"use client"

import { getPersonProjectDashBoard } from "@/components/label/api/project"
import { Project } from "@/components/label/api/project/typing"
import {
  SettingDataTable,
  SettingListHeader,
  SettingCustomPageSizeControl,
  usePersistentPageSizeOptions,
} from "@/components/setting/PageSurface"
import { Button, Group, Stack, Text } from "@mantine/core"
import { DatePickerInput, type DatesRangeValue } from "@mantine/dates"

import { IconRefresh, IconSearch } from "@tabler/icons-react"
import dayjs from "dayjs"
import "dayjs/locale/zh-cn"
import duration from "dayjs/plugin/duration"
import { DataTableColumn } from "mantine-datatable"
import { useCallback, useEffect, useMemo, useState } from "react"
import classes from "../page.module.css"

dayjs.extend(duration)

function formatDurationSeconds(seconds?: number | null) {
  const value = seconds ?? 0
  if (!value) return "-"
  const durationObj = dayjs.duration(value, "seconds")
  const hours = durationObj.hours()
  const minutes = durationObj.minutes()
  if (hours) return `${hours}小时${minutes}分钟`
  if (minutes) return `${minutes}分钟`
  return "-"
}

interface FilterFormRecord {
  query_date: DatesRangeValue
}

function normalizeQueryDateRange(value: DatesRangeValue): [string, string] {
  const today = dayjs().format("YYYY-MM-DD")
  const [start, end] = value
  const normalizedStart = start ?? end ?? today
  const normalizedEnd = end ?? normalizedStart

  return [
    dayjs(normalizedStart).format("YYYY-MM-DD"),
    dayjs(normalizedEnd).format("YYYY-MM-DD"),
  ]
}

function createInitialFilters(): FilterFormRecord {
  return {
    query_date: [
      dayjs().subtract(1, "week").format("YYYY-MM-DD"),
      dayjs().format("YYYY-MM-DD"),
    ],
  }
}

const DEFAULT_RECORDS_PER_PAGE_OPTIONS = [10, 15, 20, 50]

export default function PersonalProjectTable() {
  const [records, setRecords] = useState<
    Project.PersonProjectDashboardResponseItem[]
  >([])
  const [loading, setLoading] = useState(false)

  const [page, setPage] = useState(1)
  const [pageSize, setPageSize] = useState(10)
  const {
    recordsPerPageOptions,
    addCustomPageSize,
    clearCustomPageSizeCache,
    hasCustomPageSizeCache,
  } = usePersistentPageSizeOptions(DEFAULT_RECORDS_PER_PAGE_OPTIONS, pageSize)
  const [totalItems, setTotalItems] = useState(0)

  const [filters, setFilters] = useState(() => createInitialFilters())
  const [queryTrigger, setQueryTrigger] = useState(0)
  const [form, setForm] = useState<FilterFormRecord>(createInitialFilters())

  const totalPages = useMemo(() => {
    const totalItems = records.length
    return Math.max(1, Math.ceil(totalItems / pageSize))
  }, [pageSize, records.length])

  const pageRecords = useMemo(() => {
    const start = (page - 1) * pageSize
    return records.slice(start, start + pageSize)
  }, [page, pageSize, records])

  const appliedParams = useMemo(() => {
    const [start_date, end_date] = normalizeQueryDateRange(form.query_date)
    const params: Project.ReqPersonProjectDashBoard = {
      start_date,
      end_date,
    }
    return params
  }, [form.query_date])

  const load = useCallback(async () => {
    if (!queryTrigger) return
    setLoading(true)
    try {
      const res = await getPersonProjectDashBoard(appliedParams)
      setRecords(res ?? [])
      setTotalItems(res?.length ?? 0)
      setPage(1)
    } finally {
      setLoading(false)
    }
  }, [appliedParams, queryTrigger])

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

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

  const handleSearch = () => {
    setPage(1)
    setForm({ ...filters })
    setQueryTrigger((v) => v + 1)
  }

  const handleReset = useCallback(() => {
    const next = createInitialFilters()
    setFilters(next)
    setForm(next)
    setPage(1)
    setQueryTrigger((v) => v + 1)
  }, [])

  useEffect(() => {
    if (page > totalPages) setPage(totalPages)
  }, [page, totalPages])

  const originColumn = useMemo(() => {
    let column: DataTableColumn<Project.PersonProjectDashboardResponseItem>[] =
      [
        {
          accessor: "project_id",
          title: "项目ID",
          width: 150,
          render: (record: Project.PersonProjectDashboardResponseItem) => {
            return (
              <Text
                title={record.project_id.toString()}
                className={classes.ellipsisText}>
                {record.project_id}
              </Text>
            )
          },
        },
        {
          accessor: "project_name",
          title: "项目名称",
          width: 160,
          render: (record: Project.PersonProjectDashboardResponseItem) => {
            return (
              <Text
                title={record.project_name ?? "-"}
                className={classes.ellipsisText}>
                {record.project_name ?? "-"}
              </Text>
            )
          },
        },
        {
          accessor: "project_type",
          title: "所属业务",
          width: 160,
          render: (record: Project.PersonProjectDashboardResponseItem) => {
            return (
              <Text
                title={record.project_id.toString()}
                className={classes.ellipsisText}>
                {record.project_type ?? "-"}
              </Text>
            )
          },
        },
        {
          accessor: "work_time",
          title: "任务耗时",
          width: 140,
          render: (record: Project.PersonProjectDashboardResponseItem) => {
            return (
              <Text className={classes.tableCellText}>
                {formatDurationSeconds(record.work_time)}
              </Text>
            )
          },
        },
        {
          accessor: "project_label_type",
          title: "标注类别",
          width: 160,
          render: (record: Project.PersonProjectDashboardResponseItem) => {
            return (
              <Text className={classes.tableCellText}>
                {record.project_label_type ?? "-"}
              </Text>
            )
          },
        },
      ]
    return column
  }, [])

  return (
    <Stack className={classes.dashboardSection}>
      <SettingListHeader title="参与项目" count={`共 ${totalItems} 条记录`} />
      <div className={classes.dashboardFilterBar}>
        <div className={classes.dashboardFilterField}>
          <Text className={classes.dashboardFilterLabel}>统计周期</Text>
          <div className={classes.dashboardFilterControl}>
            <DatePickerInput
              type="range"
              allowSingleDateInRange
              placeholder="请选择时间范围，默认为当天一天"
              valueFormat="YYYY-MM-DD"
              locale="zh-cn"
              clearable
              value={filters.query_date}
              onChange={(value: DatesRangeValue) =>
                setFilters((s) => ({
                  ...s,
                  query_date: value,
                }))
              }
            />
          </div>
        </div>
        <div className={classes.dashboardFilterActions}>
          <Button
            variant="default"
            leftSection={<IconRefresh size={16} />}
            onClick={handleReset}>
            重置
          </Button>
          <Button
            color="#1874ff"
            leftSection={<IconSearch size={16} />}
            onClick={handleSearch}
            disabled={loading}>
            查询
          </Button>
        </div>
      </div>
      <div className={classes.dashboardTableArea}>
        <SettingDataTable<Project.PersonProjectDashboardResponseItem>
          width="100%"
          minHeight={0}
          style={{ width: "100%", flex: 1 }}
          pinFirstColumn
          fetching={loading}
          scrollAreaProps={{ type: "auto" }}
          records={pageRecords}
          onRecordsPerPageChange={setPageSize}
          recordsPerPageOptions={recordsPerPageOptions}
          columns={originColumn}
          totalRecords={totalItems}
          recordsPerPage={pageSize}
          page={page}
          onPageChange={setPage}
          noRecordsText="暂无数据"
          recordsPerPageLabel="每页条数"
          paginationText={({ from, to, totalRecords }) =>
            `显示 ${from}-${to} 条，共 ${totalRecords} 条记录`
          }
          renderPagination={({ Controls }) => (
            <Group
              justify="space-between"
              align="center"
              w="100%"
              gap="sm"
              wrap="wrap">
              <Group gap="xs" align="center" wrap="wrap">
                <Controls.Text />
                <Controls.PageSizeSelector />
                <SettingCustomPageSizeControl
                  addCustomPageSize={addCustomPageSize}
                  clearCustomPageSizeCache={clearCustomPageSizeCache}
                  hasCustomPageSizeCache={hasCustomPageSizeCache}
                  triggerButtonProps={{ variant: "default", size: "sm" }}
                  confirmButtonProps={{ color: "#1874ff" }}
                />
              </Group>
              <Controls.Pagination />
            </Group>
          )}
        />
      </div>
    </Stack>
  )
}