from banjo.urls import route_get, route_post
from banjo.http import BadRequest, NotFound
from app.models import Line, Poem, Rhyme
from random import choice, sample

@route_get('lines/random', args={})
def get_random_line(params):
    return {'line': Line.objects.random()}

@route_get('lines/about', args={'topic': str})
def get_line_about_topic(params):
    try:
        line = Line.objects.filter(clean_text__contains=params['topic']).random()
        return {'lines' : line, 'topic': params['topic']}
    except Line.DoesNotExist:
        raise NotFound("No lines with that topic")
    
@route_get('lines/rhyme', args={'rhyme': str})
def get_line_with_rhyme(params):
    try:
        line = Rhyme.get_rhyme_for_word(params['rhyme']).lines.exclude(clean_text__endswith=params['rhyme']).random()
        return {'lines' : line, 'rhyme': params['rhyme']}
    except Line.DoesNotExist:
        raise NotFound("No lines that rhyme")

@route_get('/couplets/random', args={})
def get_random_couplet(params):
    flag = True
    while flag:
        line = Line.objects.random()
        if line.rhyming_lines().count() > 0:
            flag = False
    rhyming_line = line.rhyming_lines().random()
    return {'couplet' : [line, rhyming_line]}

@route_get('/couplets/about', args={'topic' : str})
def get_couplet_about_topic(params):
    flag = True
    while flag:
        try:
            line = Line.objects.filter(clean_text__contains=params['topic']).random()
        except Line.DoesNotExist:
            raise NotFound("No lines with that topic")
        if line.rhyming_lines().count() > 0:
            flag = False
    rhyming_line = line.rhyming_lines().random()
    return {'couplet' : [line, rhyming_line], 'topic': params['topic']}

@route_get('/couplets/rhyme', args={'rhyme' : str})
def get_couplet_with_rhyme(params):
    flag = True
    while flag:
        try:
            line = Rhyme.get_rhyme_for_word(params['rhyme']).lines.exclude(clean_text__endswith=params['rhyme']).random()
        except Line.DoesNotExist:
            raise NotFound("No lines with that rhyme")
        if line.rhyming_lines().count() > 0:
            flag = False
    rhyming_line = line.rhyming_lines().random()
    return {'couplet' : [line, rhyming_line], 'rhyme' : params['rhyme']}

@route_get('poems/random', args={})
def get_random_line(params):
    return {'poem': Poem.objects.random()}