//-----------------------------------------------------------------------------
// Copyright (c) 2016, 2017 Oracle and/or its affiliates.  All rights reserved.
// This program is free software: you can modify it and/or redistribute it
// under the terms of:
//
// (i)  the Universal Permissive License v 1.0 or at your option, any
//      later version (http://oss.oracle.com/licenses/upl); and/or
//
// (ii) the Apache License v 2.0. (http://www.apache.org/licenses/LICENSE-2.0)
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// TestLongRaws.c
//   Tests inserting and fetching long raw columns.
//-----------------------------------------------------------------------------

#include "SampleLib.h"
#define SQL_TEXT_TRUNC      "truncate table TestLongRaws"
#define SQL_TEXT_INSERT     "insert into TestLongRaws values (:1, :2)"
#define SQL_TEXT_QUERY      "select * from TestLongRaws order by IntCol"
#define ARRAY_SIZE          4
#define NUM_ROWS            13
#define SIZE_INCREMENT      75000

//-----------------------------------------------------------------------------
// main()
//-----------------------------------------------------------------------------
int main(int argc, char **argv)
{
    uint32_t i, longValueLength, numQueryColumns, bufferRowIndex;
    dpiData *intColValue, *longColValue;
    dpiVar *intColVar, *longColVar;
    char *longValue;
    dpiConn *conn;
    dpiStmt *stmt;
    int found;

    // connect to database
    conn = dpiSamples_getConn(0, NULL);

    // truncate the table so that the test can be repeated
    if (dpiConn_prepareStmt(conn, 0, SQL_TEXT_TRUNC, strlen(SQL_TEXT_TRUNC),
            NULL, 0, &stmt) < 0)
        return dpiSamples_showError();
    if (dpiStmt_execute(stmt, DPI_MODE_EXEC_DEFAULT, &numQueryColumns) < 0)
        return dpiSamples_showError();
    dpiStmt_release(stmt);

    // create variables for insertion
    if (dpiConn_newVar(conn, DPI_ORACLE_TYPE_NUMBER, DPI_NATIVE_TYPE_INT64,
            ARRAY_SIZE, 0, 0, 0, NULL, &intColVar, &intColValue) < 0)
        return dpiSamples_showError();
    if (dpiConn_newVar(conn, DPI_ORACLE_TYPE_LONG_RAW, DPI_NATIVE_TYPE_BYTES,
            ARRAY_SIZE, 0, 0, 0, NULL, &longColVar, &longColValue) < 0)
        return dpiSamples_showError();

    // prepare insert statement
    if (dpiConn_prepareStmt(conn, 0, SQL_TEXT_INSERT, strlen(SQL_TEXT_INSERT),
            NULL, 0, &stmt) < 0)
        return dpiSamples_showError();

    // insert the requested number of rows
    for (i = 1; i <= NUM_ROWS; i++) {

        // perform binds
        if (dpiStmt_bindByPos(stmt, 1, intColVar) < 0)
            return dpiSamples_showError();
        if (dpiStmt_bindByPos(stmt, 2, longColVar) < 0)
            return dpiSamples_showError();

        // create long string of specified size
        longValueLength = i * SIZE_INCREMENT;
        printf("Inserting row %d with long column of length %d\n", i,
                longValueLength);
        longValue = malloc(longValueLength);
        if (!longValue) {
            fprintf(stderr, "Out of memory!\n");
            return -1;
        }
        memset(longValue, 13, longValueLength);

        // insert value
        intColValue->isNull = 0;
        intColValue->value.asInt64 = i;
        if (dpiVar_setFromBytes(longColVar, 0, longValue, longValueLength) < 0)
            return dpiSamples_showError();
        free(longValue);
        if (dpiStmt_execute(stmt, DPI_MODE_EXEC_DEFAULT, &numQueryColumns) < 0)
            return dpiSamples_showError();

    }
    dpiStmt_release(stmt);
    printf("\n");

    // perform commit
    if (dpiConn_commit(conn) < 0)
        return dpiSamples_showError();

    // prepare statement for query
    if (dpiConn_prepareStmt(conn, 0, SQL_TEXT_QUERY, strlen(SQL_TEXT_QUERY),
            NULL, 0, &stmt) < 0)
        return dpiSamples_showError();
    if (dpiStmt_setFetchArraySize(stmt, ARRAY_SIZE) < 0)
        return dpiSamples_showError();
    if (dpiStmt_execute(stmt, DPI_MODE_EXEC_DEFAULT, &numQueryColumns) < 0)
        return dpiSamples_showError();
    if (dpiStmt_define(stmt, 1, intColVar) < 0)
        return dpiSamples_showError();
    if (dpiStmt_define(stmt, 2, longColVar) < 0)
        return dpiSamples_showError();

    // fetch rows
    while (1) {
        if (dpiStmt_fetch(stmt, &found, &bufferRowIndex) < 0)
            return dpiSamples_showError();
        if (!found)
            break;
        printf("Fetched row %" PRId64 " with long column of length %d\n",
                intColValue[bufferRowIndex].value.asInt64,
                longColValue[bufferRowIndex].value.asBytes.length);
    }

    // clean up
    dpiVar_release(intColVar);
    dpiVar_release(longColVar);
    dpiStmt_release(stmt);
    dpiConn_release(conn);

    printf("Done.\n");
    return 0;
}