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129 lines
4.4 KiB
Python
129 lines
4.4 KiB
Python
#!/usr/bin/env python3
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#TODO: make sure things dont explode no matter what terminal size
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# x prevent linebreaks in a single story
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# x only load as many stories as fit
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# -> refresh on resize
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import requests
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from bs4 import BeautifulSoup as Soup
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import curses
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import webbrowser
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import api
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spinner_states = ['-', '\\', '|', '/']
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class Client:
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def __init__(self):
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# set up curses
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self.screen = curses.initscr()
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curses.start_color()
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curses.use_default_colors()
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curses.init_pair(1, 255, 208)
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curses.noecho()
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curses.cbreak()
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self.screen.keypad(True)
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self.topstories = api.get_topstories()
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self.loadedstories = []
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self.story_pos = 0
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self.cursor_pos = 0
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self.lines = curses.LINES
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self.cols = curses.COLS
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self.stories_in_a_site = self.lines - 3
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def load_stories(self, from_pos, to_pos):
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for idx, i in enumerate(self.topstories[from_pos:to_pos]):
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#stdscr.clear()
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self.set_footer(f'[{spinner_states[idx%4]}] Loading { to_pos - from_pos } stories...')
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self.screen.refresh()
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self.loadedstories.append(api.get_story(i))
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def set_footer(self, footer):
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self.screen.addstr(curses.LINES - 1, 0, footer, curses.A_REVERSE)
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def draw(self):
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self.screen.clear()
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self.lines = curses.LINES
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self.cols = curses.COLS
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# header, detail, footer:
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self.stories_in_a_site = self.lines - 3
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title_string = '[Y] Hacker News'
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title_string +=' ' * ( self.cols - len(title_string) - 1) + '\n'
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self.screen.addstr(title_string, curses.color_pair(1))
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for i, story in enumerate(self.loadedstories[self.story_pos:self.story_pos + self.stories_in_a_site]):
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prefix = '>' if i == self.cursor_pos else ''
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# calculate length of line
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text = f'{prefix} ()\n'
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chars_available = self.cols - len(text)
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max_title_len = min((chars_available//3)*2, len(story.title))
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max_url_len = chars_available - max_title_len
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title = story.title[:max_title_len-1] + "…" if len(story.title) > max_title_len else story.title
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link = story.link.replace('https://', '').replace('http://', '')
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link = link[:max_url_len-1] + "…" if len(link) > max_url_len else link
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#text = '{}{} ({})\n'.format(prefix, title, link)
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self.screen.addstr(prefix)
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if i == self.cursor_pos:
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self.screen.addstr(title, curses.A_UNDERLINE)
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self.screen.addstr(f' ({link})\n', curses.A_DIM )
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detail = f' by {story.author} | {story.comments} comments | {story.votes} points\n'
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self.screen.addstr(detail)
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else:
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self.screen.addstr(title)
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self.screen.addstr(f' ({link})\n', curses.A_DIM )
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self.set_footer(f'Loaded {len(self.loadedstories)} stories.')
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def handle_input(self):
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c = self.screen.getch()
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if c == ord('q'): # Quit
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self.exit()
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elif c == curses.KEY_UP:
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self.cursor_pos -= 1
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if self.cursor_pos < 0:
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self.cursor_pos = self.stories_in_a_site-1
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elif c == curses.KEY_DOWN:
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self.cursor_pos += 1
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if self.cursor_pos >= self.stories_in_a_site:
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self.cursor_pos = 0
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elif c == ord('c'):
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webbrowser.open(f'https://news.ycombinator.com/item?id={self.loadedstories[self.story_pos + self.cursor_pos].id}')
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elif c == curses.KEY_ENTER or c == 10:
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webbrowser.open(self.loadedstories[self.story_pos + self.cursor_pos].link)
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elif c == curses.KEY_RESIZE:
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curses.resize_term(*self.screen.getmaxyx())
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self.lines, self.cols = self.screen.getmaxyx()
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self.stories_in_a_site = self.lines - 3
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if len(self.loadedstories) < self.story_pos + self.stories_in_a_site:
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# load more
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self.load_stories(len(self.loadedstories), self.story_pos + self.stories_in_a_site)
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def run(self):
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self.load_stories(0, self.stories_in_a_site)
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while True:
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self.draw()
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self.handle_input()
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def exit(self):
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curses.endwin()
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import sys
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sys.exit(0)
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def main():
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try:
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client = Client()
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client.run()
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except Exception as e:
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curses.endwin()
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raise e
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if __name__ == '__main__':
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main()
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