import {
  Flex,
  Slider,
  Switch,
  Text,
  Field,
  Fieldset,
  Input,
  CheckboxCard,
  CheckboxGroup,
  Combobox,
  Portal,
  useFilter,
  useListCollection,
  Wrap,
  Badge, Separator, HStack, useSlotRecipe
} from "@chakra-ui/react";
import { useDashboardStore } from "@/store/useDashboardStore.jsx";
import { useState, useMemo } from "react";

export default function AlertChangeSettings({ widgetId, currentSettings }) {
  // STYLING
  const popoverRecipe = useSlotRecipe({ key: "glassPopover" });
  const popoverStyles = popoverRecipe();

  // STATE MANAGEMENT
  const updateSettings = useDashboardStore(
    (state) => state.updateWidgetSettings,
  );
  const [startError, setStartError] = useState(null);
  const [endError, setEndError] = useState(null);
  const [selectedVolcanoes, setSelectedVolcanoes] = useState([]);
  const { startsWith } = useFilter({ sensitivity: "base" });

  const { collection, filter, reset } = useListCollection({
    initialItems: volcanoes,
    filter: startsWith,
    limit: 10,
  });

  // FUNCTIONS
  const handleValueChange = (details) => {
    setSelectedVolcanoes(details.value)
  }

  return (
    <Flex direction="column" pb={2} overflowY="auto">
      <Fieldset.Root>
        <Fieldset.Content>
          {/* SELECTING DATE RANGE */}
          <HStack>
            <Text flexShrink="0" fontWeight="semibold">Date Range Selection</Text>
            <Separator flex="1" size="sm"/> {/*line seperator*/}
          </HStack>
          <Flex direction="column" w="100%" h="100%" justify="center" gap={2} pr={1}>
            {/* start date */}
            <Field.Root invalid={!!startError}>
              <Flex
                direction="row"
                w="100%"
                h="100%"
                align="center"
                justify="center"
              >
                <Text w="50%" align="center" justify="center" color="text">
                  Start Date
                </Text>
                <Flex direction="column" w="100%">
                  <Input
                    type="date"
                    css={popoverStyles.date}
                    value={currentSettings?.startDate || ""}
                    onChange={(e) => {
                      const value = e.target.value;
                      updateSettings(widgetId, {
                        ...currentSettings,
                        startDate: value,
                      });

                      const dateSelected = new Date(value);
                      const today = new Date();
                      today.setHours(0, 0, 0, 0);

                      if (value && dateSelected > today)
                        setStartError("Can't Choose a Future Date");
                      else setStartError("");
                    }}
                  />
                  {startError && (
                    <Field.ErrorText>{startError}</Field.ErrorText>
                  )}
                </Flex>
              </Flex>
            </Field.Root>

            {/* end date */}
            <Field.Root invalid={!!endError}>
              <Flex
                direction="row"
                w="100%"
                h="100%"
                align="center"
                justify="center"
              >
                <Text w="50%" align="center" justify="center" color="text">
                  End Date
                </Text>
                <Flex direction="column" w="100%">
                  <Input
                    type="date"
                    css={popoverStyles.date}

                    value={currentSettings?.endDate || ""}
                    onChange={(e) => {
                      const value = e.target.value;
                      updateSettings(widgetId, {
                        ...currentSettings,
                        endDate: value,
                      });

                      const dateSelected = new Date(value);
                      const today = new Date();
                      today.setHours(0, 0, 0, 0);

                      if (value && dateSelected > today)
                        setEndError("Can't Choose a Future Date");
                      else setEndError("");
                    }}
                  />
                  {endError && <Field.ErrorText>{endError}</Field.ErrorText>}
                </Flex>
              </Flex>
            </Field.Root>
          </Flex>

          {/* FILTERS */}
          <CheckboxGroup w="100%">
            <Flex direction="column" w="100%" gap={2}>
              <HStack>
                <Text flexShrink="0" fontWeight="semibold">Filters</Text>
                <Separator flex="1" size="sm"/> {/*line seperator*/}
              </HStack>

              {/* level increases */}
              <CheckboxCard.Root
                css={popoverStyles.checkboxcard}

                defaultChecked={currentSettings?.filters?.levelIncreases}
                onCheckedChange={(e) => {
                  updateSettings(widgetId, {
                    ...currentSettings,
                    filters: {
                      ...currentSettings.filters,
                      levelIncreases: e.checked,
                    },
                  });
                }}
              >
                <CheckboxCard.HiddenInput /> {/* when removed can't check/uncheck box */}
                <CheckboxCard.Control>
                  <CheckboxCard.Content>
                    <CheckboxCard.Label fontWeight={400}>
                      Level Increases
                    </CheckboxCard.Label>
                  </CheckboxCard.Content>
                  <CheckboxCard.Indicator css={popoverStyles.checkbox} />
                </CheckboxCard.Control>
              </CheckboxCard.Root>

              {/* level decreases */}
              <CheckboxCard.Root
                css={popoverStyles.checkboxcard}

                defaultChecked={currentSettings?.filters?.levelDecreases}
                onCheckedChange={(e) => {
                  updateSettings(widgetId, {
                    ...currentSettings,
                    filters: {
                      ...currentSettings.filters,
                      levelDecreases: e.checked,
                    },
                  });
                }}
              >
                <CheckboxCard.HiddenInput />
                <CheckboxCard.Control>
                  <CheckboxCard.Content>
                    <CheckboxCard.Label fontWeight={400}>
                      Level Decreases
                    </CheckboxCard.Label>
                  </CheckboxCard.Content>
                  <CheckboxCard.Indicator css={popoverStyles.checkbox} />
                </CheckboxCard.Control>
              </CheckboxCard.Root>

              {/* elevated levels */}
              <CheckboxCard.Root
                css={popoverStyles.checkboxcard}

                defaultChecked={currentSettings?.filters?.elevatedLevels}
                onCheckedChange={(e) => {
                  updateSettings(widgetId, {
                    ...currentSettings,
                    filters: {
                      ...currentSettings.filters,
                      elevatedLevels: e.checked,
                    },
                  });
                }}
              >
                <CheckboxCard.HiddenInput />
                <CheckboxCard.Control>
                  <CheckboxCard.Content>
                    <CheckboxCard.Label fontWeight={400}>
                      Only Elevated Levels
                    </CheckboxCard.Label>
                  </CheckboxCard.Content>
                  <CheckboxCard.Indicator css={popoverStyles.checkbox}/>
                </CheckboxCard.Control>
              </CheckboxCard.Root>
            </Flex>
          </CheckboxGroup>

          {/* select volcano to filter on */}
          <Combobox.Root
            mt={1}
            variant="subtle"
            multiple
            openOnClick
            collection={collection}
            onValueChange={handleValueChange}
            onInputValueChange={(e) => filter(e.inputValue)}
          >

            <Wrap gap="2">
              {selectedVolcanoes.map((volcano) => (
                <Badge key={volcano}>{volcano}</Badge>
              ))}
            </Wrap>

            <Combobox.Label fontSize="xs" >Select Volcano (s)</Combobox.Label>

            <Combobox.Control>
              <Combobox.Input placeholder="Type to search" borderRadius="lg"/>
              <Combobox.IndicatorGroup>
                <Combobox.ClearTrigger />
                <Combobox.Trigger onClick={reset} />
              </Combobox.IndicatorGroup>
            </Combobox.Control>
            <Portal>
              <Combobox.Positioner>
                <Combobox.Content>
                  {volcanoes.map((item) => (
                    <Combobox.Item item={item} key={item.value}>
                      {item.label}
                      <Combobox.ItemIndicator />
                    </Combobox.Item>
                  ))}
                  <Combobox.Empty>No items found</Combobox.Empty>
                </Combobox.Content>
              </Combobox.Positioner>
            </Portal>
          </Combobox.Root>
        </Fieldset.Content>
      </Fieldset.Root>
    </Flex>
  );
}

const volcanoes = [
  { label: "Mt. St. Helens", value: "helens" },
  { label: "Mt. Adams", value: "adams" },
  { label: "Rainier", value: "rainier" },
  { label: "The Three Sisters", value: "three sisters" },
  { label: "Fuego", value: "fuego" },
  { label: "Laki Laki", value: "lakilaki" },
  { label: "Lewotobi", value: "lewotobi" },
  { label: "Karangatang", value: "karangatang" },
  { label: "Cotopaxi", value: "cotopaxi" },
  { label: "Merapi", value: "merapi" },
  { label: "Marapi", value: "marapi" },
  { label: "Kick 'Em Jenny", value: "kick em jenny"}
]