<?php
/*
迁移  article 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');

#user info
$user_db=_FILE_DB_USERINFO_;#user数据库
$user_table=_TABLE_USER_INFO_;#user表名

# 
$src_db = _SQLITE_DB_FILEINDEX_;#源数据库
$src_table = _SQLITE_TABLE_FILEINDEX_;#源表名

$dest_db = _PG_DB_FILEINDEX_;#目标数据库
$dest_table = _PG_TABLE_FILEINDEX_;#目标表名

fwrite(STDOUT,"migarate file index".PHP_EOL);
#打开user数据库
$PDO_USER = new PDO($user_db,_DB_USERNAME_,_DB_PASSWORD_,array(PDO::ATTR_PERSISTENT=>true));
$PDO_USER->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
fwrite(STDOUT,"open user table".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);

$queryInsert = "INSERT INTO ".$dest_table." 
								(
                                    id,
									uid,
									parent_id,
									user_id,
									book,
									paragraph,
									channal,
									file_name,
									title,
									tag,
									status,
									file_size,
									share,
									doc_info,
									doc_block,
									create_time,
									modify_time,
									accese_time,
									accesed_at,
									updated_at,
									created_at) 
									VALUES (? , ? , ? , ? , ?, ? ,? , ? , ? , ?, ? ,? , ? , ? , ?, ? ,? , ? , ? , ?, ? )";
$stmtDEST = $PDO_DEST->prepare($queryInsert);

$commitData = [];
$allInsertCount = 0;
$allSrcCount = 0;
$count = 0;

#从user数据表中读取
$query = "SELECT id  FROM ".$user_table." WHERE id = ? ";
$stmtUser = $PDO_USER->prepare($query);

#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++;

    $queryExist = "SELECT *  FROM ".$dest_table." where uid=? ";
    $stmtExist = $PDO_DEST->prepare($queryExist);
    $stmtExist->execute([$srcData["id"]]);
    $isExist = $stmtExist->fetch(PDO::FETCH_ASSOC);
	if($isExist){
        continue;
    }

	$stmtUser->execute(array($srcData["user_id"]));
	$userId = $stmtUser->fetch(PDO::FETCH_ASSOC);
	if(!$userId){
		fwrite(STDERR,time()."error,no user id {$srcData["user_id"]}".PHP_EOL);
		continue;
	}

    if(empty($srcData["doc_block"]) ){
		fwrite(STDERR,time().",error, doc_block is empty {$srcData["id"]}".PHP_EOL);
        fputcsv($fpError,$srcData);
		continue;
	}
    if(empty($srcData["book"]) ){
        $srcData["book"] = 0;
		fwrite(STDERR,time().",error, book is empty {$srcData["id"]}".PHP_EOL);
        fputcsv($fpError,array('book is empty',$srcData["id"]));
	}
    if(empty($srcData["paragraph"]) ){
        $srcData["paragraph"] = 0;
		fwrite(STDERR,time().",error, paragraph is empty {$srcData["id"]}".PHP_EOL);
        fputcsv($fpError,array('paragraph is empty',$srcData["id"]));
	}
    if(empty($srcData["modify_time"])){
        $srcData["modify_time"] = $srcData["create_time"];
    }

    if($srcData["create_time"] < 15987088320){
        $srcData["create_time"] *= 1000;
    }
    if($srcData["modify_time"] < 15987088320){
        $srcData["modify_time"] *= 1000;
    }
	//查询是否已经插入
	$queryExsit = "SELECT id  FROM ".$dest_table." WHERE uid = ? ";
	$getExist = $PDO_DEST->prepare($queryExsit);
	$getExist->execute(array($srcData["id"]));
	$exist = $getExist->fetch(PDO::FETCH_ASSOC);
	if($exist){
		continue;
	}
	#插入目标表
	$created_at = date("Y-m-d H:i:s.",$srcData["create_time"]/1000).($srcData["create_time"]%1000)." UTC";
	$updated_at = date("Y-m-d H:i:s.",$srcData["modify_time"]/1000).($srcData["modify_time"]%1000)." UTC";
	$commitData = array(
            $snowflake->id(),
			$srcData["id"],
			$srcData["parent_id"],
			$srcData["user_id"],
			$srcData["book"],
			$srcData["paragraph"],
			$srcData["channal"],
			$srcData["file_name"],
			$srcData["title"],
			$srcData["tag"],
			$srcData["status"],
			$srcData["file_size"],
			$srcData["share"],
			$srcData["doc_info"],
			$srcData["doc_block"],
			$srcData["create_time"],
			$srcData["modify_time"],
			$srcData["accese_time"],
			$created_at,
			$updated_at,
            $updated_at
		);
	$stmtDEST->execute($commitData);

	$count++;	
	$allInsertCount++;


	if($count ==10000){
		#10000行输出log 一次
		echo "finished $count".PHP_EOL;
		$count=0;
	}	
}

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

fclose($fpError);