/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF.  The full HDF copyright notice, including       *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF/releases/.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include "vg_priv.h"
#include "hdp.h"

#define BUFFER 1048576

/* ------------------------------------------------ */

int32
dumpvd(int32 vd, file_format_t ff, int data_only, FILE *fp, char separator[2], int32 flds_indices[VSFIELDMAX],
       int dumpallfields)
{
    char            vdname[VSNAMELENMAX + 1];
    int32           j, i, t, interlace, nv, vsize;
    uint8          *bb = NULL;
    uint8          *b  = NULL;
    DYN_VWRITELIST *w  = NULL;
    int (*vfmtfn[VSFIELDMAX])(void *, file_format_t ff, FILE *);
    int32  off[VSFIELDMAX];
    int32  order[VSFIELDMAX];
    int32  nattrs[VSFIELDMAX];
    size_t bufsize; /* size of the buffer we are using */
    int32  chunk;   /* number of rows that will fit in the buffer */
    int32  done;    /* number of rows we have done */
    int32  count;   /* number of rows to do this time through
                               the loop */
    int32 nf;       /* number of fields in this Vdata */
    int32 x, display;
    int32 temp;
    int32 addr_width = 0;
    int32 num_digits;
    int32 address = 0;
    int32 nfields;
    int32 cnt1, cnt2;
    int32 cn        = 0;
    int32 ret_value = SUCCEED;

    char *fields = NULL;
    char *flds   = NULL;

    fields = (char *)calloc(VSFIELDMAX * FIELDNAMELENMAX, sizeof(char));
    CHECK_ALLOC(fields, "fields", "dumpvd");
    flds = (char *)calloc(VSFIELDMAX * FIELDNAMELENMAX, sizeof(char));
    CHECK_ALLOC(flds, "flds", "dumpvd");

    /* inquire about vdata */
    if (FAIL == VSinquire(vd, &nv, &interlace, fields, &vsize, vdname)) {
        ret_value = FAIL;
        goto done;
    }

    if (nv * vsize > BUFFER) /* If the number of records in the vdata is
                                bigger than the buffer size, then divide
                                the records into chunks. */
    {
        bufsize = BUFFER;
        chunk   = BUFFER / vsize;
    }
    else
    /* Otherwise, all the records will be read in at one time. */
    {
        bufsize = (size_t)(nv * vsize);
        chunk   = nv;
    }

    done = 0;
    /* Allocate space for the buffer and terminate hdp if allocation fails. */
    bb = (uint8 *)malloc(bufsize);
    CHECK_ALLOC(bb, "bb", "dumpvd");

    if (FAIL == VSsetfields(vd, fields)) {
        fprintf(stderr, "dumpvd: VSsetfields failed for vd = %d \n", (int)vd);
        ret_value = FAIL;
        goto done;
    }

    w = vswritelist(vd);

    nf = w->n;
    x  = 0;                  /* Used for accessing the array storing the indices of the
                                selected fields. */
    for (i = 0; i < nf; i++) /* Read in data of all the fields. */
    {
        order[i] = w->order[i];

        /* Set offset for the next element. */
        off[i]    = DFKNTsize(w->type[i] | DFNT_NATIVE);
        nattrs[i] = VSfnattrs(vd, i);
        if (FAIL == nattrs[i]) {
            fprintf(stderr, "dumpvd: VSfnattrs failed for vd = %d \n", (int)vd);
            ret_value = FAIL;
            goto done;
        }

        /* Display the header of a vdata if the user didn't specify the
           data-only option. */
        if (!data_only) {
            if (ff == DASCII) {
                if ((dumpallfields) || (flds_indices[x] == i)) {
                    fprintf(fp, "- field index %d: [%s], type=%d, order=%d\n", (int)i, w->name[i], w->type[i],
                            w->order[i]);
                    x++;
                }
            }
            /* display attributes - BMR moved this block inside if(!data_only)
               to keep the attributes from being printed - bug #231*/
            if (FAIL == dumpattr(vd, i, 1, ff, fp)) {
                fprintf(stderr, "dumpvd: dumpattr() failed for vd = %d \n", (int)vd);
                ret_value = FAIL;
                goto done;
            }

        } /* if !data_only */

        /* Choose a function for displaying a piece of data of a
           particular type. */
        switch (w->type[i] & 0xff) {
            case DFNT_CHAR:
            case DFNT_UCHAR:
                vfmtfn[i] = fmtchar;
                break;

            case DFNT_UINT8:
                vfmtfn[i] = fmtuint8;
                break;

            case DFNT_INT8:
                vfmtfn[i] = fmtint8;
                break;

            case DFNT_UINT16:
                vfmtfn[i] = fmtuint16;
                break;

            case DFNT_INT16:
                vfmtfn[i] = fmtint16;
                break;

            case DFNT_UINT32:
                vfmtfn[i] = fmtuint32;
                break;

            case DFNT_INT32:
                vfmtfn[i] = fmtint32;
                break;

            case DFNT_FLOAT32:
                vfmtfn[i] = fmtfloat32;
                break;

            case DFNT_FLOAT64:
                vfmtfn[i] = fmtfloat64;
                break;

            default:
                fprintf(stderr, "sorry, type [%d] not supported\n", (int)w->type[i]);
                ret_value = FAIL;
                goto done;

        } /* switch */
    }     /* for */

    cn   = 0;
    done = count = 0;

    if (ff == DASCII) {

        /* If not just the data will be dumped out, then put an address-type
           column on the left so that the user can recognize which record
           he/she is looking at. */
        if (!data_only) {
            temp       = nv / 10;
            address    = 0;
            addr_width = num_digits = 1;
            while (temp != 0) {
                if (temp != 1)
                    addr_width++;
                temp = temp / 10;
            }
            fprintf(fp, "Loc.");
            for (j = 0; j < addr_width - 3; j++)
                fprintf(fp, " ");
            fprintf(fp, "     Data\n");

            /* The address of the first record is 0. Also, fill in the extra
               space on the left with 0's. */
            while (num_digits <= addr_width) {
                fprintf(fp, "0");
                num_digits++;
                cn++;
            }
            fprintf(fp, "      ");
            cn += 6;
            if (addr_width == 2) {
                fprintf(fp, " ");
                cn++;
            }
            else if (addr_width == 1) {
                fprintf(fp, "  ");
                cn += 2;
            }
        } /* while */

        nfields = VSgetfields(vd, flds);
        if (FAIL == nfields) {
            fprintf(stderr, "dumpvd: VSgetfields failed for vd = %d \n", (int)vd);
            ret_value = FAIL;
            goto done;
        }

        cnt1 = 0;
        cnt2 = 0;
        while (done != nv) {
            /* Determine the amount of data to be read this time. */
            if ((nv - done) > chunk)
                count = chunk;
            else
                count = nv - done;

            /* read and update bookkeeping */
            if (FAIL == VSread(vd, bb, count, interlace)) {
                /* If the data set has external element, get the external file
                name to provide information */
                int extfile_namelen = VSgetexternalfile(vd, 0, NULL, NULL);
                if (extfile_namelen > 0) {
                    char *extfile_name = NULL;
                    extfile_name       = (char *)malloc(sizeof(char *) * (size_t)(extfile_namelen + 1));
                    CHECK_ALLOC(extfile_name, "extfile_name", "dumpvd");

                    /* Get the external file info, we don't need offset here */
                    extfile_namelen =
                        VSgetexternalfile(vd, (unsigned)extfile_namelen + 1, extfile_name, NULL);
                    ERROR_GOTO_3("in %s: VSread failed for vd(%d) with external file %s.  Please verify the "
                                 "file exists in the same directory.",
                                 "dumpvd", (int)vd, extfile_name);
                    free(extfile_name);
                }
                else
                    ERROR_GOTO_2("in %s: VSread failed for vd(%d)", "dumpvd", (int)vd);
            }

            done += count;
            b = bb;

            /* Display the data. */
            for (j = 0; j < count; j++) /* each iteration causes one record
                                       to be printed */
            {
                cnt1++;
                x = 0;
                for (i = 0; i < nf; i++) /* display all fields in one record */
                {
                    if ((!dumpallfields) && (flds_indices[x] != i))
                        display = 0;
                    else {
                        display = 1;
                        x++;
                    }

                    for (t = 0; t < order[i]; t++) {
                        if (display)
                            cn += (vfmtfn[i])(b, ff, fp);
                        b += off[i];
                        if (display) {
                            fprintf(fp, " ");
                            cn++;
                            cnt2++;
                        }
                    }
                    if (display) {
                        fprintf(fp, " ");
                        cn++;
                        cnt2++;
                    }
                } /* for i to nf-1 */

                if (cnt2 > 0) {
                    address++;
                    /* "separator" is the symbol used for separating
                       different records. */
                    fprintf(fp, "%s ", separator);
                }

                if (!data_only) {
                    if ((cnt1 * cnt2) > 30) {
                        cnt1 = 0;
                        cnt2 = 0;
                        fprintf(fp, "\n");
                        cn = 0;

                        /* As long as there is data to be displayed,
                           fill in the extra space with 0's on the left
                           of each address. */
                        if (j < (count - 1)) {
                            temp       = address;
                            num_digits = 1;
                            while ((temp = temp / 10) != 0)
                                num_digits++;
                            while (num_digits < addr_width) {
                                fprintf(fp, "0");
                                num_digits++;
                                cn++;
                            }
                            fprintf(fp, "%d      ", (int)address);
                            cn += 6 + num_digits;
                            if (addr_width == 2) {
                                fprintf(fp, " ");
                                cn++;
                            }
                            else if (addr_width == 1) {
                                fprintf(fp, "  ");
                                cn += 2;
                            }
                        } /* if (!data_only) */
                    }
                }
                else
                    fprintf(fp, "\n");
            } /* for (j=0; j<count; j++) */
        }     /* while (done != nv) */

        /* ============================================ */

        free(bb);
        bb = NULL;

        fprintf(fp, "\n\n");
    } /*  for DASCII  */

    else { /*  binary file  */
        nfields = VSgetfields(vd, flds);
        if (FAIL == nfields) {
            fprintf(stderr, "dumpvd: VSgetfields failed for vd = %d \n", (int)vd);
            ret_value = FAIL;
            goto done;
        }

        cnt1 = 0;
        cnt2 = 0;
        while (done != nv) {
            /* Determine the amount of data to be read this time. */
            if ((nv - done) > chunk)
                count = chunk;
            else
                count = nv - done;

            /* read and update bookkeeping */
            if (FAIL == VSread(vd, bb, count, interlace)) {
                /* If the data set has external element, get the external
                   file name to provide information */
                int extfile_namelen = VSgetexternalfile(vd, 0, NULL, NULL);
                if (extfile_namelen > 0) {
                    char *extfile_name = NULL;
                    extfile_name       = (char *)malloc(sizeof(char *) * (size_t)(extfile_namelen + 1));
                    CHECK_ALLOC(extfile_name, "extfile_name", "dumpvd");

                    /* Get the external file info, we don't need offset here */
                    extfile_namelen =
                        VSgetexternalfile(vd, (unsigned)extfile_namelen + 1, extfile_name, NULL);
                    ERROR_GOTO_3("in %s: VSread failed for vd(%d) with external file %s.  Please verify the "
                                 "file exists in the same directory",
                                 "dumpvd", (int)vd, extfile_name);
                    free(extfile_name);
                }
                else
                    ERROR_GOTO_2("in %s: VSread failed for vd(%d)", "dumpvd", (int)vd);
            }

            done += count;
            b = bb;

            /* Display the data. */
            for (j = 0; j < count; j++) /* each iteration causes one record
                                       to be printed */
            {
                cnt1++;
                x = 0;
                for (i = 0; i < nf; i++) /* display all fields in one record */
                {
                    if ((!dumpallfields) && (flds_indices[x] != i))
                        display = 0;
                    else {
                        display = 1;
                        x++;
                    }

                    for (t = 0; t < order[i]; t++) {
                        if (display)
                            cn += (vfmtfn[i])(b, ff, fp);
                        b += off[i];
                        if (display) {

                            cn++;
                            cnt2++;
                        }
                    }
                    if (display) {

                        cn++;
                        cnt2++;
                    }
                } /* for i to nf-1 */
                if (cnt2 > 0) {
                    address++;
                    /* "separator" is the symbol used for separating
                       different records. */
                }

            } /* for (j=0; j<count; j++) */
        }     /* while (done != nv) */

        /* ============================================ */

        free(bb);
        bb = NULL;
    } /* binary file */

done:
    if (ret_value == FAIL) {
        free(bb);
    }

    free(fields);
    free(flds);

    return ret_value;
} /* dumpvd */

/*
 * dumps attributes of vdata for vgroup
 */
int
dumpattr(int32 vid, int32 findex, int isvs, file_format_t ff, FILE *fp)
{
    int    i, k;
    int    cn = 0;
    int    nattrs;
    int    alloc_flag = 0;
    int32  i_type;
    int32  i_count;
    int32  i_size;
    int32  e_size;
    int32  off;
    uint8 *buf = NULL;
    uint8 *ptr = NULL;
    int (*vfmtfn)(void *, file_format_t ff, FILE *);
    int    status;
    int    ret_value = SUCCEED;
    char   name[FIELDNAMELENMAX + 1];
    uint8 *attrbuf = NULL;

    if (NULL == (attrbuf = (uint8 *)calloc(1, BUFFER))) {
        ret_value = FAIL;
        goto done;
    }

    /* vdata or vgroup? */
    if (isvs)
        nattrs = VSfnattrs(vid, findex);
    else
        /* nattrs = Vnattrs(vid); <- replaced with Vnattrs2 to catch all attributes;
                                     previously, SD attributes were missed by V API */
        nattrs = Vnattrs2(vid);

    if (FAIL == nattrs) {
        fprintf(stderr, ">>>dumpattr: Failed to get number of attributes for vid %d \n", (int)vid);
        ret_value = FAIL;
        goto done;
    }

    fprintf(fp, "   number of attributes = %d \n", nattrs);

    /* loop for number of attributes to process */
    for (i = 0; i < nattrs; i++) {
        /* get attribute info of vdata/vgroup */
        if (isvs)
            status = VSattrinfo(vid, findex, i, name, &i_type, &i_count, &e_size);
        else
            /* Changed to use updated func of Vattrinfo - BMR, 1/7/2013 */
            status = Vattrinfo2(vid, i, name, &i_type, &i_count, &e_size, NULL, NULL);

        if (status == FAIL) {
            fprintf(stderr, ">>>dumpattr: failed in getting %d'th attr info.\n", i);
            ret_value = FAIL;
            goto done;
        }

        /* get attribute hdfsize of vdata/vgroup */
        if (isvs)
            status = VSattrhdfsize(vid, findex, i, &i_size);
        else
            status = Vattrhdfsize(vid, i, &i_size);

        if (status == FAIL) {
            fprintf(stderr, ">>>dumpattr: failed in getting %d'th attr hdfsize.\n", i);
            ret_value = FAIL;
            goto done;
        }

        fprintf(fp, "    attr%d: name=%s type=%d count=%d size=%d\n", i, name, (int)i_type, (int)i_count,
                (int)i_size);

        /* we have two buffer sizes? */
        if (e_size > BUFFER) {
            if (NULL == (buf = malloc((size_t)e_size))) {
                fprintf(stderr, ">>>dumpattr:can't allocate buf for %d'th attribute.\n", i);
                ret_value = FAIL;
                goto done; /* do we want exit here? */
            }

            alloc_flag = 1;

            /* get attribute itself */
            if (isvs)
                status = VSgetattr(vid, findex, i, (void *)buf);
            else
                /* Changed to use updated func of Vgetattr - BMR, 1/7/2013 */
                status = Vgetattr2(vid, i, (void *)buf);

            if (status == FAIL) {
                fprintf(stderr, ">>>dympattr: failed in getting %d'th attr .\n", i);
                ret_value = FAIL;
                goto done;
            }
        }
        else {
            /* get attribute itself */
            if (isvs)
                status = VSgetattr(vid, findex, i, (void *)attrbuf);
            else
                /* Changed to use updated func of Vgetattr - BMR, 1/7/2013 */
                status = Vgetattr2(vid, i, (void *)attrbuf);

            if (status == FAIL) {
                fprintf(stderr, ">>>dympattr: failed in getting %d'th attr.\n", i);
                ret_value = FAIL;
                goto done;
            }
        }

        /* format output */
        switch (i_type & 0xff) {
            case DFNT_CHAR:
            case DFNT_UCHAR:
                vfmtfn = fmtchar;
                break;
            case DFNT_UINT8:
                vfmtfn = fmtuint8;
                break;
            case DFNT_INT8:
                vfmtfn = fmtint8;
                break;
            case DFNT_UINT16:
                vfmtfn = fmtuint16;
                break;
            case DFNT_INT16:
                vfmtfn = fmtint16;
                break;
            case DFNT_UINT32:
                vfmtfn = fmtuint32;
                break;
            case DFNT_INT32:
                vfmtfn = fmtint32;
                break;
            case DFNT_FLOAT32:
                vfmtfn = fmtfloat32;
                break;
            case DFNT_FLOAT64:
                vfmtfn = fmtfloat64;
                break;
            default:
                fprintf(stderr, ">>>dumpattr: sorry, type [%d] not supported\n", (int)i_type);
                ret_value = FAIL;
                goto done;
        }

        /* find offset */
        off = DFKNTsize(i_type | DFNT_NATIVE);

        /* which buffer are we using? */
        ptr = (alloc_flag) ? buf : attrbuf;

        putchar('\t');
        cn = 0;
        for (k = 0; k < i_count; k++) {
            cn += vfmtfn((uint8 *)ptr, ff, fp);
            ptr += off;
            putchar(' ');
            cn++;
            if (cn > 55) {
                putchar('\n');
                putchar('\t');
                cn = 0;
            }
        }

        if (cn)
            putchar('\n');

        /* free allocated space if any */
        if (alloc_flag) {
            free(buf);
            alloc_flag = 0;
            buf        = NULL;
        }
    } /* for i */

done:
    free(attrbuf);
    if (ret_value == FAIL) { /* Failure cleanup */
        free(buf);
    }

    return ret_value;
}
