<?php
/*
迁移 sentence库
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');

# 更新数据表

$src_db=_SQLITE_DB_SENTENCE_;#源数据库
$src_table=_SQLITE_TABLE_SENTENCE_;#源表名
$dest_db=_PG_DB_SENTENCE_;#目标数据库
$dest_table=_PG_TABLE_SENTENCE_;#目标表名


echo "migarating sentence".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 table".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 table".PHP_EOL);

// 开始一个事务，关闭自动提交


$queryInsert = "INSERT INTO ".$dest_table." (
                                      id,
	                                  uid, 
									  parent_uid,
									  block_uid , 
									  channel_uid,
									  book_id, 
									  paragraph,
									  word_start,
									  word_end,
									  author,
									  editor_uid,
									  content,
									  language,
									  version,
									  status,
									  strlen,
									  create_time,
									  modify_time,
									  created_at,
									  updated_at) VALUES (? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? ,to_timestamp(?),to_timestamp(?))";
$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
	$uuid = $srcData["id"];
	#查询目标表中是否有相同数据
	$queryExsit = "SELECT id  FROM ".$dest_table." WHERE uid = ? ";
	$getExist = $PDO_DEST->prepare($queryExsit);
	$getExist->execute(array($uuid));
	$exist = $getExist->fetch(PDO::FETCH_ASSOC);
	if(!$exist){
		if(strlen($srcData["editor"])>36){
			fwrite(STDERR,"error: {$uuid} editor {$srcData["editor"]} too long".PHP_EOL);
			continue;
		}
        if(empty($srcData["language"]) ){
            $srcData["language"]="zh-hans";
        }
        if(empty($srcData["strlen"]) ){
            $srcData["strlen"]=mb_strlen($srcData["strlen"],"UTF-8");
        }
        if(empty($srcData["status"]) ){
            $srcData["status"]=10;
        }
        if(empty($srcData["ver"]) ){
            $srcData["ver"]=1;
        }
        if(empty($srcData["book"]) || !is_numeric($srcData["book"])){
            fwrite(STDERR,"book is error id=".$uuid.PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        if(empty($srcData["paragraph"]) || !is_numeric($srcData["paragraph"])){
            fwrite(STDERR,"paragraph is error id=".$uuid.PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        if(empty($srcData["begin"]) || !is_numeric($srcData["begin"]) ){
            fwrite(STDERR,"begin is error id=".$uuid.PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }
        if(empty($srcData["end"]) || !is_numeric($srcData["end"]) ){
            fwrite(STDERR,"end is error id=".$uuid.PHP_EOL);
            fputcsv($fpError,$srcData);
            continue;
        }

        if(empty($srcData["create_time"]) || $srcData["create_time"]<1532590551000){
            $srcData["create_time"]=1532590551000;
        }
        if(empty($srcData["modify_time"]) || $srcData["modify_time"]<1532590551000){
            $srcData["modify_time"]=1532590551000;
        }
		$commitData[] = array(
            $snowflake->id(),
			$uuid,
			$srcData["parent"],
			$srcData["block_id"],
			$srcData["channal"],
			$srcData["book"],
			$srcData["paragraph"],
			$srcData["begin"],
			$srcData["end"],
			$srcData["author"],
			$srcData["editor"],
			$srcData["text"],
			$srcData["language"],
			$srcData["ver"],
			$srcData["status"],
			$srcData["strlen"],
			$srcData["create_time"],
			$srcData["modify_time"],
			$srcData["create_time"]/1000,
			$srcData["modify_time"]/1000
		);
		$count++;
		$allInsertCount++;
		if($count === 10000){
			$PDO_DEST->beginTransaction();
			$stmtDEST = $PDO_DEST->prepare($queryInsert);
			foreach ($commitData as $key => $value) {
				# code...
                try{
                    $stmtDEST->execute($value);	
                }catch(PDOException $e){
                    fwrite(STDERR,$e->getMessage().PHP_EOL);
                    fwrite(STDERR,implode(',',$value).PHP_EOL);
                    continue;
                }
			}
			// 提交更改
			$PDO_DEST->commit();
			echo "finished $count".PHP_EOL;
            $commitData = [];
			$count = 0;
		}
	}
	if($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) {
		# code...
		$stmtDEST->execute($value);
	}
	// 提交更改
	$PDO_DEST->commit();
	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);

fclose($fpError);