/*
  Copyright 2007-2016 David Robillard <d@drobilla.net>

  Permission to use, copy, modify, and/or distribute this software for any
  purpose with or without fee is hereby granted, provided that the above
  copyright notice and this permission notice appear in all copies.

  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#define _POSIX_C_SOURCE 200809L

#include "jalv_config.h"
#include "jalv_internal.h"

#include "lv2/log/log.h"
#include "lv2/urid/urid.h"

#ifdef HAVE_ISATTY
#  include <unistd.h>
#endif

#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>

void
jalv_print_control(Jalv* const              jalv,
                   const struct Port* const port,
                   const float              value)
{
  const LilvNode* sym = lilv_port_get_symbol(jalv->plugin, port->lilv_port);
  printf("%s = %f\n", lilv_node_as_string(sym), value);
}

char*
jalv_strdup(const char* const str)
{
  const size_t len  = strlen(str);
  char*        copy = (char*)malloc(len + 1);
  memcpy(copy, str, len + 1);
  return copy;
}

char*
jalv_strjoin(const char* const a, const char* const b)
{
  const size_t a_len = strlen(a);
  const size_t b_len = strlen(b);
  char* const  out   = (char*)malloc(a_len + b_len + 1);

  memcpy(out, a, a_len);
  memcpy(out + a_len, b, b_len);
  out[a_len + b_len] = '\0';

  return out;
}

int
jalv_printf(LV2_Log_Handle handle, LV2_URID type, const char* fmt, ...)
{
  va_list args;
  va_start(args, fmt);
  const int ret = jalv_vprintf(handle, type, fmt, args);
  va_end(args);
  return ret;
}

int
jalv_vprintf(LV2_Log_Handle handle, LV2_URID type, const char* fmt, va_list ap)
{
  // TODO: Lock
  Jalv* jalv  = (Jalv*)handle;
  bool  fancy = true;
  if (type == jalv->urids.log_Trace && jalv->opts.trace) {
    jalv_ansi_start(stderr, 32);
    fprintf(stderr, "trace: ");
  } else if (type == jalv->urids.log_Error) {
    jalv_ansi_start(stderr, 31);
    fprintf(stderr, "error: ");
  } else if (type == jalv->urids.log_Warning) {
    jalv_ansi_start(stderr, 33);
    fprintf(stderr, "warning: ");
  } else {
    fancy = false;
  }

  const int st = vfprintf(stderr, fmt, ap);

  if (fancy) {
    jalv_ansi_reset(stderr);
  }

  return st;
}

bool
jalv_ansi_start(FILE* stream, int color)
{
#if defined(HAVE_ISATTY) && defined(HAVE_FILENO)
  if (isatty(fileno(stream))) {
    return fprintf(stream, "\033[0;%dm", color);
  }
#endif
  return 0;
}

void
jalv_ansi_reset(FILE* stream)
{
#ifdef HAVE_ISATTY
  if (isatty(fileno(stream))) {
    fprintf(stream, "\033[0m");
    fflush(stream);
  }
#endif
}