// Copyright 2021 The Casdoor Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import React from "react";
import {Link} from "react-router-dom";
import {Button, Modal, Switch, Table, Upload} from "antd";
import moment from "moment";
import * as Setting from "./Setting";
import * as Conf from "./Conf";
import * as PermissionBackend from "./backend/PermissionBackend";
import i18next from "i18next";
import BaseListPage from "./BaseListPage";
import PopconfirmModal from "./common/modal/PopconfirmModal";
import {UploadOutlined} from "@ant-design/icons";
import * as XLSX from "xlsx";

class PermissionListPage extends BaseListPage {
  newPermission() {
    const randomName = Setting.getRandomName();
    const owner = Setting.getRequestOrganization(this.props.account);
    return {
      owner: owner,
      name: `permission_${randomName}`,
      createdTime: moment().format(),
      displayName: `New Permission - ${randomName}`,
      users: [`${this.props.account.owner}/${this.props.account.name}`],
      groups: [],
      roles: [],
      domains: [],
      resourceType: "Application",
      resources: [Conf.DefaultApplication],
      actions: ["Read"],
      effect: "Allow",
      isEnabled: true,
      submitter: this.props.account.name,
      approver: "",
      approveTime: "",
      state: Setting.isLocalAdminUser(this.props.account) ? "Approved" : "Pending",
    };
  }

  addPermission() {
    const newPermission = this.newPermission();
    PermissionBackend.addPermission(newPermission)
      .then((res) => {
        if (res.status === "ok") {
          this.props.history.push({pathname: `/permissions/${newPermission.owner}/${newPermission.name}`, mode: "add"});
          Setting.showMessage("success", i18next.t("general:Successfully added"));
        } else {
          Setting.showMessage("error", `${i18next.t("general:Failed to add")}: ${res.msg}`);
        }
      })
      .catch(error => {
        Setting.showMessage("error", `${i18next.t("general:Failed to connect to server")}: ${error}`);
      });
  }

  deletePermission(i) {
    PermissionBackend.deletePermission(this.state.data[i])
      .then((res) => {
        if (res.status === "ok") {
          Setting.showMessage("success", i18next.t("general:Successfully deleted"));
          this.fetch({
            pagination: {
              ...this.state.pagination,
              current: this.state.pagination.current > 1 && this.state.data.length === 1 ? this.state.pagination.current - 1 : this.state.pagination.current,
            },
          });
        } else {
          Setting.showMessage("error", `${i18next.t("general:Failed to delete")}: ${res.msg}`);
        }
      })
      .catch(error => {
        Setting.showMessage("error", `${i18next.t("general:Failed to connect to server")}: ${error}`);
      });
  }

  uploadPermissionFile(info) {
    const {status, msg} = info;
    if (status === "ok") {
      Setting.showMessage("success", "Permissions uploaded successfully, refreshing the page");
      const {pagination} = this.state;
      this.fetch({pagination});
    } else if (status === "error") {
      Setting.showMessage("error", `${i18next.t("general:Failed to upload")}: ${msg}`);
    }
    this.setState({uploadJsonData: [], uploadColumns: [], showUploadModal: false});
  }

  generateDownloadTemplate() {
    const permissionObj = {};
    const items = Setting.getPermissionColumns();
    items.forEach((item) => {
      permissionObj[item] = null;
    });
    const worksheet = XLSX.utils.json_to_sheet([permissionObj]);
    const workbook = XLSX.utils.book_new();
    XLSX.utils.book_append_sheet(workbook, worksheet, "Sheet1");
    XLSX.writeFile(workbook, "import-permission.xlsx", {compression: true});
  }

  renderPermissionUpload() {
    const uploadThis = this;
    const props = {
      name: "file",
      accept: ".xlsx",
      showUploadList: false,
      beforeUpload: (file) => {
        const reader = new FileReader();
        reader.onload = (e) => {
          const binary = e.target.result;

          try {
            const workbook = XLSX.read(binary, {type: "array"});
            if (!workbook.SheetNames || workbook.SheetNames.length === 0) {
              Setting.showMessage("error", i18next.t("general:No sheets found in file"));
              return;
            }

            const worksheet = workbook.Sheets[workbook.SheetNames[0]];
            const jsonData = XLSX.utils.sheet_to_json(worksheet);
            this.setState({uploadJsonData: jsonData, file: file});

            const columns = Setting.getPermissionColumns().map(el => {
              return {title: el.split("#")[0], dataIndex: el, key: el};
            });
            this.setState({uploadColumns: columns}, () => {this.setState({showUploadModal: true});});
          } catch (err) {
            Setting.showMessage("error", `${i18next.t("general:Failed to upload")}: ${err.message}`);
          }
        };

        reader.onerror = (error) => {
          Setting.showMessage("error", `${i18next.t("general:Failed to upload")}: ${error?.message || error}`);
        };

        reader.readAsArrayBuffer(file);
        return false;
      },
    };

    return (
      <>
        <Upload {...props}>
          <Button icon={<UploadOutlined />} id="upload-button" size="small">
            {i18next.t("general:Upload (.xlsx)")}
          </Button>
        </Upload>
        <Modal title={i18next.t("general:Upload (.xlsx)")}
          width={"100%"}
          closable={true}
          open={this.state.showUploadModal}
          okText={i18next.t("general:Click to Upload")}
          onOk = {() => {
            const formData = new FormData();
            formData.append("file", this.state.file);
            fetch(`${Setting.ServerUrl}/api/upload-permissions`, {
              method: "post",
              body: formData,
              credentials: "include",
              headers: {
                "Accept-Language": Setting.getAcceptLanguage(),
              },
            })
              .then((res) => res.json())
              .then((res) => {uploadThis.uploadPermissionFile(res);})
              .catch((error) => {
                Setting.showMessage("error", `${i18next.t("general:Failed to upload")}: ${error.message}`);
              });
          }}
          cancelText={i18next.t("general:Cancel")}
          onCancel={() => {this.setState({showUploadModal: false, uploadJsonData: [], uploadColumns: []});}}
        >
          <div style={{marginRight: "34px"}}>
            <Table scroll={{x: "max-content"}} dataSource={this.state.uploadJsonData} columns={this.state.uploadColumns} />
          </div>
        </Modal>
      </>
    );
  }

  renderTable(permissions) {
    const columns = [
      // https://github.com/ant-design/ant-design/issues/22184
      {
        title: i18next.t("general:Name"),
        dataIndex: "name",
        key: "name",
        width: "150px",
        fixed: "left",
        sorter: true,
        ...this.getColumnSearchProps("name"),
        render: (text, record, index) => {
          return (
            <Link to={`/permissions/${record.owner}/${encodeURIComponent(text)}`}>
              {text}
            </Link>
          );
        },
      },
      {
        title: i18next.t("general:Organization"),
        dataIndex: "owner",
        key: "owner",
        width: "120px",
        sorter: true,
        ...this.getColumnSearchProps("owner"),
        render: (text, record, index) => {
          return (
            <Link to={`/organizations/${text}`}>
              {text}
            </Link>
          );
        },
      },
      {
        title: i18next.t("general:Created time"),
        dataIndex: "createdTime",
        key: "createdTime",
        width: "160px",
        sorter: true,
        render: (text, record, index) => {
          return Setting.getFormattedDate(text);
        },
      },
      {
        title: i18next.t("general:Display name"),
        dataIndex: "displayName",
        key: "displayName",
        width: "160px",
        sorter: true,
        ...this.getColumnSearchProps("displayName"),
      },
      {
        title: i18next.t("general:Model"),
        dataIndex: "model",
        key: "model",
        width: "250px",
        fixed: "left",
        sorter: true,
        ...this.getColumnSearchProps("name"),
        render: (text, record, index) => {
          return (
            <Link to={`/models/${text}`}>
              {text}
            </Link>
          );
        },
      },
      {
        title: i18next.t("role:Sub users"),
        dataIndex: "users",
        key: "users",
        // width: '100px',
        sorter: true,
        ...this.getColumnSearchProps("users"),
        render: (text, record, index) => {
          return Setting.getTags(text, "users");
        },
      },
      {
        title: i18next.t("role:Sub groups"),
        dataIndex: "groups",
        key: "groups",
        // width: '100px',
        sorter: true,
        ...this.getColumnSearchProps("groups"),
        render: (text, record, index) => {
          return Setting.getTags(text, "groups");
        },
      },
      {
        title: i18next.t("role:Sub roles"),
        dataIndex: "roles",
        key: "roles",
        // width: '100px',
        sorter: true,
        ...this.getColumnSearchProps("roles"),
        render: (text, record, index) => {
          return Setting.getTags(text, "roles");
        },
      },
      {
        title: i18next.t("role:Sub domains"),
        dataIndex: "domains",
        key: "domains",
        sorter: true,
        ...this.getColumnSearchProps("domains"),
        render: (text, record, index) => {
          return Setting.getTags(text);
        },
      },
      {
        title: i18next.t("permission:Resource type"),
        dataIndex: "resourceType",
        key: "resourceType",
        filterMultiple: false,
        filters: [
          {text: "Application", value: "Application"},
        ],
        width: "170px",
        sorter: true,
      },
      {
        title: i18next.t("general:Resources"),
        dataIndex: "resources",
        key: "resources",
        // width: '100px',
        sorter: true,
        ...this.getColumnSearchProps("resources"),
        render: (text, record, index) => {
          return Setting.getTags(text);
        },
      },
      {
        title: i18next.t("permission:Actions"),
        dataIndex: "actions",
        key: "actions",
        // width: '100px',
        sorter: true,
        ...this.getColumnSearchProps("actions"),
        render: (text, record, index) => {
          const tags = text.map((tag, i) => {
            switch (tag) {
            case "Read":
              return i18next.t("permission:Read");
            case "Write":
              return i18next.t("permission:Write");
            case "Admin":
              return i18next.t("general:Admin");
            default:
              return tag || null;
            }
          });
          return Setting.getTags(tags);
        },
      },
      {
        title: i18next.t("permission:Effect"),
        dataIndex: "effect",
        key: "effect",
        filterMultiple: false,
        filters: [
          {text: i18next.t("permission:Allow"), value: "Allow"},
          {text: i18next.t("permission:Deny"), value: "Deny"},
        ],
        width: "120px",
        sorter: true,
        render: (text, record, index) => {
          switch (text) {
          case "Allow":
            return Setting.getTag("success", i18next.t("permission:Allow"));
          case "Deny":
            return Setting.getTag("error", i18next.t("permission:Deny"));
          default:
            return null;
          }
        },
      },
      {
        title: i18next.t("general:Is enabled"),
        dataIndex: "isEnabled",
        key: "isEnabled",
        width: "120px",
        sorter: true,
        render: (text, record, index) => {
          return (
            <Switch disabled checkedChildren={i18next.t("general:ON")} unCheckedChildren={i18next.t("general:OFF")} checked={text} />
          );
        },
      },
      {
        title: i18next.t("permission:Submitter"),
        dataIndex: "submitter",
        key: "submitter",
        filterMultiple: false,
        width: "120px",
        sorter: true,
        render: (text, record, index) => {
          return (
            <Link to={`/users/${record.owner}/${encodeURIComponent(text)}`}>
              {text}
            </Link>
          );
        },
      },
      {
        title: i18next.t("permission:Approver"),
        dataIndex: "approver",
        key: "approver",
        filterMultiple: false,
        width: "120px",
        sorter: true,
        render: (text, record, index) => {
          return (
            <Link to={`/users/${record.owner}/${encodeURIComponent(text)}`}>
              {text}
            </Link>
          );
        },
      },
      {
        title: i18next.t("permission:Approve time"),
        dataIndex: "approveTime",
        key: "approveTime",
        filterMultiple: false,
        width: "130px",
        sorter: true,
        render: (text, record, index) => {
          return Setting.getFormattedDate(text);
        },
      },
      {
        title: i18next.t("general:State"),
        dataIndex: "state",
        key: "state",
        filterMultiple: false,
        filters: [
          {text: i18next.t("permission:Approved"), value: "Approved"},
          {text: i18next.t("webhook:Pending"), value: "Pending"},
        ],
        width: "120px",
        sorter: true,
        render: (text, record, index) => {
          switch (text) {
          case "Approved":
            return Setting.getTag("success", i18next.t("permission:Approved"));
          case "Pending":
            return Setting.getTag("error", i18next.t("webhook:Pending"));
          default:
            return null;
          }
        },
      },
      {
        title: i18next.t("general:Action"),
        dataIndex: "",
        key: "op",
        width: "170px",
        fixed: (Setting.isMobile()) ? "false" : "right",
        render: (text, record, index) => {
          return (
            <div>
              <Button style={{marginTop: "10px", marginBottom: "10px", marginRight: "10px"}} type="primary" onClick={() => this.props.history.push(`/permissions/${record.owner}/${encodeURIComponent(record.name)}`)}>{i18next.t("general:Edit")}</Button>
              <PopconfirmModal
                title={i18next.t("general:Sure to delete") + `: ${record.name} ?`}
                onConfirm={() => this.deletePermission(index)}
              >
              </PopconfirmModal>
            </div>
          );
        },
      },
    ];

    const paginationProps = {
      total: this.state.pagination.total,
      showQuickJumper: true,
      showSizeChanger: true,
      showTotal: () => i18next.t("general:{total} in total").replace("{total}", this.state.pagination.total),
    };

    return (
      <div>
        <Table scroll={{x: "max-content"}} columns={columns} dataSource={permissions} rowKey={(record) => `${record.owner}/${record.name}`} size="middle" bordered pagination={paginationProps}
          title={() => (
            <div>
              {i18next.t("general:Permissions")}&nbsp;&nbsp;&nbsp;&nbsp;
              <Button id="add-button" style={{marginRight: "15px"}} type="primary" size="small" onClick={this.addPermission.bind(this)}>{i18next.t("general:Add")}</Button>
              <Button style={{marginRight: "15px"}} type="primary" size="small" onClick={this.generateDownloadTemplate}>{i18next.t("general:Download template")} </Button>
              {
                this.renderPermissionUpload()
              }
            </div>
          )}
          loading={this.getTableLoading()}
          onChange={this.handleTableChange}
        />
      </div>
    );
  }

  fetch = (params = {}) => {
    let field = params.searchedColumn, value = params.searchText;
    const sortField = params.sortField, sortOrder = params.sortOrder;
    if (params.type !== undefined && params.type !== null) {
      field = "type";
      value = params.type;
    }
    this.setState({loading: true});

    const getPermissions = Setting.isLocalAdminUser(this.props.account) ? PermissionBackend.getPermissions : PermissionBackend.getPermissionsBySubmitter;
    getPermissions(Setting.isDefaultOrganizationSelected(this.props.account) ? "" : Setting.getRequestOrganization(this.props.account), params.pagination.current, params.pagination.pageSize, field, value, sortField, sortOrder)
      .then((res) => {
        this.setState({
          loading: false,
        });
        if (res.status === "ok") {
          this.setState({
            data: res.data,
            pagination: {
              ...params.pagination,
              total: res.data2,
            },
            searchText: params.searchText,
            searchedColumn: params.searchedColumn,
          });
        } else {
          if (Setting.isResponseDenied(res)) {
            this.setState({
              isAuthorized: false,
            });
          } else {
            Setting.showMessage("error", res.msg);
          }
        }
      });
  };
}

export default PermissionListPage;
