// Copyright (c) 2005-2010, Niels Martin Hansen
// Copyright (c) 2005-2010, Rodrigo Braz Monteiro
// Copyright (c) 2010, Amar Takhar
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * 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.
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//     may be used to endorse or promote products derived from this software
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// Aegisub Project http://www.aegisub.org/
//
// $Id$

/// @file edit.cpp
/// @brief edit/ commands.
/// @ingroup command
///

#include "../config.h"

#ifndef AGI_PRE
#endif

#include "command.h"

#include "../ass_file.h"
#include "../dialog_search_replace.h"
#include "../include/aegisub/context.h"
#include "../subs_edit_box.h"
#include "../subs_edit_ctrl.h"
#include "../subs_grid.h"
#include "../video_context.h"

namespace cmd {
/// @defgroup cmd-edit Editing commands.
/// @{


/// Copy subtitles.
struct edit_line_copy : public Command {
	CMD_NAME("edit/line/copy")
	STR_MENU("Copy Lines")
	STR_DISP("Copy Lines")
	STR_HELP("Copy subtitles.")

	void operator()(agi::Context *c) {
		if (c->parent->FindFocus() == c->editBox->TextEdit) {
			c->editBox->TextEdit->Copy();
			return;
		}
		c->subsGrid->CopyLines(c->subsGrid->GetSelection());
	}
};


/// Cut subtitles.
struct edit_line_cut: public Command {
	CMD_NAME("edit/line/cut")
	STR_MENU("Cut Lines")
	STR_DISP("Cut Lines")
	STR_HELP("Cut subtitles.")

	void operator()(agi::Context *c) {
		if (c->parent->FindFocus() == c->editBox->TextEdit) {
			c->editBox->TextEdit->Cut();
			return;
		}
		c->subsGrid->CutLines(c->subsGrid->GetSelection());
	}
};


/// Delete currently selected lines.
struct edit_line_delete : public Command {
	CMD_NAME("edit/line/delete")
	STR_MENU("Delete Lines")
	STR_DISP("Delete Lines")
	STR_HELP("Delete currently selected lines.")

	void operator()(agi::Context *c) {
		c->subsGrid->DeleteLines(c->subsGrid->GetSelection());
	}
};


/// Duplicate the selected lines.
struct edit_line_duplicate : public Command {
	CMD_NAME("edit/line/duplicate")
	STR_MENU("&Duplicate Lines")
	STR_DISP("Duplicate Lines")
	STR_HELP("Duplicate the selected lines.")

	void operator()(agi::Context *c) {
		wxArrayInt sels = c->subsGrid->GetSelection();
		c->subsGrid->DuplicateLines(sels.front(), sels.back(), false);
	}
};


/// Duplicate lines and shift by one frame.
struct edit_line_duplicate_shift : public Command {
	CMD_NAME("edit/line/duplicate/shift")
	STR_MENU("&Duplicate and Shift by 1 Frame")
	STR_DISP("Duplicate and Shift by 1 Frame")
	STR_HELP("Duplicate lines and shift by one frame.")

	void operator()(agi::Context *c) {
		wxArrayInt sels = c->subsGrid->GetSelection();
		c->subsGrid->DuplicateLines(sels.front(), sels.back(), true);
	}
};


/// Joins selected lines in a single one, as karaoke.
struct edit_line_join_as_karaoke : public Command {
	CMD_NAME("edit/line/join/as_karaoke")
	STR_MENU("As &Karaoke")
	STR_DISP("As Karaoke")
	STR_HELP("Joins selected lines in a single one, as karaoke.")

	void operator()(agi::Context *c) {
		wxArrayInt sels = c->subsGrid->GetSelection();
		c->subsGrid->JoinAsKaraoke(sels.front(), sels.back());
	}
};


/// Joins selected lines in a single one, concatenating text together.
struct edit_line_join_concatenate : public Command {
	CMD_NAME("edit/line/join/concatenate")
	STR_MENU("&Concatenate")
	STR_DISP("Concatenate")
	STR_HELP("Joins selected lines in a single one, concatenating text together.")

	void operator()(agi::Context *c) {
		wxArrayInt sels = c->subsGrid->GetSelection();
		c->subsGrid->JoinLines(sels.front(), sels.back(), true);
	}
};


/// Joins selected lines in a single one, keeping text of first and discarding remaining.
struct edit_line_join_keep_first : public Command {
	CMD_NAME("edit/line/join/keep_first")
	STR_MENU("Keep &First")
	STR_DISP("Keep First")
	STR_HELP("Joins selected lines in a single one, keeping text of first and discarding remaining.")

	void operator()(agi::Context *c) {
		wxArrayInt sels = c->subsGrid->GetSelection();
		c->subsGrid->JoinLines(sels.front(), sels.back(), false);
	}
};


/// Paste subtitles.
struct edit_line_paste : public Command {
	CMD_NAME("edit/line/paste")
	STR_MENU("Paste Lines")
	STR_DISP("Paste Lines")
	STR_HELP("Paste subtitles.")

	void operator()(agi::Context *c) {
		if (c->parent->FindFocus() == c->editBox->TextEdit) {
			c->editBox->TextEdit->Paste();
			return;
		}
		c->subsGrid->PasteLines(c->subsGrid->GetFirstSelRow());
	}
};


/// Paste subtitles over others.
struct edit_line_paste_over : public Command {
	CMD_NAME("edit/line/paste/over")
	STR_MENU("Paste Lines Over..")
	STR_DISP("Paste Lines Over")
	STR_HELP("Paste subtitles over others.")

	void operator()(agi::Context *c) {
		c->subsGrid->PasteLines(c->subsGrid->GetFirstSelRow(),true);
	}
};


/// Recombine subtitles when they have been split and merged.
struct edit_line_recombine : public Command {
	CMD_NAME("edit/line/recombine")
	STR_MENU("Recombine Lines")
	STR_DISP("Recombine Lines")
	STR_HELP("Recombine subtitles when they have been split and merged.")

	void operator()(agi::Context *c) {
		c->subsGrid->RecombineLines();
	}
};


/// Uses karaoke timing to split line into multiple smaller lines.
struct edit_line_split_by_karaoke : public Command {
	CMD_NAME("edit/line/split/by_karaoke")
	STR_MENU("Split Lines (by karaoke)")
	STR_DISP("Split Lines (by karaoke)")
	STR_HELP("Uses karaoke timing to split line into multiple smaller lines.")

	void operator()(agi::Context *c) {
		c->subsGrid->BeginBatch();
		wxArrayInt sels = c->subsGrid->GetSelection();
		bool didSplit = false;
		for (int i = sels.size() - 1; i >= 0; --i) {
			didSplit |= c->subsGrid->SplitLineByKaraoke(sels[i]);
		}
		if (didSplit) {
			c->ass->Commit(_("splitting"));
		}
		c->subsGrid->EndBatch();
	}
};


/// Swaps the two selected lines.
struct edit_line_swap : public Command {
	CMD_NAME("edit/line/swap")
	STR_MENU("Swap Lines")
	STR_DISP("Swap Lines")
	STR_HELP("Swaps the two selected lines.")

	void operator()(agi::Context *c) {
		SelectionController<AssDialogue>::Selection sel = c->selectionController->GetSelectedSet();
		if (sel.size() == 2) {
			using std::swap;
			swap(*sel.begin(), *sel.rbegin());
		}
	}
};


/// Redoes last action.
struct edit_redo : public Command {
	CMD_NAME("edit/redo")
	STR_MENU("&Redo")
	STR_DISP("Redo")
	STR_HELP("Redoes last action.")

	void operator()(agi::Context *c) {
		c->videoController->Stop();
		c->ass->Redo();
	}
};


/// Find and replace words in subtitles.
struct edit_search_replace : public Command {
	CMD_NAME("edit/search_replace")
	STR_MENU("Search and &Replace..")
	STR_DISP("Search and Replace")
	STR_HELP("Find and replace words in subtitles.")

	void operator()(agi::Context *c) {
		c->videoController->Stop();
		Search.OpenDialog(true);
	}
};


/// Undoes last action.
struct edit_undo : public Command {
	CMD_NAME("edit/undo")
	STR_MENU("&Undo")
	STR_DISP("Undo")
	STR_HELP("Undoes last action.")

	void operator()(agi::Context *c) {
		c->videoController->Stop();
		c->ass->Undo();
	}
};

/// @}

/// Init edit/ commands
void init_edit(CommandManager *cm) {
	cm->reg(new edit_line_copy());
	cm->reg(new edit_line_cut());
	cm->reg(new edit_line_delete());
	cm->reg(new edit_line_duplicate());
	cm->reg(new edit_line_duplicate_shift());
	cm->reg(new edit_line_join_as_karaoke());
	cm->reg(new edit_line_join_concatenate());
	cm->reg(new edit_line_join_keep_first());
	cm->reg(new edit_line_paste());
	cm->reg(new edit_line_paste_over());
	cm->reg(new edit_line_recombine());
	cm->reg(new edit_line_split_by_karaoke());
	cm->reg(new edit_line_swap());
	cm->reg(new edit_redo());
	cm->reg(new edit_search_replace());
	cm->reg(new edit_undo());
}

} // namespace cmd