search.py

                killthreads_full.append(k)  # do actual killing here?
        # TODO do the killing/ stopping here. remember threads might have finished inbetween.

        if self.stopped():
            utils.p('stopping search : ' + str(query))
            # utils.p('end search thread')

            return

        # this loop handles downloading of small thumbnails
        for imgpath, url in sml_thbs:
            if imgpath not in thumb_sml_download_threads and not os.path.exists(imgpath):
                thread = ThumbDownloader(url, imgpath)
                # thread = threading.Thread(target=download_thumbnail, args=([url, imgpath]),
                #                           daemon=True)
                thread.start()
                thumb_sml_download_threads[imgpath] = thread
                # threads.append(thread)

                if len(thumb_sml_download_threads) > maxthreads:
                    while len(thumb_sml_download_threads) > maxthreads:
                        threads_copy = thumb_sml_download_threads.copy()  # because for loop can erase some of the items.
                        for tk, thread in threads_copy.items():
                            if not thread.is_alive():
                                thread.join()
                                # utils.p(x)
                                del (thumb_sml_download_threads[tk])
                                # utils.p('fetched thumbnail ', i)
                                i += 1
        if self.stopped():
            utils.p('stopping search : ' + str(query))
            # utils.p('end search thread')

            return
        idx = 0
        while len(thumb_sml_download_threads) > 0:
            threads_copy = thumb_sml_download_threads.copy()  # because for loop can erase some of the items.
            for tk, thread in threads_copy.items():
                if not thread.is_alive():
                    thread.join()
                    del (thumb_sml_download_threads[tk])
                    i += 1

        if self.stopped():
            # utils.p('end search thread')

            utils.p('stopping search : ' + str(query))
            return

        # start downloading full thumbs in the end
        for imgpath, url in full_thbs:
            if imgpath not in thumb_full_download_threads and not os.path.exists(imgpath):
                thread = ThumbDownloader(url, imgpath)
                # thread = threading.Thread(target=download_thumbnail, args=([url, imgpath]),
                #                           daemon=True)
                thread.start()
                thumb_full_download_threads[imgpath] = thread
        # utils.p('end search thread')
        mt('thumbnails finished')


def build_query_common(query, props):
    '''add shared parameters to query'''
    query_common = {}
    if props.search_keywords != '':
        # keywords = urllib.parse.urlencode(props.search_keywords)
        keywords = props.search_keywords.replace('&','%26')
        query_common["query"] = keywords

    if props.search_verification_status != 'ALL' and utils.profile_is_validator():
        query_common['verification_status'] = props.search_verification_status.lower()

    if props.unrated_only and utils.profile_is_validator():
        query["quality_count"] = 0

    if props.search_file_size:
        query_common["files_size_gte"] = props.search_file_size_min * 1024 * 1024
        query_common["files_size_lte"] = props.search_file_size_max * 1024 * 1024

    query.update(query_common)


def build_query_model():
    '''use all search input to request results from server'''

    props = bpy.context.scene.blenderkit_models
    query = {
        "asset_type": 'model',
        # "engine": props.search_engine,
        # "adult": props.search_adult,
    }
    if props.search_style != 'ANY':
        if props.search_style != 'OTHER':
            query["model_style"] = props.search_style
        else:
            query["model_style"] = props.search_style_other

    # the 'free_only' parametr gets moved to the search command and is used for ordering the assets as free first
    # if props.free_only:
    #     query["is_free"] = True

    # if props.search_advanced:
    if props.search_condition != 'UNSPECIFIED':
        query["condition"] = props.search_condition
    if props.search_design_year:
        query["designYear_gte"] = props.search_design_year_min
        query["designYear_lte"] = props.search_design_year_max
    if props.search_polycount:
        query["faceCount_gte"] = props.search_polycount_min
        query["faceCount_lte"] = props.search_polycount_max
    if props.search_texture_resolution:
        query["textureResolutionMax_gte"] = props.search_texture_resolution_min
        query["textureResolutionMax_lte"] = props.search_texture_resolution_max

    build_query_common(query, props)

    return query


def build_query_scene():
    '''use all search input to request results from server'''

    props = bpy.context.scene.blenderkit_scene
    query = {
        "asset_type": 'scene',
        # "engine": props.search_engine,
        # "adult": props.search_adult,
    }
    build_query_common(query, props)
    return query


def build_query_HDR():
    '''use all search input to request results from server'''

    props = bpy.context.scene.blenderkit_HDR
    query = {
        "asset_type": 'hdr',
        # "engine": props.search_engine,
        # "adult": props.search_adult,
    }
    build_query_common(query, props)
    return query


def build_query_material():
    props = bpy.context.scene.blenderkit_mat
    query = {
        "asset_type": 'material',

    }
    # if props.search_engine == 'NONE':
    #     query["engine"] = ''
    # if props.search_engine != 'OTHER':
    #     query["engine"] = props.search_engine
    # else:
    #     query["engine"] = props.search_engine_other
    if props.search_style != 'ANY':
        if props.search_style != 'OTHER':
            query["style"] = props.search_style
        else:
            query["style"] = props.search_style_other
    if props.search_procedural == 'TEXTURE_BASED':
        # todo this procedural hack should be replaced with the parameter
        query["textureResolutionMax_gte"] = 0
        # query["procedural"] = False
        if props.search_texture_resolution:
            query["textureResolutionMax_gte"] = props.search_texture_resolution_min
            query["textureResolutionMax_lte"] = props.search_texture_resolution_max



    elif props.search_procedural == "PROCEDURAL":
        # todo this procedural hack should be replaced with the parameter
        query["files_size_lte"] = 1024 * 1024
        # query["procedural"] = True

    build_query_common(query, props)

    return query


def build_query_texture():
    props = bpy.context.scene.blenderkit_tex
    query = {
        "asset_type": 'texture',

    }

    if props.search_style != 'ANY':
        if props.search_style != 'OTHER':
            query["search_style"] = props.search_style
        else:
            query["search_style"] = props.search_style_other

    build_query_common(query, props)

    return query


def build_query_brush():
    props = bpy.context.scene.blenderkit_brush

    brush_type = ''
    if bpy.context.sculpt_object is not None:
        brush_type = 'sculpt'

    elif bpy.context.image_paint_object:  # could be just else, but for future p
        brush_type = 'texture_paint'

    query = {
        "asset_type": 'brush',

        "mode": brush_type
    }

    build_query_common(query, props)

    return query


def mt(text):
    global search_start_time, prev_time
    alltime = time.time() - search_start_time
    since_last = time.time() - prev_time
    prev_time = time.time()
    utils.p(text, alltime, since_last)


def add_search_process(query, params, orig_result):
    global search_threads

    while (len(search_threads) > 0):
        old_thread = search_threads.pop(0)
        old_thread[0].stop()
        # TODO CARE HERE FOR ALSO KILLING THE Thumbnail THREADS.?
        #  AT LEAST NOW SEARCH DONE FIRST WON'T REWRITE AN NEWER ONE
    tempdir = paths.get_temp_dir('%s_search' % query['asset_type'])
    headers = utils.get_headers(params['api_key'])

    if params['get_next']:
        urlquery = orig_result['next']
    if not params['get_next']:
        urlquery = query_to_url(query, params)

    thread = Searcher(query, params, orig_result, tempdir=tempdir, headers=headers, urlquery=urlquery)
    thread.start()

    search_threads.append([thread, tempdir, query['asset_type'], {}])  # 4th field is for results

    mt('search thread started')


def get_search_simple(parameters, filepath=None, page_size=100, max_results=100000000, api_key=''):
    '''
    Searches and returns the


    Parameters
    ----------
    parameters - dict of blenderkit elastic parameters
    filepath - a file to save the results. If None, results are returned
    page_size - page size for retrieved results
    max_results - max results of the search
    api_key - BlenderKit api key

    Returns
    -------
    Returns search results as a list, and optionally saves to filepath

    '''
    headers = utils.get_headers(api_key)
    url = paths.get_api_url() + 'search/'
    requeststring = url + '?query='
    for p in parameters.keys():
        requeststring += f'+{p}:{parameters[p]}'

    requeststring += '&page_size=' + str(page_size)
    bk_logger.debug(requeststring)
    response = rerequests.get(requeststring, headers=headers)  # , params = rparameters)
    # print(response.json())
    search_results = response.json()

    results = []
    results.extend(search_results['results'])
    page_index = 2
    page_count = math.ceil(search_results['count'] / page_size)
    while search_results.get('next') and len(results) < max_results:
        bk_logger.info(f'getting page {page_index} , total pages {page_count}')
        response = rerequests.get(search_results['next'], headers=headers)  # , params = rparameters)
        search_results = response.json()
        # print(search_results)
        results.extend(search_results['results'])
        page_index += 1

    if not filepath:
        return results

    with open(filepath, 'w', encoding='utf-8') as s:
        json.dump(results, s, ensure_ascii=False, indent=4)
    bk_logger.info(f'retrieved {len(results)} assets from elastic search')
    return results


def search(category='', get_next=False, author_id=''):
    ''' initialize searching'''
    global search_start_time
    user_preferences = bpy.context.preferences.addons['blenderkit'].preferences
    search_start_time = time.time()
    # mt('start')
    scene = bpy.context.scene
    ui_props = scene.blenderkitUI

    if ui_props.asset_type == 'MODEL':
        if not hasattr(scene, 'blenderkit'):
            return;
        props = scene.blenderkit_models
        query = build_query_model()

    if ui_props.asset_type == 'SCENE':
        if not hasattr(scene, 'blenderkit_scene'):
            return;
        props = scene.blenderkit_scene
        query = build_query_scene()

    if ui_props.asset_type == 'HDR':
        if not hasattr(scene, 'blenderkit_HDR'):
            return;
        props = scene.blenderkit_HDR
        query = build_query_HDR()

    if ui_props.asset_type == 'MATERIAL':
        if not hasattr(scene, 'blenderkit_mat'):
            return;

        props = scene.blenderkit_mat
        query = build_query_material()

    if ui_props.asset_type == 'TEXTURE':
        if not hasattr(scene, 'blenderkit_tex'):
            return;
        # props = scene.blenderkit_tex
        # query = build_query_texture()

    if ui_props.asset_type == 'BRUSH':
        if not hasattr(scene, 'blenderkit_brush'):
            return;
        props = scene.blenderkit_brush
        query = build_query_brush()

    # crop long searches
    if query.get('query'):
        if len(query['query']) > 50:
            query['query'] = strip_accents(query['query'])

        if len(query['query']) > 150:
            idx = query['query'].find(' ', 142)
            query['query'] = query['query'][:idx]

    # it's possible get_net was requested more than once.
    if props.is_searching and get_next == True:
        return;

    if category != '':
        if utils.profile_is_validator() and user_preferences.categories_fix:
            query['category'] = category
        else:
            query['category_subtree'] = category

    if author_id != '':
        query['author_id'] = author_id

    elif props.own_only:
        # if user searches for [another] author, 'only my assets' is invalid. that's why in elif.
        profile = bpy.context.window_manager.get('bkit profile')
        if profile is not None:
            query['author_id'] = str(profile['user']['id'])

    # utils.p('searching')
    props.is_searching = True

    params = {
        'scene_uuid': bpy.context.scene.get('uuid', None),
        'addon_version': version_checker.get_addon_version(),
        'api_key': user_preferences.api_key,
        'get_next': get_next,
        'free_first': props.free_only
    }

    orig_results = bpy.context.window_manager.get(f'bkit {ui_props.asset_type.lower()} search orig', {})
    if orig_results != {}:
        # ensure it's a copy in dict for what we are passing to thread:
        orig_results = orig_results.to_dict()
    add_search_process(query, params, orig_results)
    tasks_queue.add_task((ui.add_report, ('BlenderKit searching....', 2)))

    props.report = 'BlenderKit searching....'


def search_update(self, context):
    utils.p('search updater')
    # if self.search_keywords != '':
    ui_props = bpy.context.scene.blenderkitUI
    if ui_props.down_up != 'SEARCH':
        ui_props.down_up = 'SEARCH'

    # here we tweak the input if it comes form the clipboard. we need to get rid of asset type and set it in UI
    sprops = utils.get_search_props()
    instr = 'asset_base_id:'
    atstr = 'asset_type:'
    kwds = sprops.search_keywords
    idi = kwds.find(instr)
    ati = kwds.find(atstr)
    # if the asset type already isn't there it means this update function
    # was triggered by it's last iteration and needs to cancel
    if ati > -1:
        at = kwds[ati:].lower()
        # uncertain length of the remaining string -  find as better method to check the presence of asset type
        if at.find('model') > -1:
            ui_props.asset_type = 'MODEL'
        elif at.find('material') > -1:
            ui_props.asset_type = 'MATERIAL'
        elif at.find('brush') > -1:
            ui_props.asset_type = 'BRUSH'
        elif at.find('scene') > -1:
            ui_props.asset_type = 'SCENE'
        elif at.find('hdr') > -1:
            ui_props.asset_type = 'HDR'
        # now we trim the input copypaste by anything extra that is there,
        # this is also a way for this function to recognize that it already has parsed the clipboard
        # the search props can have changed and this needs to transfer the data to the other field
        # this complex behaviour is here for the case where the user needs to paste manually into blender?
        sprops = utils.get_search_props()
        sprops.search_keywords = kwds[:ati].rstrip()
        # return here since writing into search keywords triggers this update function once more.
        return

    search()


# accented_string is of type 'unicode'
def strip_accents(s):
    return ''.join(c for c in unicodedata.normalize('NFD', s)
                   if unicodedata.category(c) != 'Mn')


class SearchOperator(Operator):
    """Tooltip"""
    bl_idname = "view3d.blenderkit_search"
    bl_label = "BlenderKit asset search"
    bl_description = "Search online for assets"
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}

    own: BoolProperty(name="own assets only",
                      description="Find all own assets",
                      default=False)

    category: StringProperty(
        name="category",
        description="search only subtree of this category",
        default="",
        options={'SKIP_SAVE'}
    )

    author_id: StringProperty(
        name="Author ID",
        description="Author ID - search only assets by this author",
        default="",
        options={'SKIP_SAVE'}
    )

    get_next: BoolProperty(name="next page",
                           description="get next page from previous search",
                           default=False,
                           options={'SKIP_SAVE'}
                           )

    keywords: StringProperty(
        name="Keywords",
        description="Keywords",
        default="",
        options={'SKIP_SAVE'}
    )

    # close_window: BoolProperty(name='Close window',
    #                            description='Try to close the window below mouse before download',
    #                            default=False)


    tooltip: bpy.props.StringProperty(default='Runs search and displays the asset bar at the same time')

    @classmethod
    def description(cls, context, properties):
        return properties.tooltip

    @classmethod
    def poll(cls, context):
        return True

    def execute(self, context):
        # TODO ; this should all get transferred to properties of the search operator, so sprops don't have to be fetched here at all.
        sprops = utils.get_search_props()
        if self.author_id != '':
            sprops.search_keywords = ''
        if self.keywords != '':
            sprops.search_keywords = self.keywords

        search(category=self.category, get_next=self.get_next, author_id=self.author_id)
        # bpy.ops.view3d.blenderkit_asset_bar()

        return {'FINISHED'}

    # def invoke(self, context, event):
    #     if self.close_window:
    #         context.window.cursor_warp(event.mouse_x, event.mouse_y - 100);
    #         context.area.tag_redraw()
    #
    #         context.window.cursor_warp(event.mouse_x, event.mouse_y);
    #     return self. execute(context)

class UrlOperator(Operator):
    """"""
    bl_idname = "wm.blenderkit_url"
    bl_label = ""
    bl_description = "Search online for assets"
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}

    tooltip: bpy.props.StringProperty(default='Open a web page')
    url: bpy.props.StringProperty(default='Runs search and displays the asset bar at the same time')

    @classmethod
    def description(cls, context, properties):
        return properties.tooltip

    def execute(self, context):
        bpy.ops.wm.url_open(url=self.url)
        return {'FINISHED'}

class TooltipLabelOperator(Operator):
    """"""
    bl_idname = "wm.blenderkit_tooltip"
    bl_label = ""
    bl_description = "Empty operator to be able to create tooltips on labels in UI"
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}

    tooltip: bpy.props.StringProperty(default='Open a web page')

    @classmethod
    def description(cls, context, properties):
        return properties.tooltip

    def execute(self, context):
        return {'FINISHED'}

classes = [
    SearchOperator,
    UrlOperator,
    TooltipLabelOperator
]


def register_search():
    bpy.app.handlers.load_post.append(scene_load)

    for c in classes:
        bpy.utils.register_class(c)

    user_preferences = bpy.context.preferences.addons['blenderkit'].preferences
    if user_preferences.use_timers:
        bpy.app.timers.register(search_timer)

    categories.load_categories()


def unregister_search():
    bpy.app.handlers.load_post.remove(scene_load)

    for c in classes:
        bpy.utils.unregister_class(c)

    if bpy.app.timers.is_registered(search_timer):
        bpy.app.timers.unregister(search_timer)