from random import randint

from itte import IRC, Util


class Ramen:
    """Requests with a ramen theme."""

    def main(self):
        """Instantiate an IRC object and attach the listeners."""
        # Load yaml sources used by request handlers
        self.util = Util()
        self.rand = self.util.rand
        self.std = self.util.yml("ramenkan/standard.yml")
        self.links = self.util.yml("ramenkan/links.yml")
        self.dishes = self.util.yml("ramenkan/dishes.yml")
        # Init irc object
        self.irc = IRC()
        self.cfg = self.irc.config("ramenkan/config.sample.yml")
        self.irc.run(self.add_listeners)

    def add_listeners(self, cxt):
        """Map triggers to handlers."""
        self.irc.listen(cxt, "exit " + self.cfg["admin"]["code"], self.quit, \
            admin=True)
        self.irc.listen(cxt, "rollcall", self.rollcall)
        self.irc.listen(cxt, "help", self.rollcall)
        self.irc.listen(cxt, "water " + self.cfg["bot_nick"], self.water)
        self.irc.listen(cxt, "botsnack " + self.cfg["bot_nick"], self.botsnack)
        self.irc.listen(cxt, "ramen", self.ramen)
        self.irc.listen(cxt, "veggieramen", self.ramen_veggie)
        self.irc.listen(cxt, "rk", self.ramen)
        self.irc.listen(cxt, "rkveg", self.ramen_veggie)
        self.irc.listen(cxt, "rklink", self.link)

    def quit(self, cxt):
        """Disconnect from the server and quit."""
        self.irc.disconnect("Okay, okay, I'll leave. (´･ω･`)", "noodling off")

    def rollcall(self, cxt):
        """Handle request for app info."""
        self.irc.reply(cxt, self.std["rollcall"])

    def water(self, cxt):
        """Handle water offer."""
        resp = self.std["water"]
        for index, r in enumerate(resp):
            if "{{ nick }}" in r:
                resp.append(r.replace("{{ nick }}", cxt["msg"]["nick"]))
                resp.pop(index)
        self.irc.reply(cxt, self.rand(resp))

    def botsnack(self, cxt):
        """Handle snack offer."""
        self.irc.reply(cxt, self.rand(self.std["botsnack"]))

    def make_ramen_combo(self, *args, **kwargs):
        """Generate a ramen dish. Optionally pass `veggie=True` for a
        vegetarian dish."""
        dish = self.dishes
        # Check vegetarian flag
        is_veggie = kwargs.get("veggie", False)
        combo = "ramen in "
        # Noodle type and broth richness
        if randint(0, 1):
            combo = self.rand(dish["noodle-shape"]) + ", " + \
                self.rand(dish["noodle-broth-type"]) + " "
        combo = combo.capitalize()
        # Broth type
        if is_veggie:
            combo += self.rand(dish["broth-veggie"])
        else:
            combo += self.rand(dish["broth"] + dish["broth-veggie"])
        combo += " broth"
        # Topping
        n_top = randint(2, 4)
        for n in range(2, n_top+1):
            if n == 2:
                if is_veggie:
                    prev_top = self.rand(dish["topping"])
                else:
                    prev_top = self.rand(dish["topping"] + dish["meat"]) 
                combo += " with " + prev_top
            else:
                if n > 2 and n < n_top:
                    combo += ", "
                else:
                    combo += " and "
                if is_veggie:
                    next_top = self.rand(dish["topping"])
                else:
                    next_top = self.rand(dish["topping"])
                # Check for duplicate
                if next_top == prev_top:
                    next_top = self.rand(dish["topping"]) 
                combo += next_top
                prev_top = next_top
        # Condiment and side dish
        if randint(0, 1):
            combo += ", garnished with " + self.rand(dish["condiment"]) + "."
        else:
            combo += "."
        if randint(0, 1):
            combo += " Served with "
            if is_veggie:
                combo += self.rand(dish["tapa-veggie"]) + "."
            else:
                combo += self.rand(dish["tapa"] + dish["tapa-veggie"]) + "."
        return combo

    def ramen(self, cxt):
        """Handle ramen request."""
        roll = randint(1, 100)
        # 1% possibility of regional preset
        if roll == 100:
            resp = (self.rand(self.dishes["set"] + \
                self.dishes["set-veggie"]) + ".").capitalize()
        else:
            resp = self.make_ramen_combo()
        self.irc.reply(cxt, resp)

    def ramen_veggie(self, cxt):
        """Handle vegetarian ramen request."""
        roll = randint(1, 100)
        if roll == 100:
            resp = (self.dishes["set-veggie"] + ".").capitalize()
        else:
            resp = self.make_ramen_combo(veggie=True)
        self.irc.reply(cxt, resp)

    def link(self, cxt):
        """Handle to display a link."""
        index = randint(0, len(self.links)-1)
        self.irc.reply(cxt, self.links[index]["title"] + " " + \
            self.links[index]["link"])


app = Ramen()
app.main()