#include "gtest/gtest.h"

#include "leveldb/env.h"
#include "leveldb/db.h"
// 这个头文件是为了EncodeFixed32
#include "util/coding.h"

using namespace leveldb;

constexpr int value_size = 2048;
constexpr int data_size = 128 << 20;

Status OpenDB(std::string dbName, DB **db) {
  Options options;
  options.create_if_missing = true;
  return DB::Open(options, dbName, db);
}


//测试多字段-橙
TEST(TestSchema, Basic) {
    DB *db;
    if(OpenDB("testdb", &db).ok() == false) {
      std::cerr << "open db failed" << std::endl;
      abort();
    }
    std::string key = "k_1";
    
    FieldArray fields = {
        {"name", "Customer#000000001"},
        {"address", "IVhzIApeRb"}, 
        {"phone", "25-989-741-2988"}
    };

    db->Put_fields(WriteOptions(), key, fields);

    db->Get_fields(ReadOptions(), key, &fields);
    
    //清理数据库
    delete db;
}
// 测试 FindKeysByField 函数
  /*
  1.在测试中创建多个键值对,验证 FindKeysByField 能否正确地查找并返回匹配的键。
  2.使用 FindKeysByField 查找字段值，检查它是否能够找到匹配的键。
  */
TEST(TestSchema, FindKeysByFieldTest) {
    DB *db;
    if (OpenDB("testdb", &db).ok() == false) {
        std::cerr << "open db failed" << std::endl;
        abort();
    }

    // 插入多个键值对
    std::string key1 = "k_1";
    FieldArray fields1 = {
        {"name", "Customer#000000001"},
        {"address", "IVhzIApeRb"}, 
        {"phone", "25-989-741-2988"}
    };
    db->Put_fields(WriteOptions(), key1, fields1);

    std::string key2 = "k_2";
    FieldArray fields2 = {
        {"name", "Customer#000000002"},
        {"address", "IVhzIApeRb"},
        {"phone", "25-123-456-7890"}
    };
    db->Put_fields(WriteOptions(), key2, fields2);

    std::string key3 = "k_3";
    FieldArray fields3 = {
        {"name", "Customer#000000003"},
        {"address", "TXkjZEdIrZ"},
        {"phone", "25-555-888-1234"}
    };
    db->Put_fields(WriteOptions(), key3, fields3);

    // 测试 FindKeysByField
    Field search_field = {"address", "IVhzIApeRb"};
    std::vector<std::string> matching_keys = db->FindKeysByField(db, search_field);

    EXPECT_EQ(matching_keys.size(), 2); 
    EXPECT_TRUE(std::find(matching_keys.begin(), matching_keys.end(), key1) != matching_keys.end());
    EXPECT_TRUE(std::find(matching_keys.begin(), matching_keys.end(), key2) != matching_keys.end());

    // 清理数据库
    delete db;
}
int main(int argc, char** argv) {
  // All tests currently run with the same read-only file limits.
  testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}