from st3m.application import Application, ApplicationContext
from st3m.ui.colours import PUSH_RED, GO_GREEN, BLACK, WHITE
from st3m.goose import Dict, Any
from st3m.input import InputState
from ctx import Context
import leds
import captouch

import json
import math


class Configuration:
    def __init__(self) -> None:
        # Add up to 5 items with custom header
        self.hdrs: list = ['name', 'handel', 'lang', 'pronouns', 'empty']
        self.strs: list = ['flow3r', '', 'noLang', '', '']
        self.size: int = 75
        self.font: int = 5
        self.colour: int = (1.0, 1.0, 1.0)
        self.delay: int = 8

    @classmethod
    def load(cls, path: str) -> "Configuration":
        res = cls()
        #return res # for debug
        try:
            with open(path) as f:
                jsondata = f.read()
            data = json.loads(jsondata)
        except OSError:
            data = {}
        for i in range(len(res.hdrs)):
            hdr = res.hdrs[i]
            if hdr in data and type(data[hdr]) == str:
                res.strs[i] = data[hdr]
        if "delay" in data and type(data["delay"]) == int:
            res.delay = data["delay"]
        if "size" in data:
            if type(data["size"]) == float:
                res.size = int(data["size"])
            if type(data["size"]) == int:
                res.size = data["size"]
        if "font" in data and type(data["font"]) == int:
            res.font = data["font"]
        if "color" in data and type(data["color"]) == str and len(data["color"]) == 7 and data["color"][0] == '#':
            res.colour = (
                int(data["color"][1:3], 16)/256.0,
                int(data["color"][3:5], 16)/256.0,
                int(data["color"][5:], 16)/256.0
            )
        return res

    def save(self, path: str) -> None:
        colourstr: str = '#' + hex(int(255*self.colour[0]))[2:4] + hex(int(255*self.colour[1]))[2:4] + hex(int(255*self.colour[2]))[2:4]
        d = {
            "size": self.size,
            "font": self.font,
            "color": colourstr,
            "delay": self.delay,
        }
        for i in range(len(self.hdrs)):
            d[self.hdrs[i]] = self.strs[i]
        jsondata = json.dumps(d)
        with open(path, "w") as f:
            f.write(jsondata)
            f.close()


class SensibleNickApp(Application):
    state: int = 0
    since_state_change: int = 0

    def __init__(self, app_ctx: ApplicationContext) -> None:
        super().__init__(app_ctx)
        self._scale = 1.0
        self._led = 0.0
        self._led_bg = BLACK
        self._phase = 0.0
        self._en_scale = False
        self._en_scale_pressed = False
        self._en_iter = True
        self._en_iter_pressed = False
        self._filename = "/flash/nick.json"
        self._config = Configuration.load(self._filename)
        self._colours: list = [GO_GREEN, PUSH_RED, self._config.colour]
        self._en_colour = 2
        self.varprint: list(str) = [str for str in self._config.strs if len(str) > 0]

    def draw(self, ctx: Context) -> None:
        ctx.text_align = ctx.CENTER
        ctx.text_baseline = ctx.MIDDLE
        #ctx.font_size = self._config.size
        ctx.font = ctx.get_font_name(self._config.font)

        ctx.rgb(*BLACK).rectangle(-120, -120, 240, 240).fill()
        ctx.rgb(*self._colours[self._en_colour])
        ctx.move_to(0, 0)
        ctx.save()
        if not self._en_scale:
            ctx.scale(1.0, 1)
        else:
            ctx.scale(self._scale, 1)
        ctx.font_size = 100
        pre = ctx.text_width(self.varprint[self.state])
        ctx.font_size = 98*240/pre
        if ctx.font_size > 150:
            ctx.font_size = 150
        post = ctx.text_width(self.varprint[self.state])
        ctx.text(self.varprint[self.state])
        ctx.restore()

        leds.set_all_rgb(*self._led_bg)
        leds.set_hsv(int(self._led), abs(self._scale) * 360, 1, 1.0)

        leds.update()
        #ctx.fill()

    def on_exit(self) -> None:
        self._config.save(self._filename)

    def think(self, ins: InputState, delta_ms: int) -> None:
        super().think(ins, delta_ms)

        self._phase += delta_ms / 900
        self._scale = math.sin(self._phase)
        self._led += delta_ms / 100
        if self._led >= 40:
            self._led = 0
        self.since_state_change += delta_ms
        if (self.since_state_change / 1000) > self._config.delay:
            self.since_state_change = 0
            if self._en_iter:
                self.state += 1
            if self.state >= len(self.varprint):
                self.state = 0

        petals = captouch.read().petals
        for i in range(5):
            if petals[2*i].pressed and i < len(self.varprint):
                self.state = i
                self.since_state_change = 0

        for i in range(3):
            if petals[2*i+3].pressed:
                self._en_colour = i

        if petals[1].pressed:
            if not self._en_iter_pressed:
                self._en_iter = not self._en_iter
            self._led_bg = GO_GREEN if self._en_iter else PUSH_RED
        elif petals[9].pressed:
            if not self._en_scale_pressed:
                self._en_scale = not self._en_scale
                self._phase = 0.0
            self._led_bg = GO_GREEN if self._en_scale else PUSH_RED
        else:
            self._led_bg = BLACK
        self._en_iter_pressed = petals[1].pressed
        self._en_scale_pressed = petals[9].pressed

# For running with `mpremote run`:
if __name__ == "__main__":
    import st3m.run

    st3m.run.run_view(SensibleNickApp(ApplicationContext()))