/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include <function.h>
#include <gtest/gtest.h>
#include <tglobal.h>
#include <iostream>
#pragma GCC diagnostic ignored "-Wwrite-strings"

#pragma GCC diagnostic ignored "-Wunused-function"
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wsign-compare"
#include "os.h"

#include "astGenerator.h"
#include "parserInt.h"
#include "taos.h"
#include "tdef.h"
#include "tvariant.h"
#include "planner.h"
#include "../../planner/inc/plannerInt.h"

namespace {
void setSchema(SSchema* p, int32_t type, int32_t bytes, const char* name, int32_t colId) {
  p->colId = colId;
  p->bytes = bytes;
  p->type = type;
  strcpy(p->name, name);
}

void setTableMetaInfo(SQueryStmtInfo* pQueryInfo, SCatalogReq *req) {
  pQueryInfo->numOfTables = 1;

  pQueryInfo->pTableMetaInfo = (STableMetaInfo**)calloc(1, POINTER_BYTES);
  STableMetaInfo* pTableMetaInfo = (STableMetaInfo*)calloc(1, sizeof(STableMetaInfo));
  pQueryInfo->pTableMetaInfo[0] = pTableMetaInfo;

  SName* name = (SName*)taosArrayGet(req->pTableName, 0);

  memcpy(&pTableMetaInfo->name, taosArrayGet(req->pTableName, 0), sizeof(SName));
  pTableMetaInfo->pTableMeta = (STableMeta*)calloc(1, sizeof(STableMeta) + 4 * sizeof(SSchema));
  strcpy(pTableMetaInfo->aliasName, name->tname);
  STableMeta* pTableMeta = pTableMetaInfo->pTableMeta;
  pTableMeta->tableType = TSDB_NORMAL_TABLE;
  pTableMeta->tableInfo.numOfColumns = 4;
  pTableMeta->tableInfo.rowSize = 28;
  pTableMeta->uid = 110;

  pTableMetaInfo->tagColList = (SArray*) taosArrayInit(4, POINTER_BYTES);

  SSchema* pSchema = pTableMetaInfo->pTableMeta->schema;
  setSchema(&pSchema[0], TSDB_DATA_TYPE_TIMESTAMP, 8, "ts", 0);
  setSchema(&pSchema[1], TSDB_DATA_TYPE_INT, 4, "a", 1);
  setSchema(&pSchema[2], TSDB_DATA_TYPE_DOUBLE, 8, "b", 2);
  setSchema(&pSchema[3], TSDB_DATA_TYPE_DOUBLE, 8, "col", 3);
}

void generateLogicplan(const char* sql) {
  SSqlInfo info1 = doGenerateAST(sql);
  ASSERT_EQ(info1.valid, true);

  char    msg[128] = {0};
  SMsgBuf buf;
  buf.len = 128;
  buf.buf = msg;

  SSqlNode* pNode = (SSqlNode*) taosArrayGetP(((SArray*)info1.sub.node), 0);
  int32_t code = evaluateSqlNode(pNode, TSDB_TIME_PRECISION_NANO, &buf);
  ASSERT_EQ(code, 0);

  SCatalogReq req = {0};
  int32_t  ret = qParserExtractRequestedMetaInfo(&info1, &req, msg, 128);
  ASSERT_EQ(ret, 0);
  ASSERT_EQ(taosArrayGetSize(req.pTableName), 1);

  SQueryStmtInfo* pQueryInfo = createQueryInfo();
  setTableMetaInfo(pQueryInfo, &req);

  SSqlNode* pSqlNode = (SSqlNode*)taosArrayGetP(info1.sub.node, 0);
  ret = validateSqlNode(pSqlNode, pQueryInfo, &buf);
  ASSERT_EQ(ret, 0);

  struct SQueryPlanNode* n = nullptr;
  code = createQueryPlan((const SQueryNode*)pQueryInfo, &n);

  char* str = NULL;
  queryPlanToString(n, &str);

  printf("--------SQL:%s\n", sql);
  printf("%s\n", str);

  destroyQueryInfo(pQueryInfo);
  qParserCleanupMetaRequestInfo(&req);
  destroySqlInfo(&info1);
}
}

TEST(testCase, planner_test) {
  SSqlInfo info1 = doGenerateAST("select top(a*b / 99, 20) from `t.1abc` interval(10s, 1s)");
  ASSERT_EQ(info1.valid, true);

  char    msg[128] = {0};
  SMsgBuf buf;
  buf.len = 128;
  buf.buf = msg;

  SSqlNode* pNode = (SSqlNode*) taosArrayGetP(((SArray*)info1.sub.node), 0);
  int32_t code = evaluateSqlNode(pNode, TSDB_TIME_PRECISION_NANO, &buf);
  ASSERT_EQ(code, 0);

  SCatalogReq req = {0};
  int32_t  ret = qParserExtractRequestedMetaInfo(&info1, &req, msg, 128);
  ASSERT_EQ(ret, 0);
  ASSERT_EQ(taosArrayGetSize(req.pTableName), 1);

  SQueryStmtInfo* pQueryInfo = createQueryInfo();
  setTableMetaInfo(pQueryInfo, &req);

  SSqlNode* pSqlNode = (SSqlNode*)taosArrayGetP(info1.sub.node, 0);
  ret = validateSqlNode(pSqlNode, pQueryInfo, &buf);
  ASSERT_EQ(ret, 0);

  SArray* pExprList = pQueryInfo->exprList[0];

  int32_t num = tsCompatibleModel? 2:1;
  ASSERT_EQ(taosArrayGetSize(pExprList), num);

  SExprInfo* p1 = (SExprInfo*) taosArrayGetP(pExprList, 1);
  ASSERT_EQ(p1->base.pColumns->uid, 110);
  ASSERT_EQ(p1->base.numOfParams, 1);
  ASSERT_EQ(p1->base.resSchema.type, TSDB_DATA_TYPE_DOUBLE);
  ASSERT_STRCASEEQ(p1->base.resSchema.name, "top(a*b / 99, 20)");
  ASSERT_EQ(p1->base.pColumns->flag, TSDB_COL_TMP);
  ASSERT_STRCASEEQ(p1->base.token, "top(a*b / 99, 20)");
  ASSERT_EQ(p1->base.interBytes, 16);

  ASSERT_EQ(p1->pExpr->nodeType, TEXPR_FUNCTION_NODE);
  ASSERT_STREQ(p1->pExpr->_function.functionName, "top");

  tExprNode* pParam = p1->pExpr->_function.pChild[0];

  ASSERT_EQ(pParam->nodeType, TEXPR_COL_NODE);
  ASSERT_EQ(taosArrayGetSize(pQueryInfo->colList), 3);
  ASSERT_EQ(pQueryInfo->fieldsInfo.numOfOutput, 2);

  struct SQueryPlanNode* n = nullptr;
  code = createQueryPlan((const SQueryNode*)pQueryInfo, &n);

  char* str = NULL;
  queryPlanToString(n, &str);
  printf("%s\n", str);

  destroyQueryInfo(pQueryInfo);
  qParserCleanupMetaRequestInfo(&req);
  destroySqlInfo(&info1);
}

TEST(testCase, displayPlan) {
  generateLogicplan("select count(*) from `t.1abc`");
  generateLogicplan("select count(*)+ 22 from `t.1abc`");
  generateLogicplan("select count(*)+ 22 from `t.1abc` interval(1h, 20s) sliding(10m) limit 20,30");
  generateLogicplan("select count(*) from `t.1abc` group by a");
  generateLogicplan("select count(A+B) from `t.1abc` group by a");
  generateLogicplan("select count(length(a)+b) from `t.1abc` group by a");
  generateLogicplan("select count(*) from `t.1abc` interval(10s, 5s) sliding(7s)");
  generateLogicplan("select count(*) from `t.1abc` interval(10s, 5s) sliding(7s) order by 1 desc ");
  generateLogicplan("select count(*),sum(a),avg(b),min(a+b)+99 from `t.1abc`");
  generateLogicplan("select count(*), min(a) + 99 from `t.1abc`");
  generateLogicplan("select count(length(count(*) + 22)) from `t.1abc`");
  generateLogicplan("select concat(concat(a,b), concat(a,b)) from `t.1abc` limit 20");
  generateLogicplan("select count(*), first(a), last(b) from `t.1abc` state_window(a)");
  generateLogicplan("select count(*), first(a), last(b) from `t.1abc` session(ts, 20s)");

  // order by + group by column + limit offset
  generateLogicplan("select top(a, 20) k from `t.1abc` order by k asc limit 3 offset 1");

  // fill
  generateLogicplan("select min(a) from `t.1abc` where ts>now and ts<now+2h interval(1s) fill(linear)");

  // union + union all



  // join

  // Aggregate(count(*) [count(*) #5056], sum(a) [sum(a) #5057], avg(b) [avg(b) #5058], min(a+b) [min(a+b) #5060])
  // Projection(cols: [a+b #5059]) filters:(nil)
  //  Projection(cols: [ts #0], [a #1], [b #2]) filters:(nil)
  //   TableScan(t.1abc #110) time_range: -9223372036854775808 - 9223372036854775807

}