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using System.Linq.Expressions;
using LinqToDB.Data;
using Nop.Core;
namespace Nop.Data;
/// <summary>
/// Represents a data provider
/// </summary>
public partial interface INopDataProvider
{
#region Methods
/// <summary>
/// Create the database
/// </summary>
/// <param name="triesToConnect">Count of tries to connect to the database after creating; set 0 if no need to connect after creating</param>
void CreateDatabase(int triesToConnect = 10);
/// <summary>
/// Creates a new temporary storage and populate it using data from provided query
/// </summary>
/// <param name="storeKey">Name of temporary storage</param>
/// <param name="query">Query to get records to populate created storage with initial data</param>
/// <typeparam name="TItem">Storage record mapping class</typeparam>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the iQueryable instance of temporary storage
/// </returns>
Task<ITempDataStorage<TItem>> CreateTempDataStorageAsync<TItem>(string storeKey, IQueryable<TItem> query)
where TItem : class;
/// <summary>
/// Initialize database
/// </summary>
void InitializeDatabase();
/// <summary>
/// Insert a new entity
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <param name="entity">Entity</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the entity
/// </returns>
Task<TEntity> InsertEntityAsync<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Insert a new entity
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <param name="entity">Entity</param>
/// <returns>Entity</returns>
TEntity InsertEntity<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Updates record in table, using values from entity parameter.
/// Record to update identified by match on primary key value from obj value.
/// </summary>
/// <param name="entity">Entity with data to update</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>A task that represents the asynchronous operation</returns>
Task UpdateEntityAsync<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Updates record in table, using values from entity parameter.
/// Record to update identified by match on primary key value from obj value.
/// </summary>
/// <param name="entity">Entity with data to update</param>
/// <typeparam name="TEntity">Entity type</typeparam>
void UpdateEntity<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Updates records in table, using values from entity parameter.
/// Records to update are identified by match on primary key value from obj value.
/// </summary>
/// <param name="entities">Entities with data to update</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>A task that represents the asynchronous operation</returns>
Task UpdateEntitiesAsync<TEntity>(IEnumerable<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Updates records in table, using values from entity parameter.
/// Records to update are identified by match on primary key value from obj value.
/// </summary>
/// <param name="entities">Entities with data to update</param>
/// <typeparam name="TEntity">Entity type</typeparam>
void UpdateEntities<TEntity>(IEnumerable<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Deletes record in table. Record to delete identified
/// by match on primary key value from obj value.
/// </summary>
/// <param name="entity">Entity for delete operation</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>A task that represents the asynchronous operation</returns>
Task DeleteEntityAsync<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Deletes record in table. Record to delete identified
/// by match on primary key value from obj value.
/// </summary>
/// <param name="entity">Entity for delete operation</param>
/// <typeparam name="TEntity">Entity type</typeparam>
void DeleteEntity<TEntity>(TEntity entity) where TEntity : BaseEntity;
/// <summary>
/// Performs delete records in a table
/// </summary>
/// <param name="entities">Entities for delete operation</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>A task that represents the asynchronous operation</returns>
Task BulkDeleteEntitiesAsync<TEntity>(IList<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Performs delete records in a table
/// </summary>
/// <param name="entities">Entities for delete operation</param>
/// <typeparam name="TEntity">Entity type</typeparam>
void BulkDeleteEntities<TEntity>(IList<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Performs delete records in a table by a condition
/// </summary>
/// <param name="predicate">A function to test each element for a condition.</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the number of deleted records
/// </returns>
Task<int> BulkDeleteEntitiesAsync<TEntity>(Expression<Func<TEntity, bool>> predicate) where TEntity : BaseEntity;
/// <summary>
/// Performs delete records in a table by a condition
/// </summary>
/// <param name="predicate">A function to test each element for a condition.</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>
/// The number of deleted records
/// </returns>
int BulkDeleteEntities<TEntity>(Expression<Func<TEntity, bool>> predicate) where TEntity : BaseEntity;
/// <summary>
/// Performs bulk insert entities operation
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <param name="entities">Collection of Entities</param>
/// <returns>A task that represents the asynchronous operation</returns>
Task BulkInsertEntitiesAsync<TEntity>(IEnumerable<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Performs bulk insert entities operation
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <param name="entities">Collection of Entities</param>
void BulkInsertEntities<TEntity>(IEnumerable<TEntity> entities) where TEntity : BaseEntity;
/// <summary>
/// Gets the name of a foreign key
/// </summary>
/// <param name="foreignTable">Foreign key table</param>
/// <param name="foreignColumn">Foreign key column name</param>
/// <param name="primaryTable">Primary table</param>
/// <param name="primaryColumn">Primary key column name</param>
/// <returns>Name of a foreign key</returns>
string CreateForeignKeyName(string foreignTable, string foreignColumn, string primaryTable, string primaryColumn);
/// <summary>
/// Gets the name of an index
/// </summary>
/// <param name="targetTable">Target table name</param>
/// <param name="targetColumn">Target column name</param>
/// <returns>Name of an index</returns>
string GetIndexName(string targetTable, string targetColumn);
/// <summary>
/// Returns queryable source for specified mapping class for current connection,
/// mapped to database table or view.
/// </summary>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>Queryable source</returns>
IQueryable<TEntity> GetTable<TEntity>() where TEntity : BaseEntity;
/// <summary>
/// Get the current identity value
/// </summary>
/// <typeparam name="TEntity">Entity</typeparam>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the integer identity; null if cannot get the result
/// </returns>
Task<int?> GetTableIdentAsync<TEntity>() where TEntity : BaseEntity;
/// <summary>
/// Checks if the specified database exists, returns true if database exists
/// </summary>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the returns true if the database exists.
/// </returns>
Task<bool> DatabaseExistsAsync();
/// <summary>
/// Checks if the specified database exists, returns true if database exists
/// </summary>
/// <returns>Returns true if the database exists.</returns>
bool DatabaseExists();
/// <summary>
/// Creates a backup of the database
/// </summary>
/// <returns>A task that represents the asynchronous operation</returns>
Task BackupDatabaseAsync(string fileName);
/// <summary>
/// Restores the database from a backup
/// </summary>
/// <param name="backupFileName">The name of the backup file</param>
/// <returns>A task that represents the asynchronous operation</returns>
Task RestoreDatabaseAsync(string backupFileName);
/// <summary>
/// Re-index database tables
/// </summary>
/// <returns>A task that represents the asynchronous operation</returns>
Task ReIndexTablesAsync();
/// <summary>
/// Shrinks database
/// </summary>
/// <returns>A task that represents the asynchronous operation</returns>
Task ShrinkDatabaseAsync();
/// <summary>
/// Build the connection string
/// </summary>
/// <param name="nopConnectionString">Connection string info</param>
/// <returns>Connection string</returns>
string BuildConnectionString(INopConnectionStringInfo nopConnectionString);
/// <summary>
/// Set table identity (is supported)
/// </summary>
/// <typeparam name="TEntity">Entity</typeparam>
/// <param name="ident">Identity value</param>
/// <returns>A task that represents the asynchronous operation</returns>
Task SetTableIdentAsync<TEntity>(int ident) where TEntity : BaseEntity;
/// <summary>
/// Get hash values of a stored entity field
/// </summary>
/// <param name="predicate">A function to test each element for a condition.</param>
/// <param name="keySelector">A key selector which should project to a dictionary key</param>
/// <param name="fieldSelector">A field selector to apply a transform to a hash value</param>
/// <typeparam name="TEntity">Entity type</typeparam>
/// <returns>Dictionary</returns>
Task<IDictionary<int, string>> GetFieldHashesAsync<TEntity>(Expression<Func<TEntity, bool>> predicate,
Expression<Func<TEntity, int>> keySelector,
Expression<Func<TEntity, object>> fieldSelector) where TEntity : BaseEntity;
/// <summary>
/// Executes command asynchronously and returns number of affected records
/// </summary>
/// <param name="sql">Command text</param>
/// <param name="dataParameters">Command parameters</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the number of records, affected by command execution.
/// </returns>
Task<int> ExecuteNonQueryAsync(string sql, params DataParameter[] dataParameters);
/// <summary>
/// Executes command using System.Data.CommandType.StoredProcedure command type and
/// returns results as collection of values of specified type
/// </summary>
/// <typeparam name="T">Result record type</typeparam>
/// <param name="procedureName">Procedure name</param>
/// <param name="parameters">Command parameters</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the returns collection of query result records
/// </returns>
Task<IList<T>> QueryProcAsync<T>(string procedureName, params DataParameter[] parameters);
/// <summary>
/// Executes command and returns results as collection of values of specified type
/// </summary>
/// <typeparam name="T">Result record type</typeparam>
/// <param name="sql">Command text</param>
/// <param name="parameters">Command parameters</param>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the returns collection of query result records
/// </returns>
Task<IList<T>> QueryAsync<T>(string sql, params DataParameter[] parameters);
/// <summary>
/// Truncates database table
/// </summary>
/// <param name="resetIdentity">Performs reset identity column</param>
Task TruncateAsync<TEntity>(bool resetIdentity = false) where TEntity : BaseEntity;
/// <summary>
/// Gets the name of the database collation
/// </summary>
/// <returns>
/// A task that represents the asynchronous operation
/// The task result contains the collation name
/// </returns>
Task<string> GetDataBaseCollationAsync();
#endregion
#region Properties
/// <summary>
/// Name of database provider
/// </summary>
string ConfigurationName { get; }
/// <summary>
/// Gets allowed a limit input value of the data for hashing functions, returns 0 if not limited
/// </summary>
int SupportedLengthOfBinaryHash { get; }
/// <summary>
/// Gets a value indicating whether this data provider supports backup
/// </summary>
bool BackupSupported { get; }
#endregion
}