#include "plugin.h"

PLUGIN_HEADER
static struct plugin_api* rb;


struct ButtonItem {
    int button_code;
    int ret_code;
    int pre_button_relative_index;
} ;
enum {
    ACTION_UNUSED = -1,
    ACTION_NONE = 0,
    ACTION_UP,
    ACTION_DOWN,
    ACTION_LEFT,
    ACTION_RIGHT,
    ACTION_SELECT,
    ACTION_MENU,
};
static struct ButtonItem standard_buttons
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
    (CONFIG_KEYPAD == IRIVER_H300_PAD)
    [6/* button count*/] =
    {
        {BUTTON_UP,ACTION_UP,0},
        {BUTTON_DOWN,ACTION_DOWN,0},
        {BUTTON_LEFT,ACTION_LEFT,0},
        {BUTTON_RIGHT,ACTION_RIGHT,0},
        {BUTTON_SELECT,ACTION_SELECT,0},
        {BUTTON_MODE,ACTION_MENU,0},
#endif
    }; /* static struct ButtonItem standard_buttons */

int read_button(struct ButtonItem *items, int button_count, int timeout)
{
    static int last_button = BUTTON_NONE;
    static struct ButtonItem *last_button_list = NULL;
    static int last_i = 0;
    int button;
    int i=0;
    int ret;
    if (timeout)
        button = rb->button_get_w_tmo(timeout);
    else button = rb->button_get(1);
    if (button == BUTTON_NONE || button == SYS_USB_CONNECTED)
    {
        last_button = button;
        last_i=0;
        last_button_list = NULL;
        return button;
    }
    if ((last_button == button) && (items == last_button_list))
        i = last_i;

    ret = BUTTON_NONE; /* in case the button is not in the list */
    while (i<button_count)
    {
        if (items[i].button_code == button)
        {
            if (items[i].pre_button_relative_index)
            {
                if ((items[i-items[i].pre_button_relative_index].button_code == last_button) ||
                     (items[i-items[i].pre_button_relative_index].button_code == BUTTON_NONE) ||
                     (items[i].button_code == last_button))
                {
                    ret = items[i].ret_code;
                    break;
                }
            }
            else
            {
                ret = items[i].ret_code;
                break;
            }
        }
        i++;
    }
    last_i = i;
    last_button = button;
    last_button_list = items;
    return ret;
}

/* this is the plugin entry point */
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
    static struct ButtonItem buttons[5] =
    {{ BUTTON_SELECT, -1, 0 }, // _pre
    { BUTTON_SELECT|BUTTON_REL, 1, 1 }, // short press
    { BUTTON_SELECT|BUTTON_REPEAT, 2, 2 }, // long press
    { BUTTON_SELECT|BUTTON_LEFT, 3, 0 }, // combo short press
    { BUTTON_SELECT|BUTTON_LEFT|BUTTON_REPEAT, 4, 1 }, // combo long press
    };

    rb = api;
    while (1)
    {
        switch (read_button(buttons,5,0))
        {
            case 1:
                DEBUGF("SHORT PRESS\n");
                break;
            case 2:
                DEBUGF("LONG PRESS\n");
                break;
            case 3:
                DEBUGF("COMBO SHORT PRESS\n");
                break;
            case 4:
                DEBUGF("COMBO LONG PRESS\n");
                break;
            default:
                break;

        }
    }


    return PLUGIN_OK;
}