import type { AvatarShape, AvatarStyle } from "@rakazo/contracts";
import {
  ACTIVE_RUN_STATUSES,
  avatarIdentitySeed,
  avatarShapePath,
  organicAvatarPath,
} from "@rakazo/core";
import { memo, useEffect, useState } from "react";
import { Image, View } from "react-native";
import Animated, {
  cancelAnimation,
  Easing,
  useAnimatedProps,
  useAnimatedStyle,
  useReducedMotion,
  useSharedValue,
  withRepeat,
  withTiming,
} from "react-native-reanimated";
import Svg, { G, Path, Rect } from "react-native-svg";
import { authHeaders, currentApiBase } from "../lib/api";
import { workingAvatarDuration, workingAvatarFrame } from "../lib/avatar-motion";
import { useAvatarStyle } from "./avatar-style";
import { NativeSymbol } from "./native-symbol";

const AnimatedRect = Animated.createAnimatedComponent(Rect);

export const BotAvatar = memo(function BotAvatar({
  color,
  size = 54,
  status,
  identity,
  variant,
  shape,
  imageSrc,
  muted = false,
}: {
  color: string;
  size?: number;
  status?: string;
  identity?: string;
  variant?: AvatarStyle;
  shape?: AvatarShape | null;
  imageSrc?: string;
  muted?: boolean;
}) {
  const isWorking = ACTIVE_RUN_STATUSES.some((activeStatus) => activeStatus === status);
  const { avatarStyle } = useAvatarStyle();
  const visorW = Math.round(size * 0.68);
  const visorH = Math.round(size * 0.44);
  const eyeW = Math.max(3, Math.round(size * 0.11));
  const eyeH = Math.max(4, Math.round(size * 0.17));
  const gap = Math.max(3, Math.round(size * 0.11));
  const face = variant ?? avatarStyle;
  const clipShape = shape ?? "circle";
  return (
    <View style={{ width: size, height: size }}>
      {imageSrc ? (
        <AvatarImage src={imageSrc} size={size} shape={clipShape} />
      ) : face === "organic" ? (
        <OrganicAvatar
          color={color}
          identity={identity}
          size={size}
          isWorking={isWorking}
          shape={shape}
        />
      ) : (
        <View style={{ width: size, height: size, alignItems: "center", justifyContent: "center" }}>
          <Svg
            width={size}
            height={size}
            viewBox="-60 -60 120 120"
            style={{ position: "absolute" }}
          >
            <Path d={avatarShapePath(clipShape)} fill={color} />
          </Svg>
          <View
            style={{
              width: visorW,
              height: visorH,
              borderRadius: Math.round(visorH * 0.52),
              backgroundColor: "#0C0C0E",
              flexDirection: "row",
              alignItems: "center",
              justifyContent: "center",
              gap,
            }}
          >
            {[0, 1].map((eye) => (
              <View
                key={eye}
                style={{
                  width: eyeW,
                  height: eyeH,
                  borderRadius: Math.max(2, Math.round(eyeW * 0.6)),
                  backgroundColor: "#fff",
                }}
              />
            ))}
          </View>
        </View>
      )}
      {isWorking ? (
        <View
          accessibilityLabel="Working"
          style={{
            position: "absolute",
            right: muted ? undefined : 0,
            left: muted ? 0 : undefined,
            bottom: 0,
            width: Math.max(6, Math.round(size * 0.18)),
            height: Math.max(6, Math.round(size * 0.18)),
            borderRadius: size,
            backgroundColor: "#F5A03C",
          }}
        />
      ) : null}
      {muted ? (
        <View
          accessible
          accessibilityLabel="Notifications silenced"
          style={{
            position: "absolute",
            right: -2,
            bottom: -2,
            width: Math.max(14, Math.round(size * 0.34)),
            height: Math.max(14, Math.round(size * 0.34)),
            borderRadius: size,
            borderWidth: 2,
            borderColor: "#000",
            backgroundColor: "#242428",
            alignItems: "center",
            justifyContent: "center",
          }}
        >
          <NativeSymbol
            ios="bell.slash.fill"
            android="notifications-off"
            size={Math.max(8, Math.round(size * 0.17))}
            color="#ECECEE"
          />
        </View>
      ) : null}
    </View>
  );
});

function AvatarImage({ src, size, shape }: { src: string; size: number; shape: AvatarShape }) {
  const [headers, setHeaders] = useState<Record<string, string>>({});
  useEffect(() => {
    void authHeaders().then(setHeaders);
  }, []);
  const uri = src.startsWith("http") ? src : `${currentApiBase()}${src}`;
  return (
    <Image
      source={{ uri, headers }}
      accessibilityIgnoresInvertColors
      style={{
        width: size,
        height: size,
        borderRadius: shape === "circle" ? size / 2 : Math.round(size * 0.18),
      }}
    />
  );
}

function OrganicAvatar({
  color,
  identity,
  size,
  isWorking,
  shape,
}: {
  color: string;
  identity?: string;
  size: number;
  isWorking: boolean;
  shape?: AvatarShape | null;
}) {
  const seed = avatarIdentitySeed(identity || color || "#8B5CF6");
  const progress = useSharedValue(0);
  const reducedMotion = useReducedMotion();

  useEffect(() => {
    cancelAnimation(progress);
    progress.value = 0;
    if (isWorking && !reducedMotion) {
      progress.value = withRepeat(
        withTiming(1, {
          duration: workingAvatarDuration(seed),
          easing: Easing.linear,
        }),
        -1,
      );
    }
    return () => cancelAnimation(progress);
  }, [isWorking, progress, reducedMotion, seed]);

  const bodyStyle = useAnimatedStyle(() => {
    const frame = workingAvatarFrame(seed, progress.value);
    return {
      transform: [
        { translateX: (frame.translationX * size) / 120 },
        { translateY: (frame.translationY * size) / 120 },
        { rotate: `${frame.rotation}deg` },
        { scaleX: frame.scaleX },
        { scaleY: frame.scaleY },
      ],
    };
  });
  const leftEyeProps = useAnimatedProps(() => {
    const frame = workingAvatarFrame(seed, progress.value);
    return { x: -14 + frame.eyeOffsetX, y: -12 + frame.eyeOffsetY };
  });
  const rightEyeProps = useAnimatedProps(() => {
    const frame = workingAvatarFrame(seed, progress.value);
    return { x: 7 + frame.eyeOffsetX, y: -12 + frame.eyeOffsetY };
  });

  return (
    <View style={{ width: size, height: size }}>
      <Animated.View style={[{ width: size, height: size }, bodyStyle]}>
        <Svg width={size} height={size} viewBox="-60 -60 120 120">
          <Path d={shape ? avatarShapePath(shape) : organicAvatarPath(seed)} fill={color} />
          <G transform={`rotate(${(seed % 9) - 4})`}>
            <AnimatedRect
              animatedProps={leftEyeProps}
              width={7}
              height={24}
              rx={3.5}
              fill="#101014"
            />
            <AnimatedRect
              animatedProps={rightEyeProps}
              width={7}
              height={24}
              rx={3.5}
              fill="#101014"
            />
          </G>
        </Svg>
      </Animated.View>
    </View>
  );
}