<?php
/*
从旧数据表中提取数据插入到新的表
插入时用uuid判断是否曾经插入
曾经插入就不插入了
*/
require_once __DIR__."/../../../public/app/config.php";
require_once __DIR__."/../../../public/app/public/snowflakeid.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;
});
$start = time();
# 雪花id
$snowflake = new SnowFlakeId();

$fpError = fopen(__DIR__.'/log/'.basename($_SERVER['PHP_SELF'],'.php').".err.data.csv",'w');

# 更新索引表
$src_db=_SQLITE_DB_WBW_;#源数据库
$src_table=_SQLITE_TABLE_DICT_WBW_;#源表名
$dest_db=_PG_DB_WBW_;#目标数据库
$dest_table=_PG_TABLE_DICT_WBW_;#目标表名

echo "migarate user dict".PHP_EOL;
#打开源数据库
$PDO_SRC = new PDO($src_db,_DB_USERNAME_,_DB_PASSWORD_,array(
                                PDO::ATTR_PERSISTENT=>true,
                                PDO::SQLITE_ATTR_OPEN_FLAGS => PDO::SQLITE_OPEN_READONLY
                                ));
$PDO_SRC->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
echo "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);
echo "open dest".PHP_EOL;

#删除目标数据表中全部数据
fwrite(STDOUT,"delete dest".PHP_EOL);

$query = "delete from $dest_table where true;";
$stmtDest = $PDO_DEST->prepare($query);
$stmtDest->execute();

$queryInsert = "INSERT INTO ".$dest_table." 
								(
                                    id,
									word , 
									type, 
									grammar,
									parent,
									mean,
									note,
									factors,
									factormean,
									status,
									source,
									language,
									confidence,
									creator_id,
									ref_counter,
									create_time,
									created_at,
									updated_at
								) 
									VALUES (? , ? , ? , ? ,? ,? ,? ,? ,? ,? ,? , ?,?,?,?,?,to_timestamp(?),to_timestamp(?))";

echo "read from orginal".PHP_EOL;
$commitData = [];
$allInsertCount = 0;
$allSrcCount = 0;
$count = 0;

#从源数据表中读取
$query = "SELECT *  FROM ".$src_table;
$stmtSrc = $PDO_SRC->prepare($query);
$stmtSrc->execute();
while($srcData = $stmtSrc->fetch(PDO::FETCH_ASSOC)){
	$allSrcCount++;
	#插入目标表
        if(empty($srcData["pali"]) ){
            fwrite(STDERR,"pali is null id=".$srcData["id"].PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        if(empty($srcData["creator"]) ){
            fwrite(STDERR,"creator is null id=".$srcData["id"].PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        $commitData[] = array(
                $snowflake->id(),
                $srcData["pali"],
                $srcData["type"],
                $srcData["gramma"],
                $srcData["parent"],
                $srcData["mean"],
                $srcData["note"],
                $srcData["factors"],
                $srcData["factormean"],
                $srcData["status"],
                "_SYS_USER_WBW_",
                $srcData["language"],
                $srcData["confidence"],
                $srcData["creator"],
                $srcData["ref_counter"],
                $srcData["time"],
                $srcData["time"],
                $srcData["time"]
            );	
			$count++;	
			$allInsertCount++;
		

		if($count ==10000){
			#10000行插入一次
			$PDO_DEST->beginTransaction();
			$stmtDEST = $PDO_DEST->prepare($queryInsert);
			foreach ($commitData as $key => $value) {
                try{
                    $stmtDEST->execute($value);	
                }catch(PDOException $e){
                    fwrite(STDERR,$e->getMessage().PHP_EOL);
                    fwrite(STDERR,implode(',',$value).PHP_EOL);
                    exit;
                }
			}
			// 提交更改
			$PDO_DEST->commit();
			$commitData = [];
			echo "finished $count".PHP_EOL;
			$count=0;
		}	
		if($allSrcCount % 10000 ==0){
            echo "find from src table $allSrcCount / $allInsertCount is new.".PHP_EOL;
        }
}
if($count>0){
	#最后的没有到10000的数据插入
	$PDO_DEST->beginTransaction();
	$stmtDEST = $PDO_DEST->prepare($queryInsert);
	foreach ($commitData as $key => $value) {
		$stmtDEST->execute($value);

	}
	// 提交更改
	$PDO_DEST->commit();
	$commitData = [];
	echo "finished $count".PHP_EOL;
}

echo "insert done $allInsertCount in $allSrcCount ".PHP_EOL;

# 更新索引表

$src_table=_SQLITE_TABLE_DICT_WBW_INDEX_;#源表名
$src_word_table=_SQLITE_TABLE_DICT_WBW_;#源word表名

echo "migarating usr dict index ".PHP_EOL;


// 开始一个事务，关闭自动提交
$commitData = [];
$allInsertCount = 0;
$allSrcCount = 0;
$count = 0;
#从源数据表中读取
$query = "SELECT *  FROM ".$src_table;
$stmtSrc = $PDO_SRC->prepare($query);
$stmtSrc->execute();

while($srcData = $stmtSrc->fetch(PDO::FETCH_ASSOC)){
	$allSrcCount++;
	#插入目标表
	$wordIndex = $srcData["word_index"];
	#查询目标表中的数据
	$queryExsit = "SELECT *  FROM ".$src_word_table." WHERE id = ? ";
	$getWord = $PDO_SRC->prepare($queryExsit);
	$getWord->execute(array($wordIndex));
	$exist = $getWord->fetch(PDO::FETCH_ASSOC);
	if($exist){
        if(empty($srcData["user_id"]) ){
            fwrite(STDERR,"index user_id is null id=".$srcData["id"].PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        if(empty($exist["pali"]) ){
            fwrite(STDERR,"pali is null id=".$srcData["id"].PHP_EOL);
            continue;
        }
        if(empty($exist["creator"]) ){
            fwrite(STDERR,"creator is null id=".$srcData["id"].PHP_EOL);
            continue;
        }
		$commitData[] = array(
            $snowflake->id(),
			$exist["pali"],
			$exist["type"],
			$exist["gramma"],
			$exist["parent"],
			$exist["mean"],
			$exist["note"],
			$exist["factors"],
			$exist["factormean"],
			(int)$exist["status"],
			"_USER_WBW_",
			$exist["language"],
			$exist["confidence"],
		    $srcData["user_id"],
			$exist["ref_counter"],
			$exist["time"],
			$exist["time"],
			$exist["time"]
		);
		$count++;
		$allInsertCount++;
		if($count === 10000){
			$PDO_DEST->beginTransaction();
			$stmtDEST = $PDO_DEST->prepare($queryInsert);
			foreach ($commitData as $key => $value) {
				# code...
				$stmtDEST->execute($value);
			}
			// 提交更改
			$PDO_DEST->commit();
            $commitData = [];
			echo "finished $count".PHP_EOL;
			$count = 0;
		}
	}else{
		fwrite(STDERR,"error: no word index - $wordIndex".PHP_EOL);
	}
	if($allSrcCount % 10000 ==0){
		fwrite(STDOUT,"find from src table $allSrcCount / $allInsertCount is new.".PHP_EOL) ;
	}
}
if($count>0){
	#最后的没有到10000的数据插入
	$PDO_DEST->beginTransaction();
	$stmtDEST = $PDO_DEST->prepare($queryInsert);
	foreach ($commitData as $key => $value) {
		# code...
		$stmtDEST->execute($value);
	}
	// 提交更改
	$PDO_DEST->commit();
    $commitData = [];
	fwrite(STDOUT,"finished $count".PHP_EOL);
}

fwrite(STDOUT,"insert done $allInsertCount in $allSrcCount ".PHP_EOL);

fwrite(STDOUT, "all done in ".(time()-$start)."s".PHP_EOL);