<?php
require_once __DIR__."/../../../public/app/config.php";

set_exception_handler(function($e){
	fwrite(STDERR,"error-msg:".$e->getMessage().PHP_EOL);
	fwrite(STDERR,"error-file:".$e->getFile().PHP_EOL);
	fwrite(STDERR,"error-line:".$e->getLine().PHP_EOL);
	exit;
});

$src_db = _SQLITE_DB_PALI_SENTENCE_SIM_;#源数据库
$src_table = _SQLITE_TABLE_SENT_SIM_;#源表名

$dest_db = _PG_DB_PALI_SENTENCE_SIM_;#目标数据库
$dest_table = _PG_TABLE_SENT_SIM_;#目标表名

fwrite(STDOUT, "migarate sent_sim".PHP_EOL);
#打开源数据库
$PDO_SRC = new PDO($src_db,_DB_USERNAME_,_DB_PASSWORD_,array(PDO::ATTR_PERSISTENT=>true));
$PDO_SRC->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
fwrite(STDOUT, "open src".PHP_EOL);

#打开目标数据库
$PDO_DEST = new PDO($dest_db,_DB_USERNAME_,_DB_PASSWORD_,array(PDO::ATTR_PERSISTENT=>true));
$PDO_DEST->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
fwrite(STDOUT, "open dest".PHP_EOL);

#删除目标表中所有数据
fwrite(STDOUT,"deleting date".PHP_EOL) ;

$query = "DELETE FROM ".$dest_table;
$stmt = $PDO_DEST->prepare($query);
$stmt->execute();

fwrite(STDOUT,"deleted date".PHP_EOL) ;

// 开始一个事务，关闭自动提交
$count = 0;
fwrite(STDOUT, "begin Transaction".PHP_EOL);

$PDO_DEST->beginTransaction();

$query = "INSERT INTO ".$dest_table." (sent1, sent2 , sim ) VALUES ( ? , ? , ? )";
try{
	$stmtDEST = $PDO_DEST->prepare($query);
}catch(PDOException $e){
	fwrite(STDERR,"error:".$e->getMessage());
	exit;
}

#从源数据表中读取
$query = "SELECT *  FROM ".$src_table;
try{
	$stmtSrc = $PDO_SRC->prepare($query);
	$stmtSrc->execute();
}catch(PDOException $e){
	fwrite(STDERR,"error:".$e->getMessage().PHP_EOL);
	fwrite(STDERR,"error-line:".$e->getLine().PHP_EOL);
	exit;
}

while($srcData = $stmtSrc->fetch(PDO::FETCH_ASSOC)){
	#插入目标表
	$data = array(
					$srcData["sent1"],
					$srcData["sent2"],
					$srcData["sim"]
				);
	try{
		$stmtDEST->execute($data);		
	}catch(PDOException $e){
		fwrite(STDERR,"error:".$e->getMessage().PHP_EOL);
		fwrite(STDERR,"error-data:".implode(',',$data).PHP_EOL);
		fwrite(STDERR,"error-line:".$e->getLine().PHP_EOL);
		exit;
	}
		
	$count++;
	if($count%10000==0){
		fwrite(STDOUT, "finished $count".PHP_EOL);
	}
}

// 提交更改
$PDO_DEST->commit();
fwrite(STDOUT, "done insert {$count} rows".PHP_EOL);