sgcli

#!/usr/bin/env python

import bisect
import cStringIO
import curses
from curses.ascii import (isalnum,
                          BS,
                          DEL,
                          ESC,
                          SP,
                          TAB)
import datetime
import itertools
import json
import os
import random
import re
import subprocess
import threading
import time
import webbrowser

from PIL import (Image,
                 ImageOps)
import requests


WIDTH = 80
HEIGHT = 25
PER_PAGE = 10
CLIENT_ID = os.environ.get('CLIENT_ID')

if not CLIENT_ID:
    raise Exception('A client id is required to use this application - please see the README for more info')

def addstr(win, y, x, s, *args):
    # Bounds checking
    y = max(0, y)
    x = max(0, x)
    if y >= HEIGHT:
        return
    if x >= WIDTH:
        return
    s = s[:WIDTH - x - 1]

    return win.addstr(y, x, s, *args)


def set_dimensions(screen):
    global WIDTH
    global HEIGHT
    global PER_PAGE
    global PER_PAGE_2

    HEIGHT, WIDTH = screen.getmaxyx()
    PER_PAGE = max((HEIGHT - 4) / 3, 1)
    PER_PAGE_2 = max((HEIGHT - 5) / 2, 1)


def main(stdscr):
    set_dimensions(stdscr)
    stdscr.keypad(1)
    curses.curs_set(0)
    curses.init_pair(1, curses.COLOR_BLUE, curses.COLOR_BLACK)
    curses.init_pair(2, curses.COLOR_GREEN, curses.COLOR_BLACK)
    curses.init_pair(3, curses.COLOR_CYAN, curses.COLOR_BLACK)
    curses.init_pair(4, curses.COLOR_YELLOW, curses.COLOR_BLACK)
    curses.init_pair(5, curses.COLOR_RED, curses.COLOR_BLACK)
    curses.init_pair(6, curses.COLOR_MAGENTA, curses.COLOR_BLACK)

    home(stdscr)


def centered(win, y, message, *args):
    addstr(win, y, int((WIDTH - len(message)) / 2), message, *args)


def autocomplete(kill_switch, redraw, query, results):
    try:
        res = json.loads(requests.get("https://api.seatgeek.com/2/autocomplete?client_id={}&q={}&limit=3".format(CLIENT_ID, query)).text)
    except:
        return
    if kill_switch.is_set():
        return
    results[:] = [res]
    redraw.set()


def search(stdscr, input=""):
    query = input
    prev_input = ""
    autocomplete_results = []
    kill_switch = None
    redraw = None
    selected_result = None

    stdscr.clear()
    stdscr.border()
    centered(stdscr, 2, "Enter a performer, event or venue:")
    addstr(stdscr, 4, WIDTH / 2 - 30, "_" * 60, curses.A_DIM)
    addstr(stdscr, 4, WIDTH / 2 - 30, input[:60])
    curses.curs_set(2)
    stdscr.refresh()

    stdscr.nodelay(True)

    # Handle initial autocomplete for when somebody returns from a search
    if input:
        kill_switch = threading.Event()
        redraw = threading.Event()
        t = threading.Thread(target=autocomplete, args=(kill_switch, redraw, input, autocomplete_results))
        t.start()

    while True:
        if input != prev_input or (redraw and (redraw == True or redraw.is_set())):
            if input != prev_input:
                prev_input = input
            else:
                redraw = None

            stdscr.clear()
            stdscr.border()
            centered(stdscr, 2, "Enter a performer, event or venue:")

            if autocomplete_results:
                events = autocomplete_results[0].get("events", [])
                performers = autocomplete_results[0].get("performers", [])
                venues = autocomplete_results[0].get("venues", [])
                y = 5
                if events:
                    addstr(stdscr, y + 1, 2, "Events")
                    y += 2
                for event in events:
                    attrs = 0
                    if selected_result == event:
                        attrs = curses.A_REVERSE

                    dt = datetime.datetime.strptime(event["datetime_local"], "%Y-%m-%dT%H:%M:%S")
                    date_str = pad(dt.strftime("%%a %%b %d" % dt.day), 10)

                    event_str = "%s - %s - %s" % (event["title"],
                                                  date_str,
                                                  event["venue"]["name"])

                    addstr(stdscr, y, 4, pad(event_str, WIDTH - 6), attrs)
                    y += 1
                if performers:
                    addstr(stdscr, y + 1, 2, "Performers")
                    y += 2
                for performer in performers:
                    attrs = 0
                    if selected_result == performer:
                        attrs = curses.A_REVERSE
                    addstr(stdscr, y, 4, pad(performer["name"], WIDTH - 6), attrs)
                    y += 1
                if venues:
                    addstr(stdscr, y + 1, 2, "Venues")
                    y += 2
                for venue in venues:
                    attrs = 0
                    if selected_result == venue:
                        attrs = curses.A_REVERSE
                    state = venue["state"]
                    if not state or venue["country"] != "US":
                        state = venue["country"]
                    addstr(stdscr, y, 4, pad("%s - %s, %s" % (venue["name"],
                                                              venue["city"],
                                                              state),
                                             WIDTH - 6), attrs)
                    y += 1

            addstr(stdscr, 4, WIDTH / 2 - 30, "_" * 60, curses.A_DIM)
            query = input
            if selected_result:
                if selected_result.get("city"):
                    state = selected_result["state"]
                    if not state or selected_result["country"] != "US":
                        state = selected_result["country"]
                    query = "%s - %s, %s" % (selected_result["name"],
                                             selected_result["city"],
                                             state)
                else:
                    query = selected_result.get("title", selected_result.get("name"))
            addstr(stdscr, 4, WIDTH / 2 - 30, query[:60])

            # getch seems to do an implicit refresh, but let's make it explicit
            stdscr.refresh()

        merged_results = []
        if autocomplete_results:
            merged_results = autocomplete_results[0].get("events", []) + autocomplete_results[0].get("performers", []) + autocomplete_results[0].get("venues", [])

        ev = stdscr.getch()
        if ev == SP:
            selected_result = None
            input += " "
        elif ev == curses.KEY_RESIZE:
            set_dimensions(stdscr)
        elif ev in (BS, DEL, curses.KEY_BACKSPACE):
            if selected_result:
                redraw = True
                selected_result = None
            else:
                input = input[:-1]
        elif ev == ESC:
            stdscr.nodelay(False)
            curses.curs_set(0)
            return home(stdscr)
        elif ev == ord("\n"):
            stdscr.nodelay(False)
            curses.curs_set(0)
            if selected_result and selected_result.get("title"):
                return event_page(stdscr, selected_result, search, [stdscr, input])
            return search_results(stdscr, query)
        elif ev in (TAB, curses.KEY_DOWN, 14) and merged_results:
            idx = 0
            for i in range(len(merged_results)):
                if merged_results[i] == selected_result:
                    idx = i + 1
            idx = idx % len(merged_results)
            redraw = True
            selected_result = merged_results[idx]
        elif ev in (curses.KEY_BTAB, curses.KEY_UP, 16) and merged_results:
            idx = 0
            for i in range(len(merged_results)):
                if merged_results[i] == selected_result:
                    idx = i - 1
            idx = idx % len(merged_results)
            redraw = True
            selected_result = merged_results[idx]
        elif isalnum(ev) or ev in (ord(","), ord("."), ord("-"), ord("!"), ord("&")):
            selected_result = None
            input += chr(ev)

        if input and input != prev_input:
            # We are going to spawn a new thread, so disable any existing ones
            if kill_switch:
                kill_switch.set()

            kill_switch = threading.Event()
            redraw = threading.Event()
            t = threading.Thread(target=autocomplete, args=(kill_switch, redraw, input, autocomplete_results))
            t.start()

        time.sleep(0.01)


def loading_thread(screen, ev, message):
    dots = []
    while not ev.is_set():
        dots.append([1, random.randint(1, WIDTH - 2), "."])
        dots.append([1, random.randint(1, WIDTH - 2), "*"])

        screen.clear()
        screen.border()

        for dot in dots:
            addstr(screen, dot[0], dot[1], dot[2])
            dot[0] += 1
        dots = [d for d in dots if d[0] < HEIGHT - 1]

        centered(screen, 12, message)
        screen.refresh()
        ev.wait(0.1)


def loading(screen, message="Loading..."):
    ev = threading.Event()
    t = threading.Thread(target=loading_thread, args=(screen, ev, message))
    t.start()
    return (ev, t)


def search_results(stdscr, query):
    (ev, t) = loading(stdscr)
    try:
        res = json.loads(requests.get("https://api.seatgeek.com/2/events?client_id={}&per_page=100&q={}".format(CLIENT_ID, query)).text)
        events = res.get("events", [])
    except:
        events = []
    ev.set()
    t.join()

    if not events:
        stdscr.clear()
        stdscr.border()
        centered(stdscr, 2, "Search results for '%s'" % query)
        centered(stdscr, 4, "No results :( - any key to search again")
        act_on_input(stdscr, search)

    return results_page(stdscr, query, events, 0, 0)


def pad(s, l, left=False):
    if len(s) > l:
        return s[:l]
    if left:
        return " " * (l - len(s)) + s
    return s + " " * (l - len(s))


def draw_event(scr, event, row, highlight):
    attrs = 0
    if highlight:
        attrs = curses.A_REVERSE

    dt = datetime.datetime.strptime(event["datetime_local"], "%Y-%m-%dT%H:%M:%S")
    date_str = pad(dt.strftime("%%a %%b %d" % dt.day), 10)
    if dt.hour == 3 and dt.minute == 30:
        time_str = pad("Time TBD", 10, True)
    else:
        time_str = pad(dt.strftime("%I:%M %p"), 10, True)

    addstr(scr, 4 + 3 * row, 2, date_str, attrs)
    addstr(scr, 5 + 3 * row, 2, time_str, attrs)
    addstr(scr, 4 + 3 * row, 13, pad(event["title"], WIDTH - 15), attrs)
    byline = "  " + event["venue"]["name"]
    state = event["venue"]["state"]
    if not state or event["venue"]["country"] != "US":
        state = event["venue"]["country"]
    byline += " - " + event["venue"]["city"] + ", " + state
    addstr(scr, 5 + 3 * row, 13, pad(byline, WIDTH - 15), attrs)


DOWN_KEYS = (ord("n"), ord("j"), curses.KEY_DOWN, 14) # 14 is ^n
UP_KEYS = (ord("p"), ord("k"), curses.KEY_UP, 16) # 16 is ^p
LEFT_KEYS = (ord("b"), ord("h"), curses.KEY_LEFT, 2) # 2 is ^b
RIGHT_KEYS = (ord("f"), ord("l"), curses.KEY_RIGHT, 6) # 6 is ^f

def results_page(stdscr, query, events, page_number, result_number):
    stdscr.clear()
    stdscr.border()

    max_page = (len(events) - 1) / PER_PAGE
    if page_number > max_page or page_number < 0:
        raise Exception("Bad page # %s" % page_number)

    centered(stdscr, 2, "Search results for '%s' (%s/%s)" % (query, page_number + 1, max_page + 1))

    i = 0
    for event in events[page_number * PER_PAGE:(page_number + 1) * PER_PAGE]:
        draw_event(stdscr, event, i, i == result_number)
        i += 1

    stdscr.refresh()

    while True:
        ev = stdscr.getch()
        if ev == ord("q"):
            return confirm_quit(stdscr)
        elif ev == curses.KEY_RESIZE:
            set_dimensions(stdscr)
        elif ev == ESC:
            return quit(stdscr)
        elif ev == ord("s"):
            return search(stdscr)
        elif ev == ord("h"):
            return home(stdscr)
        elif ev in (BS, DEL, curses.KEY_BACKSPACE):
            return search(stdscr, query)
        elif ev in DOWN_KEYS:
            if (result_number < PER_PAGE - 1) and (PER_PAGE * page_number + result_number < len(events) - 1):
                result_number += 1
            elif page_number < max_page:
                result_number = 0
                page_number += 1
        elif ev in UP_KEYS:
            if result_number > 0:
                result_number -= 1
            elif page_number > 0:
                result_number = PER_PAGE - 1
                page_number -= 1
        elif ev in RIGHT_KEYS:
            if page_number < max_page:
                page_number += 1
            if (PER_PAGE * page_number + result_number > len(events) - 1):
                result_number = len(events) - 1 - PER_PAGE * page_number
        elif ev in LEFT_KEYS:
            if page_number > 0:
                page_number -= 1
        elif ev == ord("\n"):
            event = events[PER_PAGE * page_number + result_number]
            return event_page(stdscr, event, results_page, [stdscr, query, events, page_number, result_number])
        return results_page(stdscr, query, events, page_number, result_number)


def draw_event_header(screen, event):
    screen.clear()
    screen.border()

    centered(screen, 1, event["title"])

    dt = datetime.datetime.strptime(event["datetime_local"], "%Y-%m-%dT%H:%M:%S")
    if dt.hour == 3 and dt.minute == 30:
        time_str = "Time TBD"
    else:
        time_str = dt.strftime("%I:%M %p")
    date_str = dt.strftime("%%a %%b %d" % dt.day) + ", " + time_str
    byline = date_str + " - " + event["venue"]["name"]
    state = event["venue"]["state"]
    if not state or event["venue"]["country"] != "US":
        state = event["venue"]["country"]
    byline += ", " + state
    centered(screen, 2, byline)


def event_page(screen, event, prev_view, prev_args):
    (ev, t) = loading(screen, "Searching the web's ticket sites...")
    try:
        res = json.loads(requests.get("http://seatgeek.com/listings?id=%d&client_id=MTIwNzV8MTM2NTQ1MDQyMg" % event["id"]).text)
        listings = res["listings"]
    except:
        listings = []
    ev.set()
    t.join()

    if not listings:
        draw_event_header(screen, event)
        centered(screen, 4, "Shoot. No listings found :(. Here's a bunny.")
        centered(screen, 6, "                          +MM0^            ")
        centered(screen, 7, "                           +MMMM1          ")
        centered(screen, 8, "                           0MMNMM+         ")
        centered(screen, 9, "                           +MMMNNN         ")
        centered(screen, 10, "              ^^++++^^      1MMM0N1++^     ")
        centered(screen, 11, "         +1o00000o00000oooo1+oMM000MM00o^  ")
        centered(screen, 12, "       10000o000000000oo000oo00MNNMMMM000+ ")
        centered(screen, 13, "     o000oo0o00o0000o0000000o0000MMMMN0000+")
        centered(screen, 14, "   +0000000000000000oo000000000000NNN0000N0")
        centered(screen, 15, "  +000000NMMMMMNN00000000000000NN00000000o^")
        centered(screen, 16, "  0000MMMMMMMMMMMMMN00000000000MMNNMo1+^^  ")
        centered(screen, 17, "  0000MMMMMN000000NNNo000000000NMM1+       ")
        centered(screen, 18, "  100000000000000000NN00ooo000001^         ")
        centered(screen, 19, " 1o0000o00000000000000N000000N+            ")
        centered(screen, 20, "NMMMM0o00000000000000000000MM0             ")
        centered(screen, 21, "+o0MMMoo000000000000000000NNMNo1^          ")
        centered(screen, 22, "      ^o000000000o000ooooo0000NM0          ")
        centered(screen, 24, "(h) home  (s) search  (q) quit  (BKSP) back")

        screen.refresh()

        while True:
            ev = screen.getch()
            if ev == ord("q"):
                return confirm_quit(screen)
            elif ev == curses.KEY_RESIZE:
                set_dimensions(screen)
            elif ev == ESC:
                return quit(screen)
            elif ev == ord("s"):
                return search(screen)
            elif ev == ord("h"):
                return home(screen)
            elif ev in (BS, DEL, curses.KEY_BACKSPACE):
                return prev_view(*prev_args)

    return listings_page(prev_view, prev_args, screen, event, listings, 0, 0)


def grouped(listings, fixed_quantity=0):
    grouped = {}
    for l in listings:
        if fixed_quantity and fixed_quantity not in l.get("sp", []):
            continue
        key = l.get("mk") or "%s_%s" % (l["s"], l.get("r", "none"))
        if not fixed_quantity:
            key += "--%s" % l["q"]
        if key not in grouped:
            grouped[key] = l
    return sorted(grouped.values(), key=lambda x: x.get("dq"), reverse=True)


def draw_listing(screen, listing, row, highlight):
    attrs = 0
    if highlight:
        attrs = curses.A_REVERSE
    elif listing.get("b") in (0, 1):
        attrs = curses.color_pair(2)
    elif listing.get("b") == 2:
        attrs = curses.color_pair(4)
    elif "b" in listing:
        attrs = curses.color_pair(5)

    addstr(screen, 5 + 2 * row, 2, " " * (WIDTH - 4), attrs)
    if listing.get("dq"):
        addstr(screen, 5 + 2 * row, 3, "(%d)" % listing["dq"], attrs)
    addstr(screen, 5 + 2 * row, 8, ("section " + listing["s"] + " - row " + listing.get("r", "none")).title(), attrs)
    addstr(screen, 5 + 2 * row, WIDTH - 15, pad(str(listing["q"]), 2, True) + pad((listing["et"] and " etix" or " tix"), 7), attrs)
    addstr(screen, 5 + 2 * row, WIDTH - 7, pad("$" + str(listing["pf"]), 4, True), attrs)


def listings_page(prev_view, prev_args, screen, event, all_listings, page_number, result_number, quantity=0):
    flash = ""
    listings = grouped(all_listings, quantity)
    if not listings:
        flash = "No listings for %d tickets available, showing all " % quantity
        listings = grouped(all_listings, 0)

    max_page = (len(listings) - 1) / PER_PAGE_2
    if page_number > max_page or page_number < 0:
        raise Exception("Bad page # %s" % page_number)

    draw_event_header(screen, event)
    centered(screen, 3, "%s(%s/%s)" % (flash, page_number + 1, max_page + 1))

    current_listing = None
    i = 0
    for listing in listings[page_number * PER_PAGE_2:(page_number + 1) * PER_PAGE_2]:
        if i == result_number:
            current_listing = listing
        draw_listing(screen, listing, i, i == result_number)
        i += 1

    screen.refresh()

    while True:
        ev = screen.getch()
        if ev == ord("q"):
            return confirm_quit(screen)
        elif ev == curses.KEY_RESIZE:
            set_dimensions(screen)
        elif ev == ESC:
            return quit(screen)
        elif ev == ord("s"):
            return search(screen)
        elif ev == ord("h"):
            return home(screen)
        elif ev in (BS, DEL, curses.KEY_BACKSPACE):
            return prev_view(*prev_args)
        elif ord("9") >= ev and ev >= ord("0"):
            quantity = ev - ord("0")
            return listings_page(prev_view, prev_args, screen, event, all_listings, 0, 0, quantity)
        elif ev in DOWN_KEYS:
            if (result_number < PER_PAGE_2 - 1) and (PER_PAGE_2 * page_number + result_number < len(listings) - 1):
                result_number += 1
            elif page_number < max_page:
                result_number = 0
                page_number += 1
        elif ev in UP_KEYS:
            if result_number > 0:
                result_number -= 1
            elif page_number > 0:
                result_number = PER_PAGE_2 - 1
                page_number -= 1
        elif ev in RIGHT_KEYS:
            if page_number < max_page:
                page_number += 1
            if (PER_PAGE_2 * page_number + result_number > len(listings) - 1):
                result_number = len(listings) - 1 - PER_PAGE_2 * page_number
        elif ev in LEFT_KEYS:
            if page_number > 0:
                page_number -= 1
        elif ev == ord("\n"):
            previous_args = [prev_view, prev_args, screen, event, all_listings, page_number, result_number, quantity]
            return listing_page(previous_args, screen, event, current_listing)
        return listings_page(prev_view, prev_args, screen, event, all_listings, page_number, result_number, quantity)


def which(program):
    def is_exe(fpath):
        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)

    fpath, fname = os.path.split(program)
    if fpath:
        if is_exe(program):
            return program
    else:
        for path in os.environ["PATH"].split(os.pathsep):
            exe_file = os.path.join(path, program)
            if is_exe(exe_file):
                return exe_file

    return None


def listing_page(previous_args, screen, event, listing):
    map_image = None
    ga = False
    no_map = False

    if event.get("general_admission"):
        ga = True
    else:
        # Load the map and check if it's an actual map
        map_image = "http://seatgeek.com/event/static_map_image?width=320&height=320&event_id=%s" % (event["id"])

        (ev, t) = loading(screen)
        try:
            map_image = requests.get(map_image)
            if "v2155/concert/1/1" in map_image.url:
                map_image = None
                no_map = True

        except:
            map_image = None
            no_map = True

        ev.set()
        t.join()

    draw_event_header(screen, event)
    centered(screen, 4, "%s tickets in Section %s, Row %s" % (listing["q"],
                                                              listing["s"].title(),
                                                              listing.get("r", "none").title()))
    centered(screen, 5, "$%s base + $%s fees & shipping = $%s each. (b)uy on %s" % (listing["p"], listing["pf"] - listing["p"], listing["pf"], listing["m"]))
    if listing.get("d"):
        description = re.sub('<[^<]+?>', '', listing["d"])
        centered(screen, 6, description[:WIDTH-2])

    if ga:
        centered(screen, 12, "General Admission Show")
        centered(screen, 13, "This show does not have assigned seating.")
    elif no_map:
        centered(screen, 12, "Seating Chart Unavailable")
    else:
        # Let's draw the MAP!
        # Font stretch is approx 9x20
        # Given height limit of ~20, we want width of 45

        max_width = WIDTH - 2
        max_height = HEIGHT - 9

        width_limited_height = max_width * 9 / 20
        if width_limited_height < max_height:
            width, height = max_width, width_limited_height
        else:
            width, height = max_height * 20 / 9, max_height

        try:
            img = Image.open(cStringIO.StringIO(map_image.content))
            characters = "#X=*+-. "
            bounds = [32, 64, 96, 128, 160, 192, 224]

            img = img.resize((width, height),Image.BILINEAR)
            bw = img.copy()
            bw = bw.convert("L") # convert to mono

            img = ImageOps.posterize(img.convert("RGB"), 1)

            start_x = (WIDTH - width) / 2
            for y in range(0, img.size[1]):
                str=""
                for x in range(0, img.size[0]):
                    lum = 255 - bw.getpixel((x,y))
                    c = characters[bisect.bisect(bounds, lum)]
                    color_num={(0,0,0): 0,
                               (0,0,128): 1,
                               (0,128,0): 2,
                               (0,128,128): 3,
                               (128,0,0): 5,
                               (128,0,128): 6,
                               (128,128,0): 4,
                               (128,128,128): 0}[img.getpixel((x,y))]
                    addstr(screen, 8 + y, start_x + x, c, curses.color_pair(color_num))
                    str += c

            # Draw the marker
            x = width * listing["co"]["x"] / 1000 + start_x
            y = height * listing["co"]["y"] / 1000 + 8
            addstr(screen, y, x, "O", curses.color_pair(1))

            addstr(screen, y, x+1, "|", curses.color_pair(1))
            addstr(screen, y, x-1, "|", curses.color_pair(1))
            addstr(screen, y+1, x+1, "/", curses.color_pair(1))
            addstr(screen, y+1, x-1, "\\", curses.color_pair(1))
            addstr(screen, y-1, x+1, "\\", curses.color_pair(1))
            addstr(screen, y-1, x-1, "/", curses.color_pair(1))
            addstr(screen, y-1, x, " ", curses.color_pair(1))
            addstr(screen, y-2, x, "_", curses.color_pair(1))
            addstr(screen, y+1, x, "_", curses.color_pair(1))
        except:
            centered(screen, 12, "Error Rendering Map")

    screen.refresh()

    link = "http://seatgeek.com/event/click/?tid=%s&eid=%s&section=%s&row=%s&quantity=%s&price=%s&baseprice=%s&market=%s&sg=0&dq=%s" % (listing["id"], event["id"], listing["s"], listing.get("r", "none"), listing["q"], listing["pf"], listing["p"], listing["m"], listing.get("dq",0))

    def open_browser(use_links):
        browse(link, use_links)
        return post_purchase(screen, previous_args)

    return act_on_input(screen, {"q": confirm_quit,
                                 ESC: quit,
                                 "s": search,
                                 "h": home,
                                 (BS, DEL, curses.KEY_BACKSPACE): [listings_page] + previous_args,
                                 "b": [open_browser, True],
                                 "w": [open_browser, False]})


def post_purchase(screen, previous_args):
    screen.nodelay(True)

    dots = []
    i = 0

    while True:
        i += 1
        dots.append([random.randint(1, HEIGHT - 2), WIDTH - 2, random.random() < 0.5 and "+" or "o"])

        screen.clear()
        screen.border()

        for dot in dots:
            addstr(screen, dot[0], dot[1], dot[2])
            dot[1] -= 1
            if random.random() < 0.1:
                dot[2] = dot[2] == "+" and "o" or "+"
        dots = [d for d in dots if d[1] > 1]

        trail_length = (WIDTH - 10) / 4
        addstr(screen, 10, 2, (i % 4 < 2 and "-_" or "_-") * trail_length, curses.color_pair(5))
        addstr(screen, 11, 2, (i % 4 < 2 and "-_" or "_-") * trail_length, curses.color_pair(4))
        addstr(screen, 12, 2, (i % 4 < 2 and "-_" or "_-") * trail_length, curses.color_pair(2))
        addstr(screen, 13, 2, (i % 4 < 2 and "-_" or "_-") * trail_length, curses.color_pair(1))
        addstr(screen, 10, 2 + trail_length * 2, ",------,")
        addstr(screen, 11, 2 + trail_length * 2, "|   /\\_/\\")
        addstr(screen, 12, 2 + trail_length * 2, "|__( ^ .^)")
        addstr(screen, 13, 4 - (i % 3) + trail_length * 2, "\"\"  \"\"")
        addstr(screen, 11 + (i % 6 / 3), 1 + trail_length * 2, "~")

        centered(screen, 5, "Thanks for using SeatGeek! Enjoy the event!")
        centered(screen, 6, "(BKSP) back  (s) search  (h) home  (q) quit")
        screen.refresh()

        ev = screen.getch()
        if ev == ord("q"):
            screen.nodelay(False)
            return confirm_quit(screen)
        elif ev == curses.KEY_RESIZE:
            set_dimensions(screen)
        elif ev == ESC:
            screen.nodelay(False)
            return quit(screen)
        elif ev == ord("s"):
            screen.nodelay(False)
            return search(screen)
        elif ev == ord("h"):
            screen.nodelay(False)
            return home(screen)
        elif ev in (BS, DEL, curses.KEY_BACKSPACE):
            screen.nodelay(False)
            return listings_page(*previous_args)

        time.sleep(0.1)


def draw_logo(stdscr):
    x = (WIDTH - 50) / 2
    addstr(stdscr, 2, x, " ;;;;               ;   ", curses.color_pair(1))
    addstr(stdscr, 3, x, "::                  ;   ", curses.color_pair(1))
    addstr(stdscr, 4, x, ";,     .;;:  :;;;  ;;;; ", curses.color_pair(1))
    addstr(stdscr, 5, x, "`;:    ;  ;` `  ;,  ;   ", curses.color_pair(1))
    addstr(stdscr, 6, x, "  ,;: ,;::;,    :,  ;   ", curses.color_pair(1))
    addstr(stdscr, 7, x, "    ; :,     ,;,:,  ;   ", curses.color_pair(1))
    addstr(stdscr, 8, x, "    ; ,;     ;  ;,  ;`  ", curses.color_pair(1))
    addstr(stdscr, 9, x, ",:,;,  ;:,:` ;,:,:. ;;, ", curses.color_pair(1))
    addstr(stdscr, 10, x, " ..     `.`   .  `   .` ", curses.color_pair(1))

    addstr(stdscr, 1, x + 24, "                    :;,   ")
    addstr(stdscr, 2, x + 24, "  ;;;;;              :,   ")
    addstr(stdscr, 3, x + 24, " ;.                  :,   ")
    addstr(stdscr, 4, x + 24, "::       ,;;,  `;;;  :, ,;")
    addstr(stdscr, 5, x + 24, ";`      .;  ;  ;  :, :,`; ")
    addstr(stdscr, 6, x + 24, ";     ; ;;::;..;::;; ::;  ")
    addstr(stdscr, 7, x + 24, ";.    ; ;.    ,;     ::;  ")
    addstr(stdscr, 8, x + 24, ".;    ; ::    .;     :,,; ")
    addstr(stdscr, 9, x + 24, " :;;:;;  ;:,:  ;;,:. :, ;:")
    addstr(stdscr, 10, x + 24, "   ..`    `.    `.`  `   `")
    addstr(stdscr, 11, x + 24, "      `              ,    ")
    addstr(stdscr, 12, x + 24, "     :;;            ,;    ")
    addstr(stdscr, 13, x + 24, "       ,;          :;     ")
    addstr(stdscr, 14, x + 24, "        `;,      .;:      ")
    addstr(stdscr, 15, x + 24, "          ,;;;;;;;        ")


def confirm_quit(screen):
    screen.clear()
    screen.border()
    draw_logo(screen)
    centered(screen, 19, "ONE DOES NOT SIMPLY")
    centered(screen, 20, "QUIT SEATGEEK")
    centered(screen, 24, "Quit? (y/n)")
    screen.refresh()

    return act_on_input(screen, {"y": quit, "n": home})


def quit(stdscr, message=None):
    stdscr.clear()
    draw_logo(stdscr)
    centered(stdscr, 19, "Seat you later!")
    if message:
        centered(stdscr, 20, message)
    stdscr.refresh()


def browse(uri, prefer_links=True):
    links = which("links") or which("elinks") or which("lynx")
    if prefer_links and links:
        subprocess.call([links, uri])
    else:
        webbrowser.open(uri)


def act_on_input(screen, actions):
    def key(k):
        if isinstance(k, str):
            return [ord(k)]
        if isinstance(k, (list, tuple)):
            return list(itertools.chain.from_iterable(key(l) for l in k))
        return [k]

    while True:
        ev = screen.getch()
        if ev == curses.KEY_RESIZE:
            set_dimensions(screen)
        elif not isinstance(actions, dict):
            return actions(screen)
        else:
            for k,v in actions.iteritems():
                if ev in key(k):
                    if isinstance(v, list):
                        return v[0](*v[1:])
                    return v(screen)


def home(stdscr):
    stdscr.clear()
    stdscr.border()
    draw_logo(stdscr)
    centered(stdscr, 19, "Welcome to SeatGeek!")
    centered(stdscr, 20, "(s) search  (q/ESC) quit")
    stdscr.refresh()

    return act_on_input(stdscr, {"q": confirm_quit,
                                 ESC: quit,
                                 "s": search})


if __name__ == "__main__":
    os.environ["TERM"] = "xterm"
    curses.wrapper(main)