/* j/6/ut_busk.c
**
** This file is in the public domain.
*/
#include "all.h"
#include "../pit.h"

    u2_ho_jet 
    j2_mcj(Pt6, ut, busk)[];

/* logic
*/
  u2_noun                                                         //  transfer
  j2_mcx(Pt6, ut, busk)(u2_wire wir_r, 
                        u2_noun van,                              //  retain
                        u2_noun sut,                              //  retain
                        u2_noun cog,                              //  retain
                        u2_noun hyp)                              //  retain
  {
    u2_noun sep = j2_mcy(Pt6, ut, seep)(wir_r, van, sut, c3__both, hyp);
    u2_noun bid = u2_bt(wir_r, u2k(cog), u2k(hyp), sep);
    u2_noun ret = j2_mby(Pt6, bull)(wir_r, bid, sut);

    u2z(bid);

    return ret;
  }

/* boilerplate
*/
  u2_noun                                                         //  transfer
  j2_mc(Pt6, ut, busk)(u2_wire wir_r, 
                       u2_noun cor)                               //  retain
  {
    u2_noun sut, cog, hyp, van;

    if ( (u2_no == u2_mean(cor, u2_cv_sam_2, &cog, 
                                u2_cv_sam_3, &hyp, 
                                u2_cv_con, &van, 
                                0)) ||
         (u2_no == u2_stud(cog)) ||
         (u2_none == (sut = u2_frag(u2_cv_sam, van))) )
    {
      return u2_bl_bail(wir_r, c3__fail);
    } else {
      return j2_mcx(Pt6, ut, busk)(wir_r, van, sut, cog, hyp);
    }
  }

  u2_weak                                                         //  transfer
  j2_mci(Pt6, ut, busk)(u2_wire wir_r,
                        u2_noun van,                              //  retain
                        u2_noun sut,                              //  retain 
                        u2_noun cog,                              //  retain
                        u2_noun hyp)                              //  retain
  {
    u2_weak hoc = u2_ds_look(wir_r, van, "busk");

    if ( u2_none == hoc ) {
      c3_assert(!"register busk");
      return u2_none;
    } else {
      u2_weak von = u2_rl_molt(wir_r, van, u2_cv_sam, u2_rx(wir_r, sut), 0);
      u2_weak gat = u2_nk_soft(wir_r, von, hoc);
      u2_weak cor = u2_rl_molt(wir_r, gat, u2_cv_sam_2, cog,
                                           u2_cv_sam_3, u2_rx(wir_r, hyp), 0);

      if ( (u2_none == j2_mcj(Pt6, ut, busk)[0].xip) ) {
        u2_noun xip = u2_ds_find(wir_r, cor);
     
        c3_assert(u2_none != xip);
        j2_mcj(Pt6, ut, busk)[0].xip = xip;
      }
      u2_rl_lose(wir_r, gat);
      return cor;
    }
  }

  u2_noun                                                         //  transfer
  j2_mcy(Pt6, ut, busk)(u2_wire wir_r,
                        u2_noun van,                              //  retain
                        u2_noun sut,                              //  retain
                        u2_noun cog,                              //  retain
                        u2_noun hyp)                              //  retain
  {
    u2_ho_jet *jet_j = &j2_mcj(Pt6, ut, busk)[0];

    if ( (jet_j->sat_s & u2_jet_live) && !(jet_j->sat_s & u2_jet_test) ) {
      return j2_mcx(Pt6, ut, busk)(wir_r, van, sut, cog, hyp);
    }
    else {
      u2_noun cor, fol, pro;

      cor = j2_mci(Pt6, ut, busk)(wir_r, van, sut, cog, hyp);
      fol = u2_h(cor);

      pro = u2_ho_use(wir_r, jet_j, cor, fol);
      if ( u2_none == pro ) return u2_bl_bail(wir_r, c3__fail);

      u2_rz(wir_r, cor);
      u2_rz(wir_r, fol);

      return pro;
    }
  }

  u2_weak
  j2_mck(Pt6, ut, busk)(u2_wire wir_r,
                        u2_noun cor)
  {
    u2_noun sut, hyp, van;

    if ( (u2_no == u2_mean(cor, u2_cv_sam_3, &hyp, u2_cv_con, &van, &hyp, 0)) ||
         (u2_none == (sut = u2_frag(u2_cv_sam, van))) )
    {
      return u2_none;
    } else {
      return u2_rc(wir_r, u2_rx(wir_r, sut), u2_rx(wir_r, hyp));
    }
  }

/* structures
*/
  u2_ho_jet 
  j2_mcj(Pt6, ut, busk)[] = {
    { ".2", c3__hevy, 
        j2_mc(Pt6, ut, busk), 
        Tier6_b_memo,
        u2_none, u2_none,
        j2_mck(Pt6, ut, busk), c3__busk,
    },
    { }
  };