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/* markam -- Store/retrieve/manage bookmarks
   Copyright (C) 2012,2013  Tom Willemsen <tom at ryuslash dot org>

   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 <http://www.gnu.org/licenses/>.
 */
/// Commentary:

// A wrapper script that should allow conkeror to interface with
// markam.  Does not yet allow searching through collected bookmarks,
// only adding new ones.

/// Code:

define_variable("markam_program", "markam",
                "The location of the markam executable.");

define_browser_object_class(
    "markam-bookmark", null,
    function (I, prompt) {
        check_buffer(I.buffer, content_buffer);
        var result = yield I.buffer.window.minibuffer.read(
            $prompt = prompt, $completer = markam_complete
        );
        yield co_return(result);
    }
);

function markam_add_url(I, url, title)
{   // Add URL to markam, ask for a title (provide TITLE as a
    // default), description and any number of tags.
    let url_string = load_spec_uri_string(load_spec(url));
    let title = yield I.minibuffer.read($prompt="name (required): ",
                                        $initial_value=title);
    let description = yield I.minibuffer.read(
        $prompt="extended description: "
    );
    let tags = yield I.minibuffer.read(
        $prompt="tags (comma delimited): "
    );
    let command = markam_program + ' "' + url_string + '" "' + title
            + '" "' + description + '" \''
            + tags.split(',').map(function (str)
                                  { return str.trim(); }).join("' '")
            + "'";
    yield shell_command(command);
}

function markam_add(I) {
    check_buffer(I.buffer, content_buffer);
    let result = yield markam_add_url(I, I.buffer.top_frame,
                                        I.buffer.title);

    if (!result)
        I.window.minibuffer.message('Added to markam');
    else
        I.window.minibuffer.message('Couldn\'t add to markam');
}
interactive("markam-add",
            "Bookmark the current page in markam",
            markam_add);

function markam_add_link(I) {
    check_buffer(I.buffer, content_buffer);
    bo = yield read_browser_object(I);
    let result = yield markam_add_url(I, encodeURIComponent(bo),
                                        bo.textContent);

    if (!result)
        I.window.minibuffer.message('Added to markam');
    else
        I.window.minibuffer.message('Couldn\'t add to markam');
}
interactive("markam-add-link",
            "Select and bookmark a link in markam",
            markam_add_link);

function markam_complete(input, pos, conservative)
{
    if (pos == 0 && conservative)
        yield co_return(undefined);

    let str = input.substring(0, pos);

    var data = "", error = "", ret = [];
    var result = yield shell_command(
        markam_program + " --script",
        $fds = [{ output: async_binary_string_writer("") },
                { input: async_binary_reader(function (s) data += s || "") },
                { input: async_binary_reader(function (s) error += s || "") }]);

    if (result != 0 || error != "")
        throw new interactive_exception("result: " + result +
                                        ", error: " + error);
    else if (data != "") {
        data.split('').forEach(function (row) {
            ret.push(row.split(''));
        });

        let c = { count: ret.length,
                  get_string: function (i) ret[i][0],
                  get_description: function (i) ret[i][1],
                  // get_value: function (i) ret[i][2],
                  get_input_state: function (i) [ret[i][2]] };
        yield co_return(c);
    }
}

interactive("markam-find-url",
            "Find a page from markam in the current buffer",
            "find-url",
            $browser_object = browser_object_markam_bookmark);
interactive("markam-find-url-new-buffer",
            "Find a page from markam in a new buffer",
            "find-url-new-buffer",
            $browser_object = browser_object_markam_bookmark);


provide("markam");