/* @tier hard @module py @transform payment-online */
/*
 * py_ol_0008.pgc - 지급 분할(회차별 분할지급 INSERT) (PY_OL_0008)  [tier=hard]
 *
 * TxCore TX_SERVICE 엔트리. 요청 TXBUF 를 검증하고 임베디드 SQL / 표준
 * DBIO / tx_call 로 처리한 뒤 응답 TXBUF 를 구성한다.
 */
#include <stdio.h>
#include <string.h>

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

EXEC SQL INCLUDE sqlca;

TX_SERVICE(PY_OL_0008, ctx)
{
    char key[16];
    if (tx_buf_get(ctx->in, "KEY", key, sizeof(key)) != TX_OK) {
        tx_log(TX_LOG_ERROR, "[PY_OL_0008] KEY 누락");
        tx_return(ctx, TX_EINVAL, ctx->out);
        return;
    }
    EXEC SQL BEGIN DECLARE SECTION;
    char h_key[16], h_merch[16], h_bdate[9], h_split[16];
    long h_amount, h_per;
    int  h_seq;
    EXEC SQL END DECLARE SECTION;

    long total = 0;
    int  parts = 0, i;

    tx_log(TX_LOG_INFO, "[PY_OL_0008] 지급 분할 진입");
    strncpy(h_key, key, 15); h_key[15] = '\0';
    { long v = 0; tx_buf_getlong(ctx->in, "PARTS", &v); parts = (int)v; }
    if (parts < 2 || parts > 12) {
        tx_return(ctx, TX_EINVAL, ctx->out); return;
    }

    EXEC SQL SELECT merch_id, amount, biz_date INTO :h_merch, :h_amount, :h_bdate
        FROM py_ledger WHERE key = :h_key;
    if (sqlca.sqlcode == TX_SQL_NOTFOUND) { tx_return(ctx, TX_ENOENT, ctx->out); return; }
    total = h_amount;
    h_per = total / parts;

    if (tx_begin() != TX_OK) tx_log(TX_LOG_WARN, "[PY_OL_0008] tx_begin 경고");
    for (i = 1; i <= parts; i++) {
        h_seq = i;
        snprintf(h_split, sizeof(h_split), "%.10s-%02d", h_key, i);
        EXEC SQL INSERT INTO py_ledger (key, merch_id, card_no, amount, biz_date, status, fee)
            VALUES (:h_split, :h_merch, 'SPLIT', :h_per, :h_bdate, 'R', 0);
        if (sqlca.sqlcode != TX_SQL_OK) {
            TX_DBIO_LOG_ERR("py_ol_0008 분할INSERT"); tx_abort();
            tx_return(ctx, TX_EDB, ctx->out); return;
        }
    }
    EXEC SQL UPDATE py_ledger SET status = 'S', upd_ts = now() WHERE key = :h_key;
    tx_commit();

    tx_buf_reset(ctx->out);
    tx_buf_sets(ctx->out, "RESPCODE", RESP_OK);
    tx_buf_setlong(ctx->out, "PARTS", parts);
    tx_buf_setlong(ctx->out, "PERAMT", h_per);
    tx_log(TX_LOG_INFO, "[PY_OL_0008] 분할지급 %d회차 회당=%ld", parts, h_per);
    tx_return(ctx, TX_OK, ctx->out);
}