/* Copyright (C) 2011, 2012 Mihael Koep <koep@softwareschneiderei.de>
   (Softwareschneiderei GmbH)

   This library is free software; you can redistribute it and/or modify it
   under the terms of the GNU Lesser General Public License as published by the
   Free Software Foundation; either version 2.1 of the License, or (at your
   option) any later version.

   This library is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
   details.

   You should have received a copy of the GNU Lesser General Public License along
   with this library; if not, write to the Free Software Foundation, Inc., 51
   Franklin St, Fifth Floor, Boston, MA 02110, USA */

#include "uca-camera.h"
#include "uca-dexela-camera.h"
#include "uca-enums.h"
#include "dexela_api.h"

#define UCA_DEXELA_CAMERA_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), UCA_TYPE_DEXELA_CAMERA, UcaDexelaCameraPrivate))

G_DEFINE_TYPE(UcaDexelaCamera, uca_dexela_camera, UCA_TYPE_CAMERA)
/**
 * UcaDexelaCameraError:
 * @UCA_DEXELA_CAMERA_ERROR_LIBDEXELA_INIT: Initializing libdexela failed
 */
GQuark uca_dexela_camera_error_quark()
{
    return g_quark_from_static_string("uca-dexela-camera-error-quark");
}

enum {
    N_PROPERTIES = N_BASE_PROPERTIES,
};

static gint base_overrideables[] = {
    PROP_NAME,
    PROP_SENSOR_WIDTH,
    PROP_SENSOR_HEIGHT,
    PROP_SENSOR_BITDEPTH,
    PROP_SENSOR_HORIZONTAL_BINNING,
    PROP_SENSOR_HORIZONTAL_BINNINGS,
    PROP_SENSOR_VERTICAL_BINNING,
    PROP_SENSOR_VERTICAL_BINNINGS,
    PROP_SENSOR_MAX_FRAME_RATE,
    PROP_EXPOSURE_TIME,
    PROP_TRIGGER_MODE,
    PROP_ROI_X,
    PROP_ROI_Y,
    PROP_ROI_WIDTH,
    PROP_ROI_HEIGHT,
    PROP_ROI_WIDTH_MULTIPLIER,
    PROP_ROI_HEIGHT_MULTIPLIER,
    PROP_HAS_STREAMING,
    PROP_HAS_CAMRAM_RECORDING,
    0
};

static GParamSpec *dexela_properties[N_PROPERTIES] = { NULL, };

static const gdouble MICROS_TO_SECONDS_FACTOR = 10e6d;

struct _UcaDexelaCameraPrivate {
    GValueArray *binnings;
};

/**
 * Hardcode possible binnings for now
 */
static void fill_binnings(UcaDexelaCameraPrivate *priv)
{
    GValue val = {0};
    g_value_init(&val, G_TYPE_UINT);

    priv->binnings = g_value_array_new(3);
    g_value_set_uint(&val, 1);
    g_value_array_append(priv->binnings, &val);
    g_value_set_uint(&val, 2);
    g_value_array_append(priv->binnings, &val);
    g_value_set_uint(&val, 4);
    g_value_array_append(priv->binnings, &val);
}

static gboolean is_binning_allowed(UcaDexelaCameraPrivate *priv, guint binning)
{
    for (int i = 0; i < priv->binnings->n_values; i++) {
        guint allowedBinning = g_value_get_uint(g_value_array_get_nth(priv->binnings, i));
        if (binning == allowedBinning) {
            return TRUE;
        }
    }
    return FALSE;
}

UcaDexelaCamera *uca_dexela_camera_new(GError **error)
{
    UcaDexelaCamera *camera = g_object_new(UCA_TYPE_DEXELA_CAMERA, NULL);
    UcaDexelaCameraPrivate *priv = UCA_DEXELA_CAMERA_GET_PRIVATE(camera);
    fill_binnings(priv);
    /*
    * Here we override property ranges because we didn't know them at property
    * installation time.
    */
    GObjectClass *camera_class = G_OBJECT_CLASS (UCA_CAMERA_GET_CLASS (camera));
    // TODO implement error checking
    openDetector("/usr/share/dexela/dexela-1207_32.fmt");
    initSerialConnection();
    return camera;
}

static void uca_dexela_camera_get_property(GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
{
    UcaDexelaCameraPrivate *priv = UCA_DEXELA_CAMERA_GET_PRIVATE(object);

    switch (property_id) {
        case PROP_NAME:
        {
            gchar* model = getModel();
            g_value_set_string(value, g_strdup_printf("Dexela %s", model));
            g_free(model);
            break;
        }
        case PROP_EXPOSURE_TIME:
        {
            g_value_set_double(value, getExposureTimeMicros() / MICROS_TO_SECONDS_FACTOR);
            break;
        }
        case PROP_HAS_CAMRAM_RECORDING:
        {
            g_value_set_boolean(value, FALSE);
            break;
        }
        case PROP_HAS_STREAMING:
        {
            g_value_set_boolean(value, FALSE);
            break;
        }
        case PROP_SENSOR_BITDEPTH:
        {
            g_value_set_uint(value, getBitDepth());
            break;
        }
        case PROP_SENSOR_WIDTH:
        {
            g_value_set_uint(value, getWidth());
            break;
        }
        case PROP_SENSOR_HEIGHT:
        {
            g_value_set_uint(value, getHeight());
            break;
        }
        case PROP_SENSOR_HORIZONTAL_BINNING:
        {
            g_value_set_uint(value, getBinningModeHorizontal());
            break;
        }
        case PROP_SENSOR_HORIZONTAL_BINNINGS:
        {
            g_value_set_boxed(value, priv->binnings);
            break;
        }
        case PROP_SENSOR_VERTICAL_BINNING:
        {
            g_value_set_uint(value, getBinningModeVertical());
            break;
        }
        case PROP_SENSOR_VERTICAL_BINNINGS:
        {
            g_value_set_boxed(value, priv->binnings);
            break;
        }
        default:
        {
            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
            break;
        }
    }
}

static void uca_dexela_camera_set_property(GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
{
    UcaDexelaCameraPrivate *priv = UCA_DEXELA_CAMERA_GET_PRIVATE(object);

    switch (property_id) {
        case PROP_EXPOSURE_TIME:
        {
            const gdouble exposureTimeInSeconds = g_value_get_double(value);
            setExposureTimeMicros(exposureTimeInSeconds * MICROS_TO_SECONDS_FACTOR);
            break;
        }
        case PROP_SENSOR_HORIZONTAL_BINNING:
        {
            const guint horizontalBinning = g_value_get_uint(value);
            if (!is_binning_allowed(priv, horizontalBinning)) {
                g_warning("Tried to set illegal horizontal binning: %d", horizontalBinning);
                return;
            }
            setBinningMode(horizontalBinning, getBinningModeVertical());
            break;
        }
        case PROP_SENSOR_VERTICAL_BINNING:
        {
            const guint verticalBinning = g_value_get_uint(value);
            if (!is_binning_allowed(priv, verticalBinning)) {
                g_warning("Tried to set illegal vertical binning: %d", verticalBinning);
                return;
            }
            setBinningMode(getBinningModeHorizontal(), verticalBinning);
            break;
        }
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
            return;
    }
}

static void uca_dexela_camera_start_recording(UcaCamera *camera, GError **error)
{
    g_debug("start recording called");
}

static void uca_dexela_camera_stop_recording(UcaCamera *camera, GError **error)
{
    g_debug("stop recording called");
}

static void uca_dexela_camera_start_readout(UcaCamera *camera, GError **error)
{
    g_debug("start readout called");
}

static void uca_dexela_camera_trigger(UcaCamera *camera, GError **error)
{
    g_debug("trigger called");
}

static void uca_dexela_camera_grab(UcaCamera *camera, gpointer *data, GError **error)
{
    g_debug("grab called");
}

static void uca_dexela_camera_finalize(GObject *object)
{
    //UcaDexelaCameraPrivate *priv = UCA_DEXELA_CAMERA_GET_PRIVATE(object);
    G_OBJECT_CLASS(uca_dexela_camera_parent_class)->finalize(object);
}

static void uca_dexela_camera_class_init(UcaDexelaCameraClass *klass)
{
    GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
    gobject_class->set_property = uca_dexela_camera_set_property;
    gobject_class->get_property = uca_dexela_camera_get_property;
    gobject_class->finalize = uca_dexela_camera_finalize;

    UcaCameraClass *camera_class = UCA_CAMERA_CLASS(klass);
    camera_class->start_recording = uca_dexela_camera_start_recording;
    camera_class->stop_recording = uca_dexela_camera_stop_recording;
    camera_class->start_readout = uca_dexela_camera_start_readout;
    camera_class->trigger = uca_dexela_camera_trigger;
    camera_class->grab = uca_dexela_camera_grab;

    for (guint i = 0; base_overrideables[i] != 0; i++) {
        g_object_class_override_property(gobject_class, base_overrideables[i], uca_camera_props[base_overrideables[i]]);
    }
    for (guint id = N_BASE_PROPERTIES; id < N_PROPERTIES; id++) {
        g_object_class_install_property(gobject_class, id, dexela_properties[id]);
    }
    g_type_class_add_private(klass, sizeof(UcaDexelaCameraPrivate));
}

static void uca_dexela_camera_init(UcaDexelaCamera *self)
{
    self->priv = UCA_DEXELA_CAMERA_GET_PRIVATE(self);
}