/* @tier medium @module vl @transform validation-online */
/*
 * vl_ol_0031.pgc - 정합성 반려처리 서비스 (VL_OL_0031)  [tier=medium]
 *
 * 검토건을 불일치(U) 상태로 전이하고, 반려이력(vl_reject_hist) 에
 * 반려자/반려사유/반려일시를 INSERT 한다.
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "txcore.h"
#include "txcore_dbio.h"
#include "acq_util.h"
#include "vl_core.h"

EXEC SQL INCLUDE sqlca;

TX_SERVICE(VL_OL_0031, ctx)
{
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16];
    char h_rejector[16];
    char h_reason[128];
    EXEC SQL END DECLARE SECTION;

    vl_rec_t rec;
    char key[16];
    char rejector[16];
    char reason[128];
    int  rc;

    tx_log(TX_LOG_INFO, "[VL_OL_0031] 정합성 반려처리 서비스 진입");

    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK ||
        tx_buf_get(ctx->in, "REJECTOR", rejector, sizeof(rejector)) != TX_OK ||
        tx_buf_get(ctx->in, "REASON", reason, sizeof(reason)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0031] 필수 필드(KEY/REJECTOR/REASON) 누락");
        tx_buf_sets(ctx->out, "ERRCODE", "VL3100");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    if (strlen(reason) == 0) {
        tx_log(TX_LOG_WARN, "[VL_OL_0031] 반려사유 공백 key=%s", key);
        tx_buf_sets(ctx->out, "ERRCODE", "VL3101");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }

    memset(&rec, 0, sizeof(rec));
    rc = vl_rec_select(key, &rec);
    if (rc != TX_OK) {
        tx_log(TX_LOG_WARN, "[VL_OL_0031] 원장 없음 key=%s rc=%d(%s)",
               key, rc, tx_strerror(rc));
        tx_buf_sets(ctx->out, "ERRCODE", "VL3102");
        tx_return(ctx, rc, ctx->out);
        return;
    }

    /* 정산완료 건은 반려 불가 */
    if (strcmp(rec.status, VL_ST_SETTLED) == 0) {
        tx_log(TX_LOG_WARN, "[VL_OL_0031] 정산완료 반려불가 key=%s", key);
        tx_buf_reset(ctx->out);
        tx_buf_sets(ctx->out, "KEY", key);
        tx_buf_sets(ctx->out, "STATUS", rec.status);
        tx_buf_sets(ctx->out, "RESULT", "LOCKED");
        tx_buf_sets(ctx->out, "ERRCODE", "VL3103");
        tx_return(ctx, TX_OK, ctx->out);
        return;
    }

    if (tx_begin() != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0031] 트랜잭션 시작 실패");
        tx_buf_sets(ctx->out, "ERRCODE", "VL3104");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    rc = vl_rec_update_status(key, VL_ST_FAIL);
    if (rc != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0031] 상태전이(U) 실패 key=%s rc=%d(%s)",
               key, rc, tx_strerror(rc));
        tx_abort();
        tx_buf_sets(ctx->out, "ERRCODE", "VL3105");
        tx_return(ctx, rc, ctx->out);
        return;
    }

    strncpy(h_key, key, sizeof(h_key) - 1);
    h_key[sizeof(h_key) - 1] = '\0';
    strncpy(h_rejector, rejector, sizeof(h_rejector) - 1);
    h_rejector[sizeof(h_rejector) - 1] = '\0';
    strncpy(h_reason, reason, sizeof(h_reason) - 1);
    h_reason[sizeof(h_reason) - 1] = '\0';

    EXEC SQL INSERT INTO vl_reject_hist
               (txn_key, rejector_id, reject_reason, reject_dt)
        VALUES (:h_key, :h_rejector, :h_reason,
                TO_CHAR(SYSTIMESTAMP, 'YYYYMMDDHH24MISS'));

    if (sqlca.sqlcode != TX_SQL_OK) {
        TX_DBIO_LOG_ERR("INSERT vl_reject_hist");
        tx_abort();
        tx_buf_sets(ctx->out, "ERRCODE", "VL3109");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    if (tx_commit() != TX_OK) {
        tx_log(TX_LOG_ERROR, "[VL_OL_0031] 커밋 실패 key=%s", key);
        tx_abort();
        tx_buf_sets(ctx->out, "ERRCODE", "VL3106");
        tx_return(ctx, TX_EDB, ctx->out);
        return;
    }

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "KEY", key);
    tx_buf_sets(ctx->out, "REJECTOR", rejector);
    tx_buf_sets(ctx->out, "STATUS", VL_ST_FAIL);
    tx_buf_sets(ctx->out, "RESULT", "REJECTED");
    tx_buf_sets(ctx->out, "ERRCODE", RESP_OK);

    tx_log(TX_LOG_INFO, "[VL_OL_0031] 반려처리 완료 key=%s rejector=%s",
           key, rejector);
    tx_return(ctx, TX_OK, ctx->out);
}
