from pyquery import PyQuery

from sites.helper.item import Item, Empty


class Structure:
    def __init__(self, site):
        self.site = site
        self.container_path = None
        self.item_path = None
        self.item_url_path = None
        self.item_title_path = None
        self.item_duration_path = None
        self.item_size_path = None
        self.item_artist_path = None
        self.item_cover_path = None
        self.item_album_path = None
        self.item_genre_path = None
        self.item_label_path = None

    def set_container_path(self, path):
        self.container_path = path
        return self

    def set_item_path(self, path):
        self.item_path = path
        return self

    def set_url_path(self, path):
        self.item_url_path = path
        return self

    def set_title_path(self, path):
        self.item_title_path = path
        return self

    def set_artist_path(self, path):
        self.item_artist_path = path
        return self

    def set_duration_path(self, path):
        self.item_duration_path = path
        return self

    def set_size_path(self, path):
        self.item_size_path = path,
        return self

    def set_cover_path(self, path):
        self.item_cover_path = path
        return self

    def set_album_path(self, path):
        self.item_album_path = path
        return self

    def set_genre_path(self, path):
        self.item_genre_path = path
        return self

    def set_label_path(self, path):
        self.item_label_path = path
        return self

    def parse(self, html):
        pq = PyQuery(html)

        pq.make_links_absolute(base_url=self.site.url)

        results = pq(self.container_path).find(self.item_path)

        items = []

        for result in results:
            result = pq(result)
            title = result.find(self.item_title_path) if self.item_title_path is not None else None
            url = result.find(self.item_url_path) if self.item_url_path is not None else None
            duration = result.find(self.item_duration_path) if self.item_duration_path is not None else None
            size = result.find(self.item_size_path) if self.item_size_path is not None else None

            if title is not None and url is not None:
                item = Item(self.site)
                item.set_title(self.site.format_title(title))
                item.set_artist(self.site.format_artist(title))
                item.set_original_url(url)
                item.set_duration_string(self.site.format_duration(duration))
                item.set_size_string(self.site.format_size(size))

                items.append(item)

        return items