# -*- coding: utf-8 -*-

# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

from __future__ import unicode_literals

import sys

from . import Progress


class Bar(Progress):
    width = 3  # 32
    suffix = "%(index)d/%(max)d"
    bar_prefix = " |"
    bar_suffix = "| "
    empty_fill = " "
    fill = "#"

    def update(self):
        filled_length = int(self.width * self.progress)
        empty_length = self.width - filled_length

        message = self.message % self
        bar = self.fill * filled_length
        empty = self.empty_fill * empty_length
        suffix = self.suffix % self
        line = "".join([message, self.bar_prefix, bar, empty, self.bar_suffix, suffix])
        self.writeln(line)


class ChargingBar(Bar):
    suffix = "%(percent)d%%"
    bar_prefix = " "
    bar_suffix = " "
    empty_fill = "∙"
    fill = "█"


class FillingSquaresBar(ChargingBar):
    empty_fill = "▢"
    fill = "▣"


class FillingCirclesBar(ChargingBar):
    empty_fill = "◯"
    fill = "◉"


class IncrementalBar(Bar):
    if sys.platform.startswith("win"):
        phases = (" ", "▌", "█")
    else:
        phases = (" ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█")

    def update(self):
        nphases = len(self.phases)
        filled_len = self.width * self.progress
        nfull = int(filled_len)  # Number of full chars
        phase = int((filled_len - nfull) * nphases)  # Phase of last char
        nempty = self.width - nfull  # Number of empty chars

        message = self.message % self
        bar = self.phases[-1] * nfull
        current = self.phases[phase] if phase > 0 else ""
        empty = self.empty_fill * max(0, nempty - len(current))
        suffix = self.suffix % self
        line = "".join(
            [message, self.bar_prefix, bar, current, empty, self.bar_suffix, suffix]
        )
        self.writeln(line)


class PixelBar(IncrementalBar):
    phases = ("⡀", "⡄", "⡆", "⡇", "⣇", "⣧", "⣷", "⣿")


class ShadyBar(IncrementalBar):
    phases = (" ", "░", "▒", "▓", "█")
