Proyectos de Subversion Iphone Microlearning - Nuevo Interface

//
//  UserNotificationDao.swift
//  twogetskills
//
//  Created by Efrain Yanez Recanatini on 7/31/22.
//


import UIKit
import SQLite3

class UserNotificationDao {
    private let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)
    private var database = Database.sharedInstance
    
    static let sharedInstance: UserNotificationDao = {
           let instance = UserNotificationDao()
           
           // setup code
           return instance
    }()

    func selectById(id : Int)-> UserNotificationModel {
        let db = database.open()
        var model = UserNotificationModel ()
        
        var query = "SELECT "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_ID + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_USER_UUID + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_TITLE + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_DESCRIPTION + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_URL + " , "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_VIEWED + " , "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_ADDED_ON
        query = query + " FROM " + Constants.TABLE_USER_NOTIFICATION
        query = query + " WHERE " + Constants.TABLE_USER_NOTIFICATION_FIELD_ID + " = '\(id)'  LIMIT 1;"
 
        var statement : OpaquePointer? = nil
        
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) == SQLITE_ROW) {
                

                model.id = Int(sqlite3_column_int(statement, 0))
                
                model.userUuid = String(describing: String(cString: sqlite3_column_text(statement, 1)))
                
                model.title = String(describing: String(cString: sqlite3_column_text(statement, 2)))
                
                model.description = String(describing: String(cString: sqlite3_column_text(statement, 3)))
                
                model.description = String(describing: String(cString: sqlite3_column_text(statement, 4)))
                
                model.url = String(describing: String(cString: sqlite3_column_text(statement, 5)))
                
                model.viewed = Int(sqlite3_column_int(statement, 6))
                
                model.addedOn = String(describing: String(cString: sqlite3_column_text(statement, 7)))
                
               //print("\nSuccessfully get record")
                
            }
        } else {
            database.printError()
        }
        sqlite3_finalize(statement)
        return model
    }


    func selectAll()-> [UserNotificationModel] {
        let db = database.open()
        var records = [UserNotificationModel]()
        
        var query = "SELECT "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_ID + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_USER_UUID + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_TITLE + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_DESCRIPTION + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_URL + " , "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_VIEWED + " , "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_ADDED_ON
        query = query + " FROM " + Constants.TABLE_USER_NOTIFICATION
        query = query + " ORDER BY  " + Constants.TABLE_USER_NOTIFICATION_FIELD_ADDED_ON + " DESC ;"
        
        var statement : OpaquePointer? = nil
        
        
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            while (sqlite3_step(statement) == SQLITE_ROW) {
                
                var  model = UserNotificationModel()
                model.id = Int(sqlite3_column_int(statement, 0))
                
                model.userUuid = String(describing: String(cString: sqlite3_column_text(statement, 1)))
                
                model.title = String(describing: String(cString: sqlite3_column_text(statement, 2)))
                
                model.description = String(describing: String(cString: sqlite3_column_text(statement, 3)))
                
                model.description = String(describing: String(cString: sqlite3_column_text(statement, 4)))
                
                model.url = String(describing: String(cString: sqlite3_column_text(statement, 5)))
                
                model.viewed = Int(sqlite3_column_int(statement, 6))
                
                model.addedOn = String(describing: String(cString: sqlite3_column_text(statement, 7)))
               
                
                records.append(model)
                
            }
        } else {
            database.printError()
        }
        sqlite3_finalize(statement)
        return records
    }

    
    
    func getCount() -> Int {
        let db = database.open()
        let query = "SELECT COUNT(*) AS total FROM " + Constants.TABLE_USER_NOTIFICATION;

        var statement : OpaquePointer? = nil
        var count = 0;
        
        
        if (sqlite3_prepare(db, query, -1, &statement, nil) == SQLITE_OK) {
            if(sqlite3_step(statement) == SQLITE_ROW){
                count = Int(sqlite3_column_int(statement, 0))
                //print("\(count)")
            }
        } else {
            count = -1
            database.printError()
        }
        sqlite3_finalize(statement)
        return count
    }
    
    func insert(userNotification : UserNotificationModel) -> Int {
        let db = database.open()
        var result : Int = 0
        var query = "INSERT INTO " + Constants.TABLE_USER_NOTIFICATION + " ( "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_USER_UUID + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_TITLE + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_DESCRIPTION + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_URL + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_VIEWED + ", "
        query = query + Constants.TABLE_USER_NOTIFICATION_FIELD_ADDED_ON
        query = query + " ) VALUES (?, ?, ?, ?, ?, ?);"
        var statement : OpaquePointer?
        
           
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
                   
            sqlite3_bind_text(statement, 1, userNotification.userUuid, -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 2, userNotification.title, -1 , SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 3, userNotification.description , -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 4, userNotification.url , -1, SQLITE_TRANSIENT)
            sqlite3_bind_int(statement, 5, Int32(userNotification.viewed))
            sqlite3_bind_text(statement, 6, userNotification.addedOn , -1, SQLITE_TRANSIENT)
   
            if (sqlite3_step(statement) == SQLITE_DONE) {
                result = Int(sqlite3_last_insert_rowid(db))
            } else {
                 print("No se pudo insertar el registro en la tabla: \(Constants.TABLE_USER_NOTIFICATION)")
                
                database.printError()
             
            }
        } else {
            print("Fallo la preparación del insertar un registro en la tabla: \(Constants.TABLE_USER_NOTIFICATION)")
            
            database.printError()
        }
       
        sqlite3_finalize(statement)
        
        return result
    }

    func markViewed(id : Int) {
        let db = database.open()
        var query = "UPDATE " + Constants.TABLE_USER_NOTIFICATION
        query = query + " WHERE " + Constants.TABLE_USER_NOTIFICATION_FIELD_ID + " = '\(id)';"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo actualizar un registro en la tabla: \(Constants.TABLE_USER_NOTIFICATION) ")
                
                database.printError()
            }
        } else {
            print("Fallo la preparación de la actualización de un registro en la tabla \(Constants.TABLE_USER_NOTIFICATION) ")
            
            database.printError()
        }
        sqlite3_finalize(statement)
    }
    
    func markViewedAllPending() {
        let db = database.open()
        var query = "UPDATE " + Constants.TABLE_USER_NOTIFICATION
        query = query + " WHERE " + Constants.TABLE_USER_NOTIFICATION_FIELD_VIEWED + " = 0;"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo actualizar un registro en la tabla: \(Constants.TABLE_USER_NOTIFICATION) ")
                
                database.printError()
            }
        } else {
            print("Fallo la preparación de la actualización de un registro en la tabla \(Constants.TABLE_USER_NOTIFICATION) ")
            
            database.printError()
        }
        sqlite3_finalize(statement)
    }

    func remove(id: Int) {
        let db = database.open()
        let query = "DELETE FROM " + Constants.TABLE_USER_NOTIFICATION
            + " WHERE " + Constants.TABLE_USER_NOTIFICATION_FIELD_ID + " = '\(id)' ;"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo borrar el registro con el id: \(id) en la tabla: \(Constants.TABLE_USER_NOTIFICATION)")
                
                database.printError()
            }
        } else {
            print("Fallo la preparación del borrado del registro con el id: \(id) en la tabla: \(Constants.TABLE_USER_NOTIFICATION)" )
            
            database.printError()
        }
        sqlite3_finalize(statement)
    }

    func removeAll() {
        let db = database.open()
        let query = "DELETE FROM " + Constants.TABLE_USER_NOTIFICATION + ";"
        var statement : OpaquePointer? = nil
        if sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK{
            if sqlite3_step(statement) != SQLITE_DONE {
                print("Fallo el borrado de todos los registros en la tabla: \(Constants.TABLE_USER_NOTIFICATION)")
                
                database.printError()
            }
        } else {
            print("No se pudo preparar el borrado de todos los registros en la tabla: \(Constants.TABLE_USER_NOTIFICATION) ")
            
            database.printError()
        }
        sqlite3_finalize(statement)
    }
    
    func removeAllUserUuidNotEqual(userUuid : String)
    {
        let db = database.open()
        let query = "DELETE FROM " +  Constants.TABLE_USER_NOTIFICATION +
            " WHERE " + Constants.TABLE_USER_NOTIFICATION_FIELD_USER_UUID + " <> '\(userUuid)' ;"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if sqlite3_step(statement) != SQLITE_DONE {
                print("No se pudo borrar todos los registros en la tabla: \(Constants.TABLE_USER_NOTIFICATION)" +
                " de los usuarios diferentes de : \(userUuid)" )
                
                database.printError()
            }
        } else {
            print("Fallo la preparación de borrar todos los registros en la tabla: \(Constants.TABLE_USER_NOTIFICATION) de los usuarios diferentes de : \(userUuid) ")
            
            database.printError()
        }
        sqlite3_finalize(statement)
    }
    
}