/* Copyright 2006 iTuner Corporation */
/* npavel@ituner.com */

#include <Python.h>

// #include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>

#include <time.h>

#include "usblcd.h"
#include "widgets.h"
#include "usblcd_util.h"

static usblcd_operations *mylcd;

static PyObject * usblcd_open(PyObject *self, PyObject *args)
{
    /* init hid device and usblcd_operations structure */
    mylcd = new_usblcd_operations();
    /* set hid debug level */
    mylcd->hid->debug(0);
    /* set usblcd debug level */
    mylcd->debug(0);
    /* init the USB LCD */
    mylcd->init(mylcd);
    /* set default cursor */
    mylcd->set_cursor(mylcd, 0);    
    /* set default non blink cursor */
    mylcd->set_cursor_blink(mylcd, 0);    
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_close(PyObject *self, PyObject *args)
{
    mylcd->close(mylcd);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_backlight(PyObject *self, PyObject *args)
{
    int value;
    if (!PyArg_ParseTuple(args, "i", &value))
        return NULL;
    mylcd->backlight(mylcd, value);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_contrast(PyObject *self, PyObject *args)
{
    int value;
    if (!PyArg_ParseTuple(args, "i", &value))
        return NULL;
    mylcd->contrast(mylcd, value);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_text(PyObject *self, PyObject *args)
{
    int row;
    int column;
    char *text;
     if (!PyArg_ParseTuple(args, "iis", &row, &column, &text))
        return NULL;
    mylcd->settext(mylcd, row, column, text);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_led(PyObject *self, PyObject *args)
{
    int led;
    int state;
    if (!PyArg_ParseTuple(args, "ii", &led, &state))   
        return NULL;
    mylcd->setled(mylcd, led, state);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_clear(PyObject *self, PyObject *args)
{
    mylcd->clear(mylcd);
    return Py_BuildValue("i", 0);
}

static PyObject * usblcd_read(PyObject *self, PyObject *args)
{
    unsigned int key =0;
    unsigned int state;
    mylcd->keyevents(mylcd, &key, &state);
    return Py_BuildValue("i", key);
}
/*
	if (strncmp(s, "histo", 5) == 0) {
	    histo_opts options;
	    int values[64],i;
	    srand((unsigned)time(0));
 
	    // left to right histo with text
	    options.width = 20;
	    options.height = 2;
	    options.orientation = 0;  
	    options.valuetype = 0;
	    options.barwidth = 5;
	    options.barspacing = 0;
	    for (i=0;i<64;i++) values[i] = (int)(16*(rand()/(RAND_MAX+1.0)));
	    histo(mylcd, 0, 0, options, 20, values);

	}
	
	if (strncmp(s, "smallhisto", 10) == 0) {
	    histo_opts options;
	    int values[64],i;
	    srand((unsigned)time(0));
 
	    // left to right histo with text
	    options.width = 4;
	    options.height = 2;
	    options.orientation = 0;  
	    options.valuetype = 0;
	    options.barwidth = 1;
	    options.barspacing = 0;
	    for (i=0;i<64;i++) values[i] = (int)(16*(rand()/(RAND_MAX+1.0)));
	    histo(mylcd, 0, 0, options, 20, values);

	}
	
	

	arg++;
    }

//    mylcd->setchar(mylcd, 0, 1, 255);    


    mylcd->setfont(mylcd,"../doc/examples/bigfonts/mail.fnt");
    mylcd->setchar(mylcd, 0, 0, 0); 
    mylcd->setchar(mylcd, 1, 0, 1); 
    
    mylcd->setchar(mylcd, 0, 1, 2); 
    mylcd->setchar(mylcd, 1, 1, 3); 
    
    mylcd->setchar(mylcd, 0, 2, 4); 
    mylcd->setchar(mylcd, 1, 2, 5); 
    
    mylcd->setchar(mylcd, 0, 3, 6); 
    mylcd->setchar(mylcd, 1, 3, 7); 
*/

static PyMethodDef usblcdMethods[] = {
    {"open",  usblcd_open, METH_VARARGS, "Open usb connection."},
    {"close",  usblcd_close, METH_VARARGS, "Close usb connection."},
    {"backlight",  usblcd_backlight, METH_VARARGS, "Set backlight status."},
    {"contrast",  usblcd_contrast, METH_VARARGS, "Set display contrast."},
    {"text",  usblcd_text, METH_VARARGS, "Set display text."},
    {"led",  usblcd_led, METH_VARARGS, "Set LED status."},
    {"clear",  usblcd_clear, METH_VARARGS, "Clear display."},
    {"read",  usblcd_read, METH_VARARGS, "Read button status."},
    {NULL, NULL, 0, NULL}        /* Sentinel */
};

PyMODINIT_FUNC
initusblcd(void)
{
    (void) Py_InitModule("usblcd", usblcdMethods);
}