import Add from "@mui/icons-material/Add";
import DeleteOutlineOutlined from "@mui/icons-material/DeleteOutlineOutlined";
import EditOutlined from "@mui/icons-material/EditOutlined";
import { AdminSwitch } from "@/shared/ui/AdminSwitch.jsx";
import { DataState } from "@/shared/ui/DataState.jsx";
import { DataTable } from "@/shared/ui/DataTable.jsx";
import {
    AdminActionIconButton,
    AdminFilterResetButton,
    AdminFilterSelect,
    AdminListBody,
    AdminListToolbar,
} from "@/shared/ui/AdminListLayout.jsx";
import { createOptionsColumnFilter, createTextColumnFilter } from "@/shared/ui/tableFilters.js";
import { formatMillis } from "@/shared/utils/time.js";
import { TeamSalaryPolicyDrawer } from "@/features/host-agency-policy/components/TeamSalaryPolicyDrawer.jsx";
import { useTeamSalaryPolicyPage } from "@/features/host-agency-policy/hooks/useTeamSalaryPolicyPage.js";
import styles from "@/features/host-agency-policy/host-agency-policy.module.css";

const statusOptions = [
    ["", "全部状态"],
    ["active", "启用"],
    ["disabled", "停用"],
];

const settlementTriggerOptions = [
    ["", "全部触发"],
    ["automatic", "自动结算"],
    ["manual", "手动结算"],
];

const columnsBase = [
    {
        key: "policy",
        label: "政策",
        width: "minmax(260px, 1.2fr)",
        render: (item, _rowIndex, context) => (
            <PolicyIdentity item={item} policyType={context.policyType} regionLabels={context.regionLabels} />
        ),
    },
    {
        key: "settlement",
        label: "触发与周期",
        width: "minmax(180px, 0.8fr)",
        render: (item) => <SettlementSummary item={item} />,
    },
    {
        key: "levels",
        label: "等级",
        width: "minmax(220px, 0.95fr)",
        render: (item, _rowIndex, context) => <LevelSummary item={item} policyType={context.policyType} />,
    },
    {
        key: "effective",
        label: "生效时间",
        width: "minmax(220px, 1fr)",
        render: (item) => <EffectiveTime item={item} />,
    },
    {
        key: "status",
        label: "状态",
        width: "minmax(110px, 0.5fr)",
    },
    {
        key: "updatedAt",
        label: "更新时间",
        width: "minmax(170px, 0.75fr)",
        render: (item) => formatMillis(item.updatedAtMs || item.createdAtMs),
    },
    {
        key: "actions",
        label: "操作",
        width: "112px",
        resizable: false,
    },
];

export function TeamSalaryPolicyPanel({ policyType }) {
    const page = useTeamSalaryPolicyPage(policyType);
    const items = page.data.items || [];
    const total = page.data.total || 0;
    const regionFilterOptions = [["", "全部区域"], ...page.regionOptions.map((region) => [region.value, region.label])];
    const columns = columnsBase.map((column) => {
        if (column.key === "policy") {
            return {
                ...column,
                filter: createTextColumnFilter({
                    placeholder: "搜索政策名称",
                    value: page.query,
                    onChange: page.changeQuery,
                }),
            };
        }
        if (column.key === "settlement") {
            return {
                ...column,
                filter: createOptionsColumnFilter({
                    options: settlementTriggerOptions,
                    placeholder: "搜索触发方式",
                    value: page.settlementTriggerMode,
                    onChange: page.changeSettlementTriggerMode,
                }),
            };
        }
        if (column.key === "status") {
            return {
                ...column,
                filter: createOptionsColumnFilter({
                    options: statusOptions,
                    placeholder: "搜索状态",
                    value: page.status,
                    onChange: page.changeStatus,
                }),
                render: (item) => <PolicyStatusSwitch item={item} page={page} />,
            };
        }
        if (column.key === "actions") {
            return {
                ...column,
                render: (item) => <PolicyActions item={item} page={page} />,
            };
        }
        return column;
    });

    return (
        <>
            <AdminListToolbar
                actions={
                    page.abilities.canTeamCreate ? (
                        <AdminActionIconButton
                            label={`新增${policyTitle(policyType)}政策`}
                            primary
                            onClick={page.openCreate}
                        >
                            <Add fontSize="small" />
                        </AdminActionIconButton>
                    ) : null
                }
                filters={
                    <div className={styles.toolbarFilters}>
                        <AdminFilterSelect
                            label="区域"
                            options={regionFilterOptions}
                            value={page.regionId}
                            onChange={page.changeRegionId}
                        />
                        <AdminFilterResetButton
                            disabled={!page.query && !page.regionId && !page.status && !page.settlementTriggerMode}
                            onClick={page.resetFilters}
                        />
                    </div>
                }
            />
            <DataState error={page.error} loading={page.loading} onRetry={page.reload}>
                <AdminListBody>
                    <DataTable
                        columns={columns}
                        context={{ policyType, regionLabels: page.regionLabels }}
                        items={items}
                        minWidth="1240px"
                        pagination={
                            total > 0
                                ? {
                                      page: page.page,
                                      pageSize: page.data.pageSize || 50,
                                      total,
                                      onPageChange: page.setPage,
                                  }
                                : undefined
                        }
                        rowKey={(item) => item.id}
                    />
                </AdminListBody>
            </DataState>
            <TeamSalaryPolicyDrawer page={page} />
        </>
    );
}

function PolicyIdentity({ item, policyType, regionLabels }) {
    const labels = regionLabels || {};
    return (
        <div className={styles.stack}>
            <span className={styles.name}>{item.name}</span>
            <span className={styles.meta}>
                {policyTitle(policyType)} · {labels[item.regionId] || `区域 ${item.regionId}`}
            </span>
        </div>
    );
}

function SettlementSummary({ item }) {
    return (
        <div className={styles.stack}>
            <span>{settlementTriggerLabel(item.settlementTriggerMode)}</span>
            <span className={styles.meta}>完整自然月</span>
            <span className={styles.meta}>次月 5 日可结算</span>
        </div>
    );
}

function LevelSummary({ item, policyType }) {
    const first = item.levels?.[0];
    const last = item.levels?.[item.levels.length - 1];
    return (
        <div className={styles.stack}>
            <span>{item.levels?.length || 0} 个等级</span>
            <span className={styles.meta}>
                {first && last ? `$${first.thresholdUsd} - $${last.thresholdUsd} ${thresholdUnit(policyType)}` : "-"}
            </span>
            <span className={styles.meta}>{last ? `最高工资 $${last.salaryUsd}` : ""}</span>
        </div>
    );
}

function EffectiveTime({ item }) {
    return (
        <div className={styles.stack}>
            <span>{item.effectiveFromMs ? formatMillis(item.effectiveFromMs) : "立即生效"}</span>
            <span className={styles.meta}>{item.effectiveToMs ? formatMillis(item.effectiveToMs) : "长期有效"}</span>
        </div>
    );
}

function PolicyStatusSwitch({ item, page }) {
    const disabled = !page.abilities.canTeamUpdate || page.loadingAction === `team-policy-status-${item.id}`;
    return (
        <AdminSwitch
            checked={item.status === "active"}
            checkedLabel="启用"
            disabled={disabled}
            label="切换政策状态"
            uncheckedLabel="停用"
            onChange={(event) => page.togglePolicyStatus(item, event.target.checked)}
        />
    );
}

function PolicyActions({ item, page }) {
    return (
        <div className={styles.rowActions}>
            <AdminActionIconButton
                disabled={!page.abilities.canTeamUpdate}
                label="编辑工资政策"
                onClick={() => page.openEdit(item)}
            >
                <EditOutlined fontSize="small" />
            </AdminActionIconButton>
            <AdminActionIconButton
                disabled={!page.abilities.canTeamDelete || page.loadingAction === `team-policy-delete-${item.id}`}
                label="删除工资政策"
                onClick={() => page.removePolicy(item)}
            >
                <DeleteOutlineOutlined fontSize="small" />
            </AdminActionIconButton>
        </div>
    );
}

function policyTitle(policyType) {
    return policyType === "bd" ? "BD" : "Admin";
}

function thresholdUnit(policyType) {
    return policyType === "bd" ? "主播工资" : "BD工资";
}

function settlementTriggerLabel(value) {
    return settlementTriggerOptions.find(([mode]) => mode === value)?.[1] || value || "-";
}