5,[requeteSelect3MonetDB])
    execForMonetDB(5,[requeteSelect4MonetDB])
    execForMonetDB(5,[requeteDropflight10MonetDB,requeteCreateTableMonetDB,requeteDeleteMonetDB,requeteInsertPostgreSQL])

#execute n fois les n requêtes
def execForMonetDB(n, tabReq):
    t = [0] * len(tabReq)
    for i in range(n) :
        for j in range(len(tabReq)) :
            t[j]+=execMonetDB(tabReq[j])
    
    for j in range(len(tabReq)):
        t[j] = t[j]/n
        print("[MonetDB] requete (moyenne de",n,") :", tabReq[j] , "\n time = ", t[j], "s\n")

    

def runPostgreSQL():
    reset_database_postgres()
    create_tables_postgres()
    create_data_postgres()
    #requete_postgres(str)

if __name__ == '__main__':
    initMonetDB()
    runMonetDB()
    #runPostgreSQL()