import React, { useRef } from 'react';
import styled from 'styled-components';
import { router } from 'expo-router';
import { useCallFeed } from '../hooks/useCallFeed';
import { Platform, Linking, View, ScrollView, Text, TouchableOpacity } from 'react-native';
import { useLocalSearchParams } from 'expo-router';
import { StatusBar } from 'expo-status-bar';
import { SafeAreaView } from 'react-native-safe-area-context';
import { Ionicons } from '@expo/vector-icons';
import { AccidentAndEmergency } from "healthicons-react-native/dist/outline";
import { Phone } from "healthicons-react-native/dist/filled";
import {
  PageHeader,
  PageFooter,
} from '@/components/generalHelpers.jsx';
import ActionSheet from 'react-native-actions-sheet';

const DepartmentActionSheet = styled(ActionSheet)``;

function fromBase64Unicode(str) {
  return new TextDecoder().decode(Uint8Array.from(atob(str), c => c.charCodeAt(0)));
}

export default function Call() {
  const { callDetails } = useLocalSearchParams();
  const actionSheetRef = useRef(null);
  const callFeed = useCallFeed(true);

  const {
    departments,
    callIconMap,
    callColorSelector,
    formatCallTimePast,
    formatCallDateTime
  } = callFeed;

  const {
    departmentTypeMap,
    accountDetails,
    selectedDepartment,
    setSelectedDepartment,
    updateSelectedDepartment,
    selectedDepartmentColorPicker,
    deptList,
  } = departments;

  const decoded = fromBase64Unicode(callDetails);

  const { incident, address, person, response } = JSON.parse(decoded);
  const { CallThemes } = accountDetails;
  const {
    incID,
    incNumber,
    jurisdictionNumber,
    serviceNumber,
    serviceID,
    incDate,
    incNature,
    incNatureCode,
    incNatureCodeDesc,
    notes,
    status,
    origin,
  } = incident;
  const {
    streetAddress,
    addressApartment,
    town,
    state,
    zipCode,
    latitude,
    longitude,
    county,
    intersection1,
    intersection2,
    locationName,
    weatherCondition,
  } = address;
  const {
    name,
    age,
    gender,
    statement,
    conscious,
    breathing,
    callBackNumber,
  } = person;
  const {
    units
  } = response;

  const SelectedIcon = callIconMap[incNature] || AccidentAndEmergency;

  const ownDepartmentResponse = units?.map((unit) => {
    if (unit?.department === selectedDepartment?.dept ||
      selectedDepartment?.addDepts?.includes(unit?.department)) {
      return unit;
    }
    return null;
  })?.filter((filterItem) => {
    return filterItem;
  });

  const mutualAidDepartmentResponse = units?.map((unit) => {
    if (unit?.department !== selectedDepartment?.dept &&
      !selectedDepartment?.addDepts?.includes(unit?.department)) {
      return unit;
    }
    return null;
  })?.filter((filterItem) => {
    return filterItem;
  });;

  const formatResponseTimes = (time) => {
    if (time === null || time === undefined || time === '') {
      return '';
    }
    const initTime = new Date(time);
    const hours = initTime.getHours().toString().padStart(2, '0');
    const minutes = initTime.getMinutes().toString().padStart(2, '0');
    return `${hours}:${minutes}`;
  };

  const openMaps = (latitude, longitude) => {
    const daddr = `${latitude},${longitude}`;
    const company = Platform.OS === "ios" ? "apple" : "google";
    Linking.openURL(`http://maps.${company}.com/maps?daddr=${daddr}`);
  };

  const callNumber = (number) => {
    const formattedNumber = number.replace(/[()\-\s]/g, '');
    Linking.openURL(`tel:${formattedNumber}`);
  };

  return (
    <React.Fragment>
      <PageHeader
        leftHeader={            <View style={{ flex: 1, alignItems: 'flex-start' }}>
              <TouchableOpacity
                onPress={router.back}
                style={{ flexDirection: 'row', alignItems: 'center' }}
              >
                <Ionicons name="chevron-back-outline" size={22} color="red" style={{ paddingLeft: 10 }} />
                <Text style={{ color: 'red', fontWeight: 600 }}>Back to Incidents</Text>
              </TouchableOpacity>
            </View>}
        centerHeader={<View style={{ flex: 1, alignItems: 'center' }}>
              <TouchableOpacity
                style={{
                  borderRadius: 6,
                  elevation: 3,
                  backgroundColor: '#fff',
                  shadowOffset: { width: 0, height: 0 },
                  shadowColor: '#333',
                  shadowOpacity: .8,
                  shadowRadius: 2,
                  paddingHorizontal: 10,
                  paddingVertical: 2,
                }}
                onPress={() => {
                  actionSheetRef.current?.show();
                }}
              >
                <Text
                  style={{
                    color: selectedDepartmentColorPicker(selectedDepartment?.type),
                    fontWeight: 600,
                    fontSize: 14
                  }}
                >
                  {selectedDepartment?.deptAbv}
                </Text>
              </TouchableOpacity>
            </View>}
            />
      <ScrollView showsVerticalScrollIndicator={false}>
        <StatusBar style="dark" />
        <SafeAreaView />
        <View style={{ flexDirection: 'column', padding: 20 }}>
          <View key="callDateAndTime"
            style={{
              paddingBottom: 6,
              paddingLeft: 10,
              paddingRight: 10,
              flexDirection: 'row',
              justifyContent: 'space-between'
            }}
          >
            <Text style={{ fontSize: 12 }}>{formatCallDateTime(incDate)}</Text>
            <Text style={{ fontSize: 12 }}>{formatCallTimePast(incDate)}</Text>
          </View>
          <View key="callDetails" style={{ padding: 2 }}>
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: callColorSelector(
                  incNatureCode,
                  incNature,
                  status
                ),
                shadowOpacity: 1,
                shadowRadius: 5,
                padding: 10,
              }}
            >
              <View style={{ flexDirection: 'column' }}>
                <View style={{ flexDirection: 'row', alignItems: 'center', maxWidth: '90%' }}>
                  <SelectedIcon
                    color={callColorSelector(
                      incNatureCode,
                      incNature,
                      status
                    )}
                    opacity={0.3}
                    width={56}
                    height={56}
                  />
                  <View style={{ flexDirection: 'column', maxWidth: '90%' }}>
                    <Text
                      style={{
                        color: 'black',
                        fontWeight: 600,
                        fontSize: 16
                      }}
                    >
                      {`${incNature}`}
                    </Text>
                    <View style={{ flexDirection: 'row', justifyContent: 'space-between', maxWidth: '90%' }}>
                      <Text
                        style={{
                          color: 'black',
                          fontSize: 12,
                          textShadowColor: callColorSelector(
                            incNatureCode,
                            incNature,
                            status
                          ),
                          textShadowRadius: 1
                        }}
                      >
                        {`${incNatureCodeDesc}`}
                      </Text>
                    </View>
                  </View>
                </View>
                <View style={{ flexDirection: 'row', justifyContent: 'space-between' }}>
                  {status.toLowerCase() === 'closed' ? (
                    <Text
                      style={{
                        fontSize: 12,
                        fontWeight: 600,
                        color: '#'
                      }}
                    >
                      This Incident is Closed.
                    </Text>
                  ) : <Text></Text>}
                  <Text
                    style={{
                      fontSize: 12,
                      textAlign: 'right'
                    }}
                  >
                    {`Incident #: ${serviceNumber}`}
                  </Text>
                </View>
              </View>
            </View>
          </View>
          <View style={{ margin: 6 }} />
          <View key="callLocation" style={{ padding: 2 }}>
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                padding: 10,
              }}
            >
              <View
                style={{
                  flexDirection: 'row',
                  alignItems: 'top',
                  justifyContent: 'space-between'
                }}
              >
                <View style={{ flexDirection: 'column', maxWidth: '70%' }}>
                  {locationName ? (
                    <Text
                      style={{
                        color: 'black',
                        fontWeight: 600,
                        fontSize: 16
                      }}
                    >
                      {`${locationName}`}
                    </Text>
                  ) : null}
                  <TouchableOpacity
                    onLongPress={() => {
                      return openMaps(latitude, longitude);
                    }}
                  >
                    <Text
                      style={[{
                        color: 'black',
                      }, locationName ? {} : { fontSize: 12, fontWeight: 600 }]}
                    >
                      {`${streetAddress}`}
                    </Text>
                    <Text
                      style={[{
                        color: 'black',
                      }, locationName ? {} : { fontSize: 12, fontWeight: 600 }]}
                    >
                      {`${town}, ${state}`}
                    </Text>
                  </TouchableOpacity>
                  {addressApartment ? (
                    <View>
                      <View style={{ margin: 10 }} />
                      <Text
                        style={[{
                          color: 'black',
                        }, locationName ? {} : { fontSize: 12, fontWeight: 600 }]}
                      >
                        {`${addressApartment}`}
                      </Text>
                    </View>
                  ) : null}
                </View>
                <View style={{ flexDirection: 'column' }}>
                  <View
                    style={{
                      borderRadius: 12,
                      elevation: 3,
                      backgroundColor: '#fff',
                      shadowOffset: { width: 0, height: 0 },
                      shadowColor: 'grey',
                      shadowOpacity: 1,
                      shadowRadius: 1,
                      padding: 25,
                    }}
                  >
                    <Text style={{ fontSize: 12 }}>Map</Text>
                  </View>
                  <TouchableOpacity
                    style={{
                      borderRadius: 12,
                      elevation: 3,
                      backgroundColor: '#ECEDEE',
                      shadowOffset: { width: 0, height: 0 },
                      shadowColor: 'grey',
                      shadowOpacity: 1,
                      shadowRadius: 1,
                      marginTop: 6,
                      paddingLeft: 6,
                      paddingVertical: 6,
                      flexDirection: 'row',
                      justifyContent: 'center'
                    }}
                    onPress={() => {
                      return openMaps(latitude, longitude);
                    }}
                  >
                    <Text style={{ fontSize: 10 }}>Nav</Text>
                    <Ionicons name="chevron-forward-outline" />
                  </TouchableOpacity>
                </View>
              </View>
            </View>
          </View>
          <View style={{ margin: 6 }} />
          <View key="callCrossStreets"
            style={{
              padding: 2,
              flexDirection: 'row',
              justifyContent: 'space-evenly',
              marginHorizontal: 2,
            }}
          >
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                paddingVertical: 14,
                width: "48%"
              }}
            >
              <Text
                style={{
                  fontSize: 12,
                  fontWeight: 600,
                  textAlign: 'center'
                }}
              >
                {intersection1}
              </Text>
            </View>
            <View style={{ paddingHorizontal: "2%" }} />
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                paddingVertical: 14,
                width: "48%"
              }}
            >
              <Text
                style={{
                  fontSize: 12,
                  fontWeight: 600,
                  textAlign: 'center'
                }}
              >
                {intersection2}
              </Text>
            </View>
          </View>
          <View style={{ margin: 6 }} />
          <View key="callerInformation" style={{ padding: 2 }}>
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                padding: 10,
              }}
            >
              {selectedDepartment?.supervisor ? (
                <View>
                  <View>
                    <View
                      style={{
                        flexDirection: 'row',
                        alignItems: 'center',
                        justifyContent: 'space-between',
                        marginHorizontal: 10
                      }}
                    >
                      <View style={{ flexDirection: 'column' }}>
                        <Text
                          style={{
                            color: 'black',
                            fontWeight: 600,
                            fontSize: 16
                          }}
                        >
                          {`${name}`}
                        </Text>
                        <TouchableOpacity
                          onLongPress={() => {
                            return callNumber(callBackNumber);
                          }}
                        >
                          <Text
                            style={{ color: 'black', fontSize: 12 }}
                          >
                            {`${callBackNumber}`}
                          </Text>
                        </TouchableOpacity>
                      </View>
                      <TouchableOpacity
                        onLongPress={() => {
                          return callNumber(callBackNumber);
                        }}
                      >
                        <Phone
                          color='blue'
                          opacity={0.3}
                          width={32}
                          height={32}
                        />
                      </TouchableOpacity>
                    </View>
                  </View>
                  <View
                    style={{
                      marginVertical: 5,
                      height: 1,
                      width: '100%',
                      backgroundColor: 'grey'
                    }}
                  />
                </View>
              ) : null}
              <View style={{ alignItems: 'center' }}>
                <View style={{ flexDirection: 'row' }}>
                  <Text style={{ fontSize: 14 }}>
                    {`${age} `}
                  </Text>
                  <Text style={{ fontSize: 14 }}>
                    {`${gender} - `}
                  </Text>
                  <Text style={{ fontSize: 14 }}>
                    {`Conscious: ${conscious} | `}
                  </Text>
                  <Text style={{ fontSize: 14 }}>
                    {`Breathing: ${breathing}`}
                  </Text>
                </View>
                <Text style={{ fontSize: 12 }}>
                  {`${statement}`}
                </Text>
              </View>
            </View>
          </View>
          <View style={{ alignItems: 'center' }}>
            <View
              style={{
                marginVertical: 10,
                height: 2,
                width: '95%',
                backgroundColor: 'grey'
              }}
            />
          </View>
          <View key="respondingUnitInformation" style={{ padding: 2 }}>
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                padding: 10,
              }}
            >
              <View style={{ flexDirection: 'column' }}>
                {units?.length > 0 ? (
                  <View>
                    {ownDepartmentResponse?.length > 0 ? (
                      <View>
                        <View>
                          <View style={{ flexDirection: 'row', justifyContent: 'space-evenly', alignItems: 'center' }}>
                            <Text style={{ fontWeight: '600', textAlign: 'center', flex: 1 }}>Units</Text>
                            <Text style={{ textAlign: 'center', flex: 1 }}>Disp</Text>
                            <Text style={{ textAlign: 'center', flex: 1 }}>Resp</Text>
                            <Text style={{ textAlign: 'center', flex: 1 }}>Arr</Text>
                            {selectedDepartment?.type === 'EMS' || selectedDepartment?.type === 'Rescue' ? (
                              <Text style={{ textAlign: 'center', flex: 1 }}>Trans</Text>
                            ) : null}
                            <Text style={{ textAlign: 'center', flex: 1 }}>BIS</Text>
                          </View>
                          <View
                            style={{
                              marginVertical: 5,
                              height: 1,
                              width: '95%',
                              backgroundColor: 'grey',
                              alignSelf: 'center'
                            }}
                          />
                          <View
                            style={{
                              flex: 1,
                              alignItems: 'center',
                              justifyContent: 'center'
                            }}
                          >
                            {ownDepartmentResponse?.map((unit) => {
                              return (
                                <View key={unit?.unit}
                                  style={{
                                    flex: 1,
                                    alignSelf: 'stretch',
                                    flexDirection: 'row',
                                    justifyContent: 'space-evenly',
                                    alignItems: 'center'
                                  }}
                                >
                                  <Text
                                    style={{
                                      fontSize: 12,
                                      fontWeight: 600,
                                      textAlign: 'center',
                                      flex: 1
                                    }}
                                  >
                                    {unit?.unit}
                                  </Text>
                                  <Text style={{ textAlign: 'center', flex: 1 }}>
                                    {formatResponseTimes(unit?.dispatched)}
                                  </Text>
                                  <Text style={{ textAlign: 'center', flex: 1 }}>
                                    {formatResponseTimes(unit?.responding)}
                                  </Text>
                                  <Text style={{ textAlign: 'center', flex: 1 }}>
                                    {formatResponseTimes(unit?.onScene)}
                                  </Text>
                                  {selectedDepartment?.type === 'EMS' ||
                                    selectedDepartment?.type === 'Rescue' ? (
                                    <Text style={{ textAlign: 'center', flex: 1 }}>
                                      {formatResponseTimes(unit?.transporting)}
                                    </Text>
                                  ) : null}
                                  <Text style={{ textAlign: 'center', flex: 1 }}>
                                    {formatResponseTimes(unit?.inService)}
                                  </Text>
                                </View>
                              )
                            })}
                          </View>
                        </View>
                      </View>
                    ) : (
                      <View style={{ alignItems: 'center' }}>
                        <Text
                          style={{
                            textAlign: 'center'
                          }}
                        >
                          {`No ${selectedDepartment?.dept} Units Responding`}
                        </Text>
                      </View>
                    )}
                    {mutualAidDepartmentResponse?.length > 0 ? (
                      <View>
                        <View
                          style={{
                            marginVertical: 5,
                            height: 2,
                            width: '100%',
                            backgroundColor: 'grey',
                          }}
                        />
                        <View style={{ flexDirection: 'row', justifyContent: 'space-evenly', alignItems: 'center' }}>
                          <Text style={{ fontWeight: '600', textAlign: 'center', flex: 1 }}>M/A</Text>
                          <Text style={{ textAlign: 'center', flex: 1 }}>Disp</Text>
                          <Text style={{ textAlign: 'center', flex: 1 }}>Resp</Text>
                          <Text style={{ textAlign: 'center', flex: 1 }}>Arr</Text>
                          {selectedDepartment?.type === 'EMS' || selectedDepartment?.type === 'Rescue' ? (
                            <Text style={{ textAlign: 'center', flex: 1 }}>Trans</Text>
                          ) : null}
                          <Text style={{ textAlign: 'center', flex: 1 }}>BIS</Text>
                        </View>
                        <View
                          style={{
                            marginVertical: 5,
                            height: 1,
                            width: '95%',
                            backgroundColor: 'grey',
                            alignSelf: 'center'
                          }}
                        />
                        {mutualAidDepartmentResponse?.map((unit) => {
                          return (
                            <View key={unit?.unit}
                              style={{
                                flex: 1,
                                alignSelf: 'stretch',
                                flexDirection: 'row',
                                justifyContent: 'space-evenly',
                                alignItems: 'center'
                              }}
                            >
                              <Text
                                style={{
                                  fontSize: 12,
                                  fontWeight: 600,
                                  textAlign: 'center',
                                  flex: 1
                                }}
                              >
                                {unit?.unit}
                              </Text>
                              <Text style={{ textAlign: 'center', flex: 1 }}>
                                {formatResponseTimes(unit?.dispatched)}
                              </Text>
                              <Text style={{ textAlign: 'center', flex: 1 }}>
                                {formatResponseTimes(unit?.responding)}
                              </Text>
                              <Text style={{ textAlign: 'center', flex: 1 }}>
                                {formatResponseTimes(unit?.onScene)}
                              </Text>
                              {selectedDepartment?.type === 'EMS' ||
                                selectedDepartment?.type === 'Rescue' ? (
                                <Text style={{ textAlign: 'center', flex: 1 }}>
                                  {formatResponseTimes(unit?.transporting)}
                                </Text>
                              ) : null}
                              <Text style={{ textAlign: 'center', flex: 1 }}>
                                {formatResponseTimes(unit?.inService)}
                              </Text>
                            </View>
                          )
                        })}
                      </View>
                    ) : null}
                  </View>
                ) : (
                  <View style={{ alignItems: 'center' }}>
                    <Text>No Units Responding</Text>
                  </View>
                )}
              </View>
            </View>
          </View>
          <View style={{ margin: 6 }} />
          <Text
            style={{
              color: 'grey',
              fontWeight: 600,
              paddingLeft: 10
            }}
          >
            Incident Notes
          </Text>
          <View style={{ margin: 2 }} />
          <View key="incidentNotes" style={{ padding: 2 }}>
            <View
              style={{
                borderRadius: 12,
                elevation: 3,
                backgroundColor: '#fff',
                shadowOffset: { width: 0, height: 0 },
                shadowColor: 'grey',
                shadowOpacity: 1,
                shadowRadius: 1,
                padding: 10,
                minHeight: 200
              }}
            >
              {notes?.split('\n').map((note, index) => (
                <View key={`notes-${index}`}>
                  <Text>{note}</Text>
                  {index < notes.split('\n').length - 1 && (
                    <View
                      style={{
                        height: 1,
                        backgroundColor: 'grey',
                        marginVertical: 10
                      }}
                    />
                  )}
                </View>
              ))}
            </View>
          </View>
        </View>
      </ScrollView>
      <PageFooter>
        <View
          style={{
            flexDirection: 'column',
            height: 100,
            alignItems: 'center',
            justifyContent: 'flex-start',
            paddingTop: 7
          }}
        />
      </PageFooter>
      <DepartmentActionSheet
        ref={actionSheetRef}
        gestureEnabled
        containerStyle={{
          height: "50%",
          width: "100%",
          backgroundColor: '#ECEDEE',
        }}
      >
        <View style={{ flexDirection: 'column', padding: 20 }}>
          {deptList?.map((item) => {
            return (
              <View style={{ padding: 2 }} key={item?.deptId}>
                <TouchableOpacity
                  style={{
                    borderRadius: 6,
                    elevation: 3,
                    backgroundColor: item?.selected ? 'grey' : '#fff',
                    shadowOffset: { width: 1, height: 1 },
                    shadowColor: '#333',
                    shadowOpacity: 0.3,
                    shadowRadius: 2,
                    marginHorizontal: 20,
                    marginVertical: 6,
                    padding: 10
                  }}
                  onPress={() => {
                    actionSheetRef.current?.hide();
                    return updateSelectedDepartment(
                      selectedDepartment?.deptId,
                      item?.deptId
                    )
                  }}
                >
                  <View style={{ flexDirection: 'row', justifyContent: 'space-between' }}>
                    <Text
                      style={{
                        color: selectedDepartmentColorPicker(
                          item?.type
                        ),
                        fontWeight: 600,
                        fontSize: '16'
                      }}
                    >
                      {item?.dept}
                    </Text>
                    {item?.primary ? <Ionicons name="star" size={16} color="yellow" style={{
                      paddingLeft: 20,
                      shadowColor: '#333',
                      shadowOffset: 1,
                      shadowOpacity: 1,
                      shadowRadius: 6
                    }} /> : null}
                  </View>
                  <Text>{`${item?.deptAbv} - ${departmentTypeMap[item?.type]}`}</Text>
                </TouchableOpacity>
              </View>
            );
          })}
        </View>
      </DepartmentActionSheet>
    </React.Fragment>
  );
}