/* 
    ptrnt - print labels on linux
    Copyright (C) 2025  Moritz Martinius

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.

 */

#pragma once

#include <cstdint>
#include <map>
#include <string>
#include <vector>

constexpr const char* DEFAULT_FONT_FAMILY = "sans";
constexpr const double DEFAULT_FONT_SIZE  = 32.0;

enum class HAlignPosition {
    UNKNOWN = 0,
    LEFT    = 1,
    CENTER  = 2,
    RIGHT   = 3,
    JUSTIFY = 4,
};
const std::map<std::string, HAlignPosition> HALignPositionMap{{"", HAlignPosition::UNKNOWN},
                                                              {"left", HAlignPosition::LEFT},
                                                              {"center", HAlignPosition::CENTER},
                                                              {"right", HAlignPosition::RIGHT},
                                                              {"justify", HAlignPosition::JUSTIFY}};

enum class VAlignPosition {
    UNKNOWN = 0,
    TOP     = 1,
    MIDDLE  = 2,
    BOTTOM  = 3,
};

const std::map<std::string, VAlignPosition> VALignPositionMap{{"", VAlignPosition::UNKNOWN},
                                                              {"top", VAlignPosition::TOP},
                                                              {"middle", VAlignPosition::MIDDLE},
                                                              {"bottom", VAlignPosition::BOTTOM}};

struct PrintableText {
    std::string text{""};
    std::string fontFamily{DEFAULT_FONT_FAMILY};
    double fontSize{DEFAULT_FONT_SIZE};
    HAlignPosition hAlign{HAlignPosition::LEFT};
    VAlignPosition vAlign{VAlignPosition::MIDDLE};
};

namespace ptprnt::graphics {
class ILabel {
   public:
    virtual ~ILabel() = default;

    virtual bool create(PrintableText printableText)     = 0;
    virtual bool create(const std::string& labelText)    = 0;
    virtual std::vector<uint8_t> getRaw() const          = 0;
    virtual int getWidth() const                         = 0;
    virtual int getHeight() const                        = 0;

    virtual void setText(const std::string& text)             = 0;
    virtual void setFontSize(const double fontSize)           = 0;
    virtual void setFontFamily(const std::string& fontFamily) = 0;
    virtual void setHAlign(HAlignPosition hpos)               = 0;
    virtual void setVAlign(VAlignPosition vpos)               = 0;

    /**
     * @brief Append another label horizontally with spacing
     * @param other The label to append
     * @param spacingPx Spacing between labels in pixels (default: 60px ~5mm at 300dpi)
     * @return true on success, false if heights don't match
     */
    virtual bool append(const ILabel& other, uint32_t spacingPx = 60) = 0;
};
}  // namespace ptprnt::graphics