########################### DO NOT MODIFY THIS SECTION ##########################
#################################################################################
import sqlite3
from sqlite3 import Error
import csv
#################################################################################

## Change to False to disable Sample
SHOW = True

############### SAMPLE CLASS AND SQL QUERY ###########################
######################################################################
class Sample():
    def sample(self):
        try:
            connection = sqlite3.connect("sample")
            connection.text_factory = str
        except Error as e:
            print("Error occurred: " + str(e))
        print('\033[32m' + "Sample: " + '\033[m')
        
        # Sample Drop table
        connection.execute("DROP TABLE IF EXISTS sample;")
        # Sample Create
        connection.execute("CREATE TABLE sample(id integer, name text);")
        # Sample Insert
        connection.execute("INSERT INTO sample VALUES (?,?)",("1","test_name"))
        connection.commit()
        # Sample Select
        cursor = connection.execute("SELECT * FROM sample;")
        print(cursor.fetchall())

######################################################################

class HW2_sql():
    ############### DO NOT MODIFY THIS SECTION ###########################
    ######################################################################
    def create_connection(self, path):
        connection = None
        try:
            connection = sqlite3.connect(path)
            connection.text_factory = str
        except Error as e:
            print("Error occurred: " + str(e))
    
        return connection

    def execute_query(self, connection, query):
        cursor = connection.cursor()
        try:
            if query == "":
                return "Query Blank"
            else:
                cursor.execute(query)
                connection.commit()
                return "Query executed successfully"
        except Error as e:
            return "Error occurred: " + str(e)
    ######################################################################
    ######################################################################

    # GTusername [0 points]
    def GTusername(self):
        gt_ousername = "helfayoumy3"
        return gt_username
    
    # Part a.i Create Tables [2 points]
    def part_ai_1(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_ai_1_sql = """
        CREATE TABLE movies ( 
                          id INTEGER, 
                          title TEXT, 
                          score REAL
        );
        """
        ######################################################################
        
        return self.execute_query(connection, part_ai_1_sql)

    def part_ai_2(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_ai_2_sql = """
        CREATE TABLE movie_cast 
        ( 
            movie_id   INTEGER, 
            cast_id    INTEGER, 
            cast_name  TEXT, 
            birthday   TEXT, 
            popularity REAL 
        ); 
        """
        ######################################################################
        
        return self.execute_query(connection, part_ai_2_sql)
    
    # Part a.ii Import Data [2 points]
    def part_aii_1(self,connection,path):
        ############### CREATE IMPORT CODE BELOW ############################
        with open('data/movies.csv', encoding='utf-8') as csvfile:
            movies = csv.reader(csvfile, delimiter=',')
            for row in movies:
                connection.execute("INSERT INTO movies VALUES (?,?,?)",(row[0],row[1],row[2]))
                connection.commit()
       ######################################################################
        
        sql = "SELECT COUNT(id) FROM movies;"
        cursor = connection.execute(sql)
        return cursor.fetchall()[0][0]
    
    def part_aii_2(self,connection, path):
        ############### CREATE IMPORT CODE BELOW ############################
        with open('data/movie_cast.csv', encoding='utf-8') as csvfile:
            movie_cast = csv.reader(csvfile, delimiter=',')
            for row in movie_cast:
                connection.execute("INSERT INTO movie_cast VALUES (?,?,?,?,?)",(row[0],row[1],row[2], row[3], row[4]))
                connection.commit()
        ######################################################################
        
        sql = "SELECT COUNT(cast_id) FROM movie_cast;"
        cursor = connection.execute(sql)
        return cursor.fetchall()[0][0]

    # Part a.iii Vertical Database Partitioning [5 points]
    def part_aiii(self,connection):
        ############### EDIT CREATE TABLE SQL STATEMENT ###################################
        part_aiii_sql = """
        CREATE TABLE cast_bio 
        ( 
            cast_id    INTEGER, 
            cast_name  TEXT, 
            birthday   TEXT, 
            popularity REAL 
        );
        """
        ######################################################################
        
        self.execute_query(connection, part_aiii_sql)
        
        ############### CREATE IMPORT CODE BELOW ############################
        part_aiii_insert_sql = """
        INSERT INTO cast_bio
        SELECT DISTINCT cast_id, 
                cast_name, 
                birthday, 
                popularity 
        FROM    movie_cast;
        """
        ######################################################################
        
        self.execute_query(connection, part_aiii_insert_sql)
        
        sql = "SELECT COUNT(cast_id) FROM cast_bio;"
        cursor = connection.execute(sql)
        return cursor.fetchall()[0][0]
       

    # Part b Create Indexes [1 points]
    def part_b_1(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_b_1_sql = "CREATE INDEX movie_index ON movies(id);"
        ######################################################################
        return self.execute_query(connection, part_b_1_sql)
    
    def part_b_2(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_b_2_sql = "CREATE INDEX cast_index ON movie_cast(cast_id);"
        ######################################################################
        return self.execute_query(connection, part_b_2_sql)
    
    def part_b_3(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_b_3_sql = "CREATE UNIQUE INDEX cast_bio_index ON cast_bio(cast_id);"
        ######################################################################
        return self.execute_query(connection, part_b_3_sql)
    
    # Part c Calculate a Proportion [3 points]
    def part_c(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_c_sql = """
        SELECT Printf('%.2f', Cast(( Count(id) * 100 ) AS REAL)/(select count(*) from movies)) FROM   movies 
		WHERE  Lower(title) LIKE '%war%' AND score > Cast(50 AS INT)
        """
        ######################################################################
        cursor = connection.execute(part_c_sql)
        return cursor.fetchall()[0][0]

    # Part d Find the Most Prolific Actors [4 points]
    def part_d(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_d_sql = """
        SELECT   cast_name, 
                 Count(movie_id) AS appearance_count 
        FROM     movie_cast 
        WHERE    popularity > 10
        GROUP BY cast_name
        ORDER BY appearance_count DESC, 
                 cast_name ASC limit 5;
        """
        ######################################################################
        cursor = connection.execute(part_d_sql)
        return cursor.fetchall()

    # Part e Find the Highest Scoring Movies With the Least Amount of Cast [4 points]
    def part_e(self,connection):
        ############### EDIT SQL STATEMENT ################################### 
        part_e_sql = """
        SELECT movies.title, 
               Printf('%.2f', movies.score), 
               Count(movie_cast.cast_id) AS cast_count 
        FROM   movies 
               INNER JOIN movie_cast 
                       ON movies.id = movie_cast.movie_id 
        GROUP BY movies.id 
        ORDER BY movies.score DESC, 
                cast_count ASC, 
                movies.title ASC 
        LIMIT  5; 
        """
        ######################################################################
        cursor = connection.execute(part_e_sql)
        return cursor.fetchall()
    
    # Part f Get High Scoring Actors [4 points]
    def part_f(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_f_sql = """
        SELECT     movie_cast.cast_id, 
                   movie_cast.cast_name, 
                   Printf('%.2f', Avg(movies.score)) AS average_score 
        FROM       movies 
        INNER JOIN movie_cast 
        ON         movies.id = movie_cast.movie_id 
        WHERE      movies.score >= Cast(25 AS INT) 
        GROUP BY   movie_cast.cast_id 
        HAVING     Count(movie_cast.movie_id) > 2 
        ORDER BY   Avg(movies.score) DESC, 
                   movie_cast.cast_name ASC
                   LIMIT 10;
        """
        ######################################################################
        cursor = connection.execute(part_f_sql)
        return cursor.fetchall()

    # Part g Creating Views [6 points]
    def part_g(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_g_sql = """
        CREATE VIEW good_collaboration (cast_member_id1, cast_member_id2, movie_count, 
        average_movie_score) 
        AS 
        SELECT 		mc1.cast_id AS cast_member_id1, mc2.cast_id AS cast_member_id2, Count(mc1.movie_id) AS movie_count, 
					Avg(m.score) AS average_movie_score 
		FROM 		movies AS m 
		INNER JOIN 	movie_cast AS mc2 ON m.id = mc2.movie_id 
		INNER JOIN 	movie_cast AS mc1 ON mc1.movie_id = mc2.movie_id 
		WHERE  		mc1.cast_id < mc2.cast_id 
		GROUP  BY 	mc1.cast_id, mc2.cast_id 
		HAVING 		movie_count > 2 AND average_movie_score >= Cast(40 AS INT); 
        """
        ######################################################################
        return self.execute_query(connection, part_g_sql)
    
    def part_gi(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_g_i_sql = """
        SELECT cast_member_id1, 
               cast_bio.cast_name, 
               Printf('%.2f', Avg(average_movie_score)) AS collaboration_score 
        FROM   good_collaboration 
               INNER JOIN cast_bio 
                    ON cast_bio.cast_id = cast_member_id1 
        GROUP BY cast_member_id1 
        ORDER BY collaboration_score DESC, 
                 cast_bio.cast_name ASC 
        LIMIT  5; 
        """
        ######################################################################
        cursor = connection.execute(part_g_i_sql)
        return cursor.fetchall()
    
    # Part h FTS [4 points]
    def part_h(self,connection,path):
        ############### EDIT SQL STATEMENT ###################################
        part_h_sql = """CREATE virtual TABLE movie_overview using fts3 (id integer, overview text);"""
        ######################################################################
        connection.execute(part_h_sql)
        ############### CREATE IMPORT CODE BELOW ############################
        with open('data/movie_overview.csv', encoding='utf-8') as csvfile:
            movie_overview = csv.reader(csvfile, delimiter=',')
            for row in movie_overview:
                connection.execute("INSERT INTO movie_overview VALUES (?,?)",(row[0],row[1]))
                connection.commit()
        ######################################################################
        sql = "SELECT COUNT(id) FROM movie_overview;"
        cursor = connection.execute(sql)
        return cursor.fetchall()[0][0]
        
    def part_hi(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_hi_sql = """
        SELECT Count(overview) 
        FROM   movie_overview 
        WHERE  overview match 'FIGHT';
        """
        ######################################################################
        cursor = connection.execute(part_hi_sql)
        return cursor.fetchall()[0][0]
    
    def part_hii(self,connection):
        ############### EDIT SQL STATEMENT ###################################
        part_hii_sql =  part_hii_sql = """
        SELECT Count(overview) 
        FROM   movie_overview 
        WHERE  overview match 'space NEAR/5 program';
        """
        ######################################################################
        cursor = connection.execute(part_hii_sql)
        return cursor.fetchall()[0][0]


if __name__ == "__main__":
    
    ########################### DO NOT MODIFY THIS SECTION ##########################
    #################################################################################
    if SHOW == True:
        sample = Sample()
        sample.sample()

    print('\033[32m' + "Q2 Output: " + '\033[m')
    db = HW2_sql()
    try:
        conn = db.create_connection("Q2")
    except:
        print("Database Creation Error")

    try:
        conn.execute("DROP TABLE IF EXISTS movies;")
        conn.execute("DROP TABLE IF EXISTS movie_cast;")
        conn.execute("DROP TABLE IF EXISTS cast_bio;")
        conn.execute("DROP VIEW IF EXISTS good_collaboration;")
        conn.execute("DROP TABLE IF EXISTS movie_overview;")
    except:
        print("Error in Table Drops")

    try:
        print('\033[32m' + "part ai 1: " + '\033[m' + str(db.part_ai_1(conn)))
        print('\033[32m' + "part ai 2: " + '\033[m' + str(db.part_ai_2(conn)))
    except:
         print("Error in Part a.i")

    try:
        print('\033[32m' + "Row count for Movies Table: " + '\033[m' + str(db.part_aii_1(conn,"data/movies.csv")))
        print('\033[32m' + "Row count for Movie Cast Table: " + '\033[m' + str(db.part_aii_2(conn,"data/movie_cast.csv")))
    except:
        print("Error in part a.ii")

    try:
        print('\033[32m' + "Row count for Cast Bio Table: " + '\033[m' + str(db.part_aiii(conn)))
    except:
        print("Error in part a.iii")

    try:
        print('\033[32m' + "part b 1: " + '\033[m' + db.part_b_1(conn))
        print('\033[32m' + "part b 2: " + '\033[m' + db.part_b_2(conn))
        print('\033[32m' + "part b 3: " + '\033[m' + db.part_b_3(conn))
    except:
        print("Error in part b")

    try:
        print('\033[32m' + "part c: " + '\033[m' + str(db.part_c(conn)))
    except:
        print("Error in part c")

    try:
        print('\033[32m' + "part d: " + '\033[m')
        for line in db.part_d(conn):
            print(line[0],line[1])
    except:
        print("Error in part d")

    try:
        print('\033[32m' + "part e: " + '\033[m')
        for line in db.part_e(conn):
            print(line[0],line[1],line[2])
    except:
        print("Error in part e")

    try:
        print('\033[32m' + "part f: " + '\033[m')
        for line in db.part_f(conn):
            print(line[0],line[1],line[2])
    except:
        print("Error in part f")
    
    try:
        print('\033[32m' + "part g: " + '\033[m' + str(db.part_g(conn)))
        print('\033[32m' + "part g.i: " + '\033[m')
        for line in db.part_gi(conn):
            print(line[0],line[1],line[2])
    except:
        print("Error in part g")

    try:   
        print('\033[32m' + "part h.i: " + '\033[m'+ str(db.part_h(conn,"data/movie_overview.csv")))
        print('\033[32m' + "Count h.ii: " + '\033[m' + str(db.part_hi(conn)))
        print('\033[32m' + "Count h.iii: " + '\033[m' + str(db.part_hii(conn)))
    except:
        print("Error in part h")

    conn.close()
    #################################################################################
    #################################################################################