import { Image, Text, TouchableOpacity, View } from "react-native-ui-lib";
import React, { useEffect, useState } from "react";
import { ProfileType, useAuthContext } from "@/contexts/AuthContext";
import { StyleSheet } from "react-native";
import { colorMap } from "@/constants/colorMap";
import { useAtom, useSetAtom } from "jotai";
import { isFamilyViewAtom, settingsPageIndex } from "../pages/calendar/atoms";
import { useGetFamilyMembers } from "@/hooks/firebase/useGetFamilyMembers";
import { UserProfile } from "@/hooks/firebase/types/profileTypes";
import CachedImage from "expo-cached-image";
import { router } from "expo-router";

const HeaderTemplate = (props: {
  message: string;
  isWelcome: boolean;
  children?: React.ReactNode;
  link?: React.ReactNode;
  isCalendar?: boolean;
  isToDos?: boolean;
  isBrainDump?: boolean;
  isGroceries?: boolean;
}) => {
  const { user, profileData } = useAuthContext();

  const { data: members, refetch } = useGetFamilyMembers();
  const [children, setChildren] = useState<UserProfile[]>([]);
  const [isFamilyView] = useAtom(isFamilyViewAtom);
  const setSettingsPageIndexAtom = useSetAtom(settingsPageIndex);

  const headerHeight: number =
    (props.isCalendar && 65.54) ||
    (props.isToDos && 84) ||
    (props.isGroceries && 72.09) ||
    65.54;

  const handlePfpPress = () => {
    setSettingsPageIndexAtom(1);
    router.push("/settings");
  };

  const styles = StyleSheet.create({
    pfp: {
      height: headerHeight,
      aspectRatio: 1,
      borderRadius: 22,
      overflow: "hidden",
      marginRight: 20,
      backgroundColor: profileData?.eventColor ?? colorMap.pink,
      zIndex: 100,
    },
    pfpTxt: {
      fontFamily: "Manrope_500Medium",
      fontSize: 30,
      color: "white",
    },
    childrenPfpArr: {
      width: 65.54,
      position: "absolute",
      bottom: -12.44,
      left: (children.length > 3 && -9) || 0,
      height: 27.32,
    },
    childrenPfp: {
      aspectRatio: 1,
      width: 27.32,
      backgroundColor: "#fd1575",
      borderRadius: 50,
      position: "absolute",
      borderWidth: 2,
      borderColor: "#f2f2f2",
    },
    bottomMarg: {
      marginBottom: isFamilyView ? 30 : 15,
    },
  });

  useEffect(() => {
    if (members) {
      const childrenMembers = members.filter(
        (member) =>
          member.userType === ProfileType.CHILD ||
          member.userType === ProfileType.CAREGIVER ||
          member.userType === ProfileType.PARENT
      );
      setChildren(childrenMembers);
    }
  }, []);

  return (
    <View row centerV marginV-15 style={styles.bottomMarg}>
      {profileData?.pfp ? (
        <View>
          <TouchableOpacity onPress={handlePfpPress}>
            <CachedImage
              source={{ uri: profileData.pfp }}
              style={[
                styles.pfp,
                (profileData.eventColor && {
                  borderWidth: 2,
                  borderColor: profileData.eventColor,
                }) ||
                  undefined,
              ]}
              cacheKey={profileData.pfp}
            />
          </TouchableOpacity>
          {isFamilyView && props.isCalendar && children.length > 0 && (
            <View style={styles.childrenPfpArr} row>
              {children.slice(0, 3).map((child, index) => {
                const bgColor: string = child.eventColor || colorMap.pink;
                return child.pfp ? (
                  <Image
                    source={{ uri: child.pfp }}
                    style={[styles.childrenPfp, { left: index * 19 }]}
                  />
                ) : (
                  <TouchableOpacity onPress={handlePfpPress}>
                    <View
                      style={[
                        styles.childrenPfp,
                        { left: index * 19, backgroundColor: bgColor },
                      ]}
                      center
                    >
                      <Text style={{ color: "white" }}>
                        {child?.firstName?.at(0)}
                        {child?.firstName?.at(1)}
                      </Text>
                    </View>
                  </TouchableOpacity>
                );
              })}
              {children?.length > 3 && (
                <View style={[styles.childrenPfp, { left: 3 * 19 }]} center>
                  <Text
                    style={{
                      color: "white",
                      fontFamily: "Manrope_600SemiBold",
                      fontSize: 12,
                    }}
                  >
                    +{children.length - 3}
                  </Text>
                </View>
              )}
            </View>
          )}
        </View>
      ) : (
        <>
          <TouchableOpacity onPress={handlePfpPress}>
            <View style={[styles.pfp, { zIndex: 200 }]} center>
              <Text style={styles.pfpTxt}>
                {profileData?.firstName?.at(0)}
                {profileData?.lastName?.at(0)}
              </Text>
            </View>
          </TouchableOpacity>
          {isFamilyView && props.isCalendar && children.length > 0 && (
            <View style={styles.childrenPfpArr} row>
              {children.slice(0, 3).map((child, index) => {
                const bgColor: string = child.eventColor || colorMap.pink;
                return child.pfp ? (
                  <Image
                    source={{ uri: child.pfp }}
                    style={[styles.childrenPfp, { left: index * 19 }]}
                  />
                ) : (
                  <TouchableOpacity onPress={handlePfpPress}>
                    <View
                      style={[
                        styles.childrenPfp,
                        { left: index * 19, backgroundColor: bgColor },
                      ]}
                      center
                    >
                      <Text style={{ color: "white" }}>
                        {child?.firstName?.at(0)}
                        {child?.firstName?.at(1)}
                      </Text>
                    </View>
                  </TouchableOpacity>
                );
              })}
              {children?.length > 3 && (
                <View style={[styles.childrenPfp, { left: 3 * 19 }]} center>
                  <Text
                    style={{
                      color: "white",
                      fontFamily: "Manrope_600SemiBold",
                      fontSize: 12,
                    }}
                  >
                    +{children.length - 3}
                  </Text>
                </View>
              )}
            </View>
          )}
        </>
      )}
      <View gap-3>
        {props.isWelcome && (
          <Text
            text70L
            style={{
              fontSize: 19,
              fontFamily: "Manrope_400Regular",
            }}
          >
            Welcome, {profileData?.firstName}!
          </Text>
        )}
        <Text
          text70B
          style={{ fontSize: 18, fontFamily: "Manrope_600SemiBold" }}
        >
          {props.message}
        </Text>
        {props.children && <View>{props.children}</View>}
        {props.link && <View marginT-8>{props.link}</View>}
      </View>
    </View>
  );
};

export default HeaderTemplate;