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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2014 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "text.h"
#include "container.h"

#include "../common/context.h"
#include "../common/document.h"

UIWIDGET ui_textarea(UiObject *obj, UiText *value) {
    QTextDocument *txtdoc = value && value->obj ? (QTextDocument*)value->obj : new QTextDocument();
    
    if(value) {
        if(value->value && value->obj) {
            QString str = QString::fromUtf8(value->value);
            txtdoc->setPlainText(str);
        }
        
        value->get = ui_textarea_get;
        value->set = ui_textarea_set;
        value->getsubstr = ui_textarea_getsubstr;
        value->insert = ui_textarea_insert;
        value->setposition = ui_textarea_setposition;
        value->position = ui_textarea_position;
        value->selection = ui_textarea_selection;
        value->length = ui_textarea_length;
        value->remove = ui_textarea_remove;
        value->obj = txtdoc;
        value->value = NULL;
    }
    
    UiContainer *ct = uic_get_current_container(obj); 
    QTextEdit *textedit = new QTextEdit();
    textedit->setDocument(txtdoc);
    ct->add(textedit, true);
    
    return textedit;
}

UIWIDGET ui_textarea_nv(UiObject *obj, char *varname) {
    UiVar *var = uic_connect_var(obj->ctx, varname, UI_VAR_TEXT);
    if(var) {
        UiText *value = (UiText*)var->value;
        return ui_textarea(obj, value);
    } else {
        // TODO: error
    }
    return NULL;
}


char* ui_textarea_get(UiText *text) {
    if(text->value) {
        free(text->value);
    }
    
    QTextDocument *doc = (QTextDocument*)text->obj;
    QString str = doc->toPlainText();
    QByteArray array = str.toLocal8Bit();
    const char *cstr = array.constData();
    
    if(text->value) {
        free(text->value);
    }
    text->value = strdup(cstr);
    return text->value;
}

void ui_textarea_set(UiText *text, char *str) {
    // set text
    QTextDocument *doc = (QTextDocument*)text->obj;
    QString qstr = QString::fromUtf8(str);
    doc->setPlainText(qstr);
    // cleanup
    if(text->value) {
        free(text->value);
    }
    text->value = NULL;
}

char* ui_textarea_getsubstr(UiText *text, int begin, int end) {
    QTextDocument *doc = (QTextDocument*)text->obj;
    return NULL; // TODO
}

void ui_textarea_insert(UiText *text, int pos, char *str) {
    QTextDocument *doc = (QTextDocument*)text->obj;
}

void ui_textarea_setposition(UiText *text, int pos) {
    // TODO
}

int ui_textarea_position(UiText *text) {
    QTextDocument *doc = (QTextDocument*)text->obj;
    return 0; // TODO
}

void ui_textarea_selection(UiText *text, int *begin, int *end) {
    QTextDocument *doc = (QTextDocument*)text->obj;
}

int ui_textarea_length(UiText *text) {
    QTextDocument *doc = (QTextDocument*)text->obj;
    return 0; // TODO
}

void ui_textarea_remove(UiText *text, int begin, int end) {
    QTextDocument *doc = (QTextDocument*)text->obj;
}


/* ------------------- TextField ------------------- */

UIWIDGET ui_textfield(UiObject *obj, UiString *value) {
    QLineEdit *textfield = new QLineEdit();
    
    UiContainer *ct = uic_get_current_container(obj);
    ct->add(textfield, false);
    
    if(value) {
        if(value->value) {
            QString str = QString::fromUtf8(value->value);
            textfield->setText(str);
            free(value->value);
            value->value = NULL;
        }
        value->set = ui_textfield_set;
        value->get = ui_textfield_get;
        value->obj = textfield;
    }
    
    return textfield;
}

UIWIDGET ui_textfield_nv(UiObject *obj, char *varname) {
    UiVar *var = uic_connect_var(obj->ctx, varname, UI_VAR_STRING);
    if(var) {
        UiString *value = (UiString*)var->value;
        return ui_textfield(obj, value);
    } else {
        // TODO: error
    }
    return NULL;
}

char* ui_textfield_get(UiString *str) {
    QLineEdit *textfield = (QLineEdit*)str->obj;
    QString qstr = textfield->text();
    
    if(str->value) {
        free(str->value);
    }
    QByteArray array = qstr.toLocal8Bit();
    const char *cstr = array.constData();
    str->value = strdup(cstr);
    
    return str->value;
}

void ui_textfield_set(UiString *str, char *value) {
    QLineEdit *textfield = (QLineEdit*)str->obj;
    QString qstr = QString::fromUtf8(value);
    textfield->setText(qstr);
    
    if(str->value) {
        free(str->value);
    }
    str->value = NULL;
}