"use client"

import {
  getProjectList,
  getProjectTypeList,
  projectCollect,
} from "@/components/label/api/project"
import { Project } from "@/components/label/api/project/typing"
import {
  initAllParams,
  initCollectParams,
  initDynamicParams,
  useAllUserStore,
  useProjectStore,
} from "@/components/label/store/auth"
import {
  projectLabelTypeOpts,
  projectStatusOpts,
  STATUS_CODE,
} from "@/components/label/utils/constants"
import {
  ActionIcon,
  Badge,
  Button,
  Collapse,
  Flex,
  Group,
  Loader,
  Pagination,
  Paper,
  Select,
  SimpleGrid,
  Stack,
  Text,
  TextInput,
  UnstyledButton,
} from "@mantine/core"
import { notifications } from "@mantine/notifications"
import {
  IconCalendar,
  IconChevronDown,
  IconChevronUp,
  IconRefresh,
  IconSearch,
  IconStar,
  IconStarFilled,
} from "@tabler/icons-react"
import dayjs from "dayjs"
import { User2 } from "lucide-react"
import { useRouter, useSearchParams } from "next/navigation"
import { useCallback, useEffect, useMemo, useState } from "react"
import { CardCoverIcon } from "./components/ProjectIcon"

type PageType = "all" | "collect" | "dynamic"

function statusBadgeColor(status?: number | null) {
  if (!status) return "gray"
  if ([191, 199, 700].includes(status)) return "red"
  if ([580].includes(status)) return "yellow"
  if ([600].includes(status)) return "green"
  if ([201, 202, 203].includes(status)) return "cyan"
  return "blue"
}

function parseStatusValue(value?: string) {
  if (!value) return undefined
  if (value.includes(",")) {
    return value
      .split(",")
      .map((v) => Number(v))
      .filter((n) => Number.isFinite(n))
  }
  const n = Number(value)
  return Number.isFinite(n) ? [n] : undefined
}

export default function CollectionPage() {
  const router = useRouter()
  const urlParams = useSearchParams()
  const type = (urlParams.get("type") as PageType | null) ?? "collect"

  const { userOpts } = useAllUserStore()
  const {
    allParams,
    allTotal,
    collectParams,
    collectTotal,
    dynamicParams,
    dynamicTotal,
    resetParams,
    setSearchParams,
    setTotal,
  }: any = useProjectStore()

  const storeParams = useMemo(() => {
    return type === "collect"
      ? collectParams
      : type === "dynamic"
        ? dynamicParams
        : allParams
  }, [allParams, collectParams, dynamicParams, type])

  const total = useMemo(() => {
    return type === "collect"
      ? collectTotal
      : type === "dynamic"
        ? dynamicTotal
        : allTotal
  }, [allTotal, collectTotal, dynamicTotal, type])

  const [typeOpts, setTypeOpts] = useState<
    Array<{ label: string; value: string }>
  >([])
  const [loading, setLoading] = useState(false)
  const [records, setRecords] = useState<Project.DataProps[]>([])

  const [searchExpanded, setSearchExpanded] = useState(false)
  const [filters, setFilters] = useState(() => {
    return {
      project_name: "",
      project_type: "",
      status: "",
      owner: "",
      label_type: "",
      admin_user: "",
      start_date: dayjs().subtract(6, "day").format("YYYY-MM-DD"),
      end_date: dayjs().format("YYYY-MM-DD"),
    }
  })

  const [appliedFilters, setAppliedFilters] = useState(filters)
  const [queryTrigger, setQueryTrigger] = useState(0)

  useEffect(() => {
    const initFormOpts = async () => {
      const res = await getProjectTypeList()
      setTypeOpts((res ?? []).map((name) => ({ label: name, value: name })))
    }
    initFormOpts()
  }, [])

  const queryParams = useMemo(() => {
    const base =
      type === "collect"
        ? { ...initCollectParams }
        : type === "dynamic"
          ? { ...initDynamicParams }
          : { ...initAllParams }

    const params: Project.ListRequest & any = {
      ...base,
      ...storeParams,
      page_number: storeParams.page_number ?? 1,
      page_size: storeParams.page_size ?? 15,
      project_name: appliedFilters.project_name || undefined,
      project_type: appliedFilters.project_type || undefined,
      owner: appliedFilters.owner || undefined,
      admin_user: appliedFilters.admin_user || undefined,
      start_date: appliedFilters.start_date || undefined,
      end_date: appliedFilters.end_date || undefined,
      label_type: appliedFilters.label_type
        ? Number(appliedFilters.label_type)
        : undefined,
      status: parseStatusValue(appliedFilters.status),
    }

    return params
  }, [appliedFilters, storeParams, type])

  const load = useCallback(async () => {
    if (!queryTrigger) return
    setLoading(true)
    try {
      const res = await getProjectList(queryParams)
      setRecords(res?.project_list ?? [])
      setTotal(res?.total_items ?? 0, type)
    } catch (e) {
      setRecords([])
      setTotal(0, type)
      notifications.show({
        color: "red",
        title: "加载失败",
        message: e instanceof Error ? e.message : "请求失败",
      })
    } finally {
      setLoading(false)
    }
  }, [queryParams, queryTrigger, setTotal, type])

  useEffect(() => {
    load()
  }, [load])

  useEffect(() => {
    queueMicrotask(() => {
      setQueryTrigger((v) => v + 1)
    })
  }, [])

  const currentPage = storeParams.page_number ?? 1
  const pageSize = storeParams.page_size ?? 15

  const ProjectCard = (record: Project.DataProps) => {
    return (
      <Paper
        key={record.id}
        withBorder
        radius="md"
        shadow="sm"
        style={{
          borderColor: "rgba(0,0,0,0.06)",
          height: 240,
          padding: 14,
          display: "flex",
          flexDirection: "column",
          justifyContent: "space-between",
          background: "white",
        }}>
        <Group justify="space-between" wrap="nowrap">
          <Flex flex={1}>
            <CardCoverIcon width={68} height={68} />
            <Stack gap={0}>
              <Flex align="center">
                <UnstyledButton
                  variant="subtle"
                  size="sm"
                  style={{
                    paddingLeft: 6,
                    paddingRight: 6,
                    justifyContent: "flex-start",
                    width: "100%",
                  }}
                  onClick={() => {
                    const url = type
                      ? `/management/person/collection/detail?id=${record.id}&type=${type}`
                      : `/management/person/collection/detail?id=${record.id}`
                    router.push(url)
                  }}>
                  <Text
                    fw={700}
                    c={"brand"}
                    style={{
                      maxWidth: "100%",
                      overflow: "hidden",
                      textOverflow: "ellipsis",
                      whiteSpace: "nowrap",
                    }}>
                    {record.name}
                  </Text>
                </UnstyledButton>
                <Badge
                  color={statusBadgeColor(record.status)}
                  style={{
                    width: "-webkit-fill-available",
                  }}>
                  {STATUS_CODE.get(record.status) ?? record.status}
                </Badge>
              </Flex>
              <Flex align="center" px={6} gap={6}>
                <User2
                  color="var(--mantine-color-dimmed)"
                  width={14}
                  height={14}
                />
                <Text size="sm">{record.owner ?? "-"}</Text>
              </Flex>
              <Flex align="center" px={6} gap={6}>
                <IconCalendar
                  color="var(--mantine-color-dimmed)"
                  width={14}
                  height={14}
                />
                <Text size="sm">
                  {record.create_at ? record.create_at.split(" ")[0] : "-"}
                </Text>
              </Flex>
            </Stack>
          </Flex>
          <ActionIcon
            variant="subtle"
            color={record.is_collect ? "yellow" : "gray"}
            onClick={async () => {
              try {
                await projectCollect({
                  project_id: record.id,
                  is_collect: !record.is_collect,
                })
                notifications.show({
                  color: "green",
                  title: "操作成功",
                  message: record.is_collect ? "已取消收藏" : "已收藏",
                })
                setQueryTrigger((v) => v + 1)
              } catch (e) {
                notifications.show({
                  color: "red",
                  title: "操作失败",
                  message: e instanceof Error ? e.message : "请求失败",
                })
              }
            }}>
            {record.is_collect ? (
              <IconStarFilled size={16} />
            ) : (
              <IconStar size={16} />
            )}
          </ActionIcon>
        </Group>

        <Stack gap={6} style={{ flex: 1, minHeight: 0, marginTop: 8 }}>
          <Text size="sm" c="dimmed">
            备注：{record.remarks ? record.remarks : "暂无备注"}
          </Text>
        </Stack>
      </Paper>
    )
  }

  const PaginationBar = (props: {
    currentPage: number
    pageSize: number
    total: number
    onChangePage: (page: number) => void
    onChangePageSize: (size: number) => void
  }) => {
    const pageCount = Math.max(
      1,
      Math.ceil((props.total ?? 0) / props.pageSize)
    )
    return (
      <div
        style={{
          height: 36,
          display: "flex",
          alignItems: "center",
          justifyContent: "flex-end",
          gap: 12,
          paddingLeft: 12,
          paddingRight: 12,
        }}>
        <Select
          size="xs"
          value={String(props.pageSize)}
          data={[15, 45, 99].map((n) => ({
            label: `${n}/页`,
            value: String(n),
          }))}
          onChange={(v) => {
            const next = Number(v)
            if (!Number.isFinite(next)) return
            props.onChangePageSize(next)
          }}
          allowDeselect={false}
          style={{ width: 92 }}
        />
        <Pagination
          size="sm"
          withControls
          total={pageCount}
          value={Math.min(props.currentPage, pageCount)}
          onChange={props.onChangePage}
        />
      </div>
    )
  }

  return (
    <Stack w="100%" h="calc(100vh - 56px)" p="md" gap="md">
      <Paper
        withBorder
        p="md"
        radius="md"
        style={{ borderColor: "rgba(0,0,0,0.06)" }}>
        <Group justify="space-between" wrap="wrap" gap="sm">
          {/* <SegmentedControl
            value={type}
            data={[
              { label: "全部项目", value: "all" },
              { label: "我的收藏", value: "collect" },
              { label: "动态项目", value: "dynamic" },
            ]}
            onChange={(v) => {
              const next = v as PageType
              router.replace(`/management/person/collection?type=${next}`)
            }}
          /> */}
          <Group gap="xs">
            <Text fw={700}>我的收藏</Text>
            <Button
              size="xs"
              variant="transparent"
              rightSection={
                searchExpanded ? (
                  <IconChevronUp size={16} />
                ) : (
                  <IconChevronDown size={16} />
                )
              }
              onClick={() => setSearchExpanded((v) => !v)}>
              {searchExpanded ? "收起筛选" : "展开筛选"}
            </Button>
          </Group>
          <Group gap="xs">
            <Button
              size="xs"
              radius="xs"
              variant="default"
              leftSection={<IconRefresh size={16} />}
              onClick={() => {
                resetParams(type)
                const next = {
                  project_name: "",
                  project_type: "",
                  status: "",
                  owner: "",
                  label_type: "",
                  admin_user: "",
                  start_date: dayjs().subtract(6, "day").format("YYYY-MM-DD"),
                  end_date: dayjs().format("YYYY-MM-DD"),
                }
                setFilters(next)
                setAppliedFilters(next)
                setQueryTrigger((v) => v + 1)
              }}>
              重置
            </Button>
            <Button
              size="xs"
              radius="xs"
              leftSection={<IconSearch size={16} />}
              onClick={() => {
                setSearchParams({ ...storeParams, page_number: 1 }, type)
                setAppliedFilters(filters)
                setQueryTrigger((v) => v + 1)
              }}>
              查询
            </Button>
          </Group>
        </Group>

        <Collapse
          in={searchExpanded}
          transitionDuration={250}
          transitionTimingFunction="ease"
          animateOpacity>
          <Stack gap="sm" mt="sm">
            <SimpleGrid cols={{ base: 1, sm: 2, md: 3, lg: 4 }} spacing="sm">
              <TextInput
                label="项目名称"
                size="xs"
                radius="xs"
                value={filters.project_name}
                onChange={(e) =>
                  setFilters((s) => ({
                    ...s,
                    project_name: e.currentTarget.value,
                  }))
                }
              />
              <Select
                label="所属业务"
                size="xs"
                radius="xs"
                searchable
                clearable
                data={typeOpts}
                value={filters.project_type || null}
                onChange={(v) =>
                  setFilters((s) => ({ ...s, project_type: v ?? "" }))
                }
              />
              <Select
                label="状态"
                size="xs"
                radius="xs"
                searchable
                data={projectStatusOpts.map((o) => ({
                  label: o.label,
                  value: o.label,
                }))}
                value={filters.status}
                onChange={(v) => setFilters((s) => ({ ...s, status: v ?? "" }))}
              />
              <TextInput
                label="负责人"
                size="xs"
                radius="xs"
                value={filters.owner}
                onChange={(e) =>
                  setFilters((s) => ({ ...s, owner: e.currentTarget.value }))
                }
              />
              <Select
                label="标注类型"
                size="xs"
                radius="xs"
                searchable
                clearable
                data={projectLabelTypeOpts.map((o) => ({
                  label: o.label,
                  value: String(o.value),
                }))}
                value={filters.label_type || null}
                onChange={(v) =>
                  setFilters((s) => ({ ...s, label_type: v ?? "" }))
                }
              />
              <Select
                label="标注管理员"
                size="xs"
                radius="xs"
                searchable
                clearable
                data={userOpts.map((o) => ({
                  label: o.label,
                  value: String(o.value),
                }))}
                value={filters.admin_user || null}
                onChange={(v) =>
                  setFilters((s) => ({ ...s, admin_user: v ?? "" }))
                }
              />
              <TextInput
                label="开始日期"
                size="xs"
                radius="xs"
                type="date"
                value={filters.start_date}
                onChange={(e) =>
                  setFilters((s) => ({
                    ...s,
                    start_date: e.currentTarget.value,
                  }))
                }
              />
              <TextInput
                label="结束日期"
                size="xs"
                radius="xs"
                type="date"
                value={filters.end_date}
                onChange={(e) =>
                  setFilters((s) => ({ ...s, end_date: e.currentTarget.value }))
                }
              />
            </SimpleGrid>
          </Stack>
        </Collapse>
      </Paper>

      <Paper
        withBorder
        p="md"
        radius="md"
        style={{
          borderColor: "rgba(0,0,0,0.06)",
          flex: 1,
          minHeight: 0,
          display: "flex",
          flexDirection: "column",
        }}>
        <div
          style={{
            flex: 1,
            minHeight: 0,
            overflowY: "auto",
            paddingRight: 2,
          }}>
          {loading ? (
            <div
              style={{
                height: "100%",
                minHeight: 220,
                display: "flex",
                alignItems: "center",
                justifyContent: "center",
              }}>
              <Loader size="sm" />
            </div>
          ) : records.length ? (
            <div
              style={{
                display: "grid",
                gridTemplateColumns: "repeat(auto-fill, minmax(280px, 1fr))",
                gap: 16,
              }}>
              {records.map(ProjectCard)}
            </div>
          ) : (
            <div
              style={{
                height: "100%",
                minHeight: 220,
                border: "1px solid rgba(0,0,0,0.06)",
                borderRadius: 12,
                background: "rgba(0,0,0,0.02)",
                display: "flex",
                alignItems: "center",
                justifyContent: "center",
              }}>
              <Text size="lg" c="dimmed" fw={600}>
                暂无数据
              </Text>
            </div>
          )}
        </div>

        <div style={{ height: 36, marginTop: 16 }}>
          <PaginationBar
            currentPage={currentPage}
            pageSize={pageSize}
            total={total ?? 0}
            onChangePage={(p) => {
              setSearchParams({ ...storeParams, page_number: p }, type)
              setQueryTrigger((v) => v + 1)
            }}
            onChangePageSize={(s) => {
              setSearchParams(
                { ...storeParams, page_number: 1, page_size: s },
                type
              )
              setQueryTrigger((v) => v + 1)
            }}
          />
        </div>
      </Paper>
    </Stack>
  )
}