#!/usr/bin/env python3

import easymacro as app


ID_EXTENSION = ''
_ = None



def _replace_styles():
    dlg = _create_dialog_replace_styles()
    dlg.open()
    return


class Controllers(object):

    def __init__(self, dlg):
        self.d = dlg

    @app.catch_exception
    def cmd_replace_by_paragraph_action(self, event):
        source = self.d.lst_paragraph_source.value
        target = self.d.lst_paragraph_target.value

        if not source:
            msg = _('Select style source')
            app.errorbox(msg)
            return
        if not target:
            msg = _('Select style target')
            app.errorbox(msg)
            return
        if source == target:
            msg = _('Select different styles')
            app.errorbox(msg)
            return

        msg = _('Replace selected styles?')
        if not app.question(msg):
            return

        doc = app.active
        i = 0
        for p in doc.paragraphs:
            if not p.is_paragraph:
                continue
            if p.style == source:
                p.style = target
                i += 1

        self.d.close()
        app.debug(f'{i} replaces')
        return

    def cmd_close_action(self, event):
        self.d.close()
        return


def _create_dialog_replace_styles():
    args = {
        'Name': 'dialog',
        'Title': _('Replace Styles'),
        'Width': 220,
        'Height': 100,
    }
    dlg = app.create_dialog(args)
    dlg.id = ID_EXTENSION
    dlg.events = Controllers

    args = {
        'Type': 'Label',
        'Name': 'lbl_paragraphs',
        'Label': _('~Replace by paragraph'),
        'Width': 70,
        'Height': 15,
        'X': 10,
        'Y': 10,
    }
    dlg.add_control(args)

    args = {
        'Type': 'ListBox',
        'Name': 'lst_paragraph_source',
        'Width': 85,
        'Height': 15,
        'Dropdown': True,
    }
    dlg.add_control(args)

    args = {
        'Type': 'ListBox',
        'Name': 'lst_paragraph_target',
        'Width': 85,
        'Height': 15,
        'Dropdown': True,
    }
    dlg.add_control(args)

    args = {
        'Type': 'Button',
        'Name': 'cmd_replace_by_paragraph',
        'Width': 15,
        'Height': 15,
        'ImageURL': 'replace.svg',
        'ImagePosition': 1,
    }
    dlg.add_control(args)

    args = {
        'Type': 'Button',
        'Name': 'cmd_close',
        'Label': _('~Close'),
        'Width': 70,
        'Height': 20,
        'ImageURL': 'close.svg',
        'ImagePosition': 1,
    }
    dlg.add_control(args)

    dlg.lst_paragraph_source.move(dlg.lbl_paragraphs)
    dlg.lst_paragraph_target.move(dlg.lst_paragraph_source, 5, 0)
    dlg.cmd_replace_by_paragraph.move(dlg.lst_paragraph_target, 5, 0)
    dlg.cmd_close.move(dlg.lst_paragraph_source, 0, 20)
    dlg.cmd_close.center()

    doc = app.active
    styles = doc.styles['Paragraph'].names
    dlg.lst_paragraph_source.data = styles
    dlg.lst_paragraph_target.data = styles

    return dlg


@app.catch_exception
def run(args, path_locales):
    global _

    _ = app.install_locales(path_locales)

    if args == 'replacestyles':
        _replace_styles()

    return