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//
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// SyncDao.swift
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// twogetskills
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//
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// Created by Efrain Yanez Recanatini on 2/21/22.
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//
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import UIKit
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import SQLite3
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class SyncDao {
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private let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)
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private var db : OpaquePointer?
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static let sharedInstance: SyncDao = {
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let instance = SyncDao()
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// setup code
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return instance
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}()
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init() {
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self.db = Database.sharedInstance.open()
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}
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func insert(record : SyncModel) -> Int {
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let query = "INSERT INTO " + Constants.TABLE_SYNC + " ( " + Constants.TABLE_SYNC_FIELD_TYPE + ", " + Constants.TABLE_SYNC_FIELD_DATA + " ) VALUES (?, ?);"
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var statement : OpaquePointer?
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var result = 0;
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if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
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sqlite3_bind_int(statement, 1, Int32(record.type))
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sqlite3_bind_text(statement, 2, record.data , -1, SQLITE_TRANSIENT)
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if (sqlite3_step(statement) == SQLITE_DONE) {
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result = Int(sqlite3_last_insert_rowid(db))
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} else {
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print("No se pudo insertar el registro ( type: \(record.type) data: \(record.data) en la tabla: \(Constants.TABLE_SYNC)")
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}
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} else {
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print("Fallo la preparación del insert en la tabla: \(Constants.TABLE_SYNC)")
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}
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sqlite3_finalize(statement)
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return result
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}
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func selectOneByType(type: Int) -> SyncModel {
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var record = SyncModel()
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let query = "SELECT "
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+ Constants.TABLE_SYNC_FIELD_ID + " , "
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+ Constants.TABLE_SYNC_FIELD_TYPE + " , "
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+ Constants.TABLE_SYNC_FIELD_DATA
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+ " FROM " + Constants.TABLE_SYNC + " WHERE type = '\(type)' LIMIT 1; "
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var statement : OpaquePointer? = nil
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if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
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if (sqlite3_step(statement) == SQLITE_ROW) {
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record.id = Int(sqlite3_column_int(statement, 0))
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record.type = Int(sqlite3_column_int(statement, 1))
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record.data = String(describing: String(cString: sqlite3_column_text(statement, 2)))
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}
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}
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sqlite3_finalize(statement)
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return record
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}
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func selectBatch()-> [SyncModel] {
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var records = [SyncModel]()
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let query = "SELECT "
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+ Constants.TABLE_SYNC_FIELD_ID + " , "
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+ Constants.TABLE_SYNC_FIELD_TYPE + " , "
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+ Constants.TABLE_SYNC_FIELD_DATA
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+ " FROM " + Constants.TABLE_SYNC + " LIMIT 5; "
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var statement : OpaquePointer? = nil
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if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
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if (sqlite3_step(statement) == SQLITE_ROW) {
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var model = SyncModel()
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model.id = Int(sqlite3_column_int(statement, 0))
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model.type = Int(sqlite3_column_int(statement, 1))
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model.data = String(describing: String(cString: sqlite3_column_text(statement, 2)))
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records.append(model)
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}
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}
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sqlite3_finalize(statement)
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return records
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}
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func remove(id : Int) {
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let query = "DELETE FROM " + Constants.TABLE_SYNC + " WHERE " + Constants.TABLE_SYNC_FIELD_ID + " = " + "\(id) ;"
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var statement : OpaquePointer? = nil
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if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
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if (sqlite3_step(statement) != SQLITE_DONE) {
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print("No se pudo borrar el ID: \(id) de la tabla: \(Constants.TABLE_SYNC)")
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}
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}
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sqlite3_finalize(statement)
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}
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}
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