<template>
  <div class="h-100">


    <v-card style="" class="h-100">
      <v-toolbar flat height="42" class="toolbar-border-bottom">
        <v-toolbar-title>
          <v-breadcrumbs :items="[{
                text: this.nodes.env,
                disabled: true,
                href: '#'
              },{
                text: this.nodes.dbAlias,
                disabled: true,
                href: '#'
              },
              {
                text: (nodes._tn  || nodes.view_name|| nodes.tn) + ' (RBAC)',
                disabled: true,
                href: '#'
              }]" divider=">" small>
            <template v-slot:divider>
              <v-icon small color="grey lighten-2">forward</v-icon>
            </template>
          </v-breadcrumbs>

        </v-toolbar-title>
        <v-spacer></v-spacer>
        <x-btn outlined tooltip="Reload RBAC"
               color="primary"
               small
               @click="load"
               v-ge="['acl','reload']"
        >
          <v-icon small left>refresh</v-icon>
          Reload
        </x-btn>

        <x-btn outlined tooltip="Save Changes"
               color="primary"
               class="primary"
               small
               v-ge="['acl','save']"
               @click="save"
               :disabled="!edited"
        >
          <v-icon small left>save</v-icon>
          Save
        </x-btn>

      </v-toolbar>


      <p class="title mt-6 mb-6"> Table : <span class="text-capitalize">{{ nodes._tn  || nodes.view_name }}</span><br>
        <span class="font-weight-thin">Role Based Access Control (RBAC) For Columns</span></p>



      <v-skeleton-loader v-if="loading || !data" type="table">

      </v-skeleton-loader>

      <div v-else  class="pb-10">
        <v-overlay absolute v-model="showCustomAcl">
          <template v-slot:default>
            <v-card :light="!$store.state.windows.darkTheme" class="ma-2" style="max-height: 100%; overflow: auto; min-height:70vh">

              <v-card-actions>
                <p class="body-1 mb-0 mr-2">Custom Rules : {{ custoAclTitle[0] }}<span class="grey--text caption">(table)</span>
                  > {{ custoAclTitle[1] }}<span class="grey--text caption">(role)</span> > {{ custoAclTitle[2] }}<span
                    class="grey--text caption">(operation)</span></p>
                <v-spacer>
                </v-spacer>
                <v-btn
                  outlined
                  small
                  @click="showCustomAcl=false"
                >Cancel
                </v-btn>
                <v-btn
                  outlined
                  color="primary"
                  small
                  @click="save"
                >Save
                </v-btn>
              </v-card-actions>
              <v-card-text>
                <custom-acl :nodes="nodes" :table="nodes.tn || nodes.view_name"
                            v-model="customAcl"></custom-acl>
              </v-card-text>

            </v-card>
          </template>
        </v-overlay>
        <v-simple-table dense v-slot:default class=" mx-10">
          <thead>
          <tr>
            <th rowspan="2" class="text-center">
              <!--            <div class="d-flex justify-center align-end">-->
              <!--              <v-checkbox dense v-model="aclAll"></v-checkbox>-->

              <span>Columns x RBAC</span>
    <!--          <v-text-field dense hide-details class="my-2 caption font-weight-regular"
                                                              flat
                                                              outlined
                                                              :placeholder="`Search columns in '${nodes._tn|| nodes.view_name}'`"
                                                              prepend-inner-icon="search" v-model="search"
            ></v-text-field>-->
              <!--            </div>-->
            </th>
            <th :colspan="operations.length" class="text-center"
                v-for="role in roles" :key="role" v-if="role !== 'creator'">{{ role }}
            </th>
          </tr>
          <tr>
            <template v-for="role in roles" v-if="role !== 'creator'">
              <th v-for="op in operations" :class="` pa-0 caption text-capitalize ${op.color}--text`"
                  class="permission role-op-header"
                  :key="`${role}-${op.name}--11`"
              >

                <v-tooltip bottom>
                  <template v-slot:activator="{on}">
                    <div class="d-flex flex-column justify-center align-center d-100 h-100 mt-0" v-on="on">
                      <v-checkbox
                        hide-details
                        class="mt-n1" dense v-model="aclRoleOpAll[`${role}___${op.name}`]"
                                  @change="onAclRoleOpAllChange(aclRoleOpAll[`${role}___${op.name}`],`${role}___${op.name}`)"
                                  :color="op.color"></v-checkbox>
                      <span>{{ op.name }}</span>
                    </div>
                  </template>
                  <span class="caption"><span
                    class="text-capitalize">{{
                      role
                    }}</span> {{ aclRoleOpAll[`${role}___${op.name}`] ? 'can' : 'can\'t' }} {{
                      op.name
                    }} '{{ nodes.tn }}' rows</span>
                </v-tooltip>

                <v-icon v-if="op.name !== 'delete'" x-small class="custom-acl"
                        @click="(
                          showCustomAcl = true,
                          custoAclTitle = [nodes.tn,role,op.name],
                          customAcl=(data[role] && data[role][op.name] && data[role][op.name].custom ) || {}
                          )">
                  mdi-pencil-outline
                </v-icon>

                <v-icon
                  x-small
                  class="custom-acl-found"
                  v-if="data[role]
                        && data[role][op.name]
                        && data[role][op.name].custom
                        && Object.keys(data[role][op.name].custom).length"
                >mdi-filter-menu
                </v-icon>

              </th>
            </template>
          </tr>
          </thead>
          <tbody>

          <tr class="caption" v-for="column in columns"
              :key="column._cn"
              v-show="column._cn.toLowerCase().indexOf(search.toLowerCase()) > -1">
            <td
            >{{ column._cn }}
            </td>
            <template v-for="role in roles" v-if="role !== 'creator'">
              <td
                class="pa-0"
                style="position: relative"
                v-for="op in operations" :class="`caption text-capitalize`"
                :key="`${role}-${op.name}`">
                <v-tooltip bottom :disabled="op.ignore">
                  <template v-slot:activator="{on}">
                    <div class="d-100 h-100 d-flex align-center justify-center permission-checkbox-container" v-on="on">
                      <v-checkbox class="mt-n1" v-if="!op.ignore" dense
                                  color="primary lighten-2"
                                  @change="onPermissionChange(aclObj[`${column._cn}___${role}___${op.name}`],`${role}___${op.name}`)"
                                  v-model="aclObj[`${column._cn}___${role}___${op.name}`]"
                                  style=""></v-checkbox>

                      <v-checkbox class="mt-n1" v-else dense
                                  color="primary lighten-2"
                                  disabled
                                  style=""></v-checkbox>
                    </div>
                  </template>

                  <span class="caption"><span
                    class="text-capitalize">{{
                      role
                    }}</span> {{ aclObj[`${column._cn}___${role}___${op.name}`] ? 'can' : 'can\'t' }} {{
                      op.name
                    }} column '{{ column._cn }}'</span>
                </v-tooltip>
              </td>
            </template>
          </tr>


          </tbody>
        </v-simple-table>
      </div>

    </v-card>
  </div>
</template>

<script>

// import debounce from "@/helpers/debounce";
// import CustomAcl from "./customAcl";

import CustomAcl from "./customAcl";

export default {
  name: "tableAcl",
  components: {CustomAcl},
  // components: {CustomAcl},
  props: ['nodes'],
  data: () => ({
    showCustomAcl: false,
    custoAclTitle: null,
    customAcl: {},
    edited: false,
    search: '',
    allOperations: [{
      name: 'create',
      color: 'warning'
    }, {
      name: 'read',
      color: 'success'
    }, {
      name: 'update',
      color: 'info'
    }, {
      name: 'delete',
      color: 'error',
      ignore: true
    }],

    data: null,
    columns: null,
    aclObj: {},
    aclRoleOpAll: {},
    loading: false
  }),
  computed: {
    roles() {
      return (this.data ? Object.keys(this.data) : []).filter(r => r !== 'guest')
    },
    operations() {
      return this.allOperations.filter(({name}) => this.nodes.tn || name === 'read')
    }
  },
  async created() {
    await this.load();
  },
  methods: {
    async load() {
      await this.loadColumnList();
      await this.loadAcl();
      this.generateAclObj();
      this.edited = false;
    },
    generateAclObj() {

      const aclObj = {};
      const aclRoleOpAll = {};
      console.log(this.data)
      // generate aclObj with merged key value
      for (const [role, roleObj] of Object.entries(this.data)) {
        for (const [operation, acl] of Object.entries(roleObj)) {
          aclRoleOpAll[`${role}___${operation}`] = false;
          for (const {_cn: cn} of this.columns) {
            if (typeof acl === 'boolean') {
              aclObj[`${cn}___${role}___${operation}`] = acl;
            } else if (acl) {
              aclObj[`${cn}___${role}___${operation}`] = acl.columns[cn];
            }
            if (!aclRoleOpAll[`${role}___${operation}`] && aclObj[`${cn}___${role}___${operation}`]) {
              aclRoleOpAll[`${role}___${operation}`] = true;
            }
          }
        }
      }
      this.aclRoleOpAll = aclRoleOpAll;
      this.$nextTick(() => this.aclObj = aclObj);

    },
    async save() {
      const obj = {};
      for (const [key, isAllowed] of Object.entries(this.aclObj)) {
        const [column, role, operation] = key.split('___');
        if (operation !== 'delete') {
          obj[role] = obj[role] || {};
          obj[role][operation] = obj[role][operation] || {};
          obj[role][operation].columns = obj[role][operation].columns || {};
          obj[role][operation].columns[column] = isAllowed;
        }
        if (this.data[role] && this.data[role][operation] && this.data[role][operation].custom) {
          obj[role][operation].custom = this.data[role][operation].custom;
        }


      }

      for (const [key, isAllowed] of Object.entries(this.aclRoleOpAll)) {
        const [role, operation] = key.split('___');
        if (operation === 'delete' || !isAllowed) {
          obj[role] = obj[role] || {};
          obj[role][operation] = isAllowed;
        }
      }

      if (this.showCustomAcl && this.custoAclTitle) {
        if (!obj[this.custoAclTitle[1]][this.custoAclTitle[2]] || typeof obj[this.custoAclTitle[1]][this.custoAclTitle[2]] !== 'object')
          obj[this.custoAclTitle[1]][this.custoAclTitle[2]] = {};
        obj[this.custoAclTitle[1]][this.custoAclTitle[2]].custom = this.customAcl;
      }


      console.log(obj)
      try {
        await this.$store.dispatch('sqlMgr/ActSqlOp', [{
          env: this.nodes.env,
          dbAlias: this.nodes.dbAlias
        }, 'xcAclSave', {
          tn: this.nodes.tn || this.nodes.view_name,
          acl: obj
        }]);
        if (this.showCustomAcl) {
          this.$toast.success('Custom RBAC saved successfully').goAway(3000);
          this.showCustomAcl = false;
        } else
          this.$toast.success('RBAC saved successfully').goAway(3000);
        this.edited = false;
        await this.load()
      } catch (e) {
        this.$toast.error(e.message).goAway(3000);
      }
    },

    async loadColumnList() {
      // const result = await this.$store.dispatch('sqlMgr/ActSqlOp', [{
      //   env: this.nodes.env,
      //   dbAlias: this.nodes.dbAlias
      // }, 'columnList', {
      //   tn: this.nodes.tn || this.nodes.view_name
      // }]);
      // this.columns = result.data.list;
      const result = await this.$store.dispatch('sqlMgr/ActSqlOp', [{
        env: this.nodes.env,
        dbAlias: this.nodes.dbAlias
      }, 'tableXcModelGet', {
        tn: this.nodes.tn || this.nodes.view_name
      }]);


      const meta = JSON.parse(result.meta);
      this.columns = meta.columns;
    },
    async loadAcl() {
      this.loading = true;
      const result = await this.$store.dispatch('sqlMgr/ActSqlOp', [{
        env: this.nodes.env,
        dbAlias: this.nodes.dbAlias
      }, 'xcAclGet', {
        tn: this.nodes.tn || this.nodes.view_name
      }]);
      this.data = JSON.parse(result.acl);

      this.loading = false;
    },
    onAclRoleOpAllChange(isEnabled, name) {
      this.edited = true;
      const obj = {};
      for (const key in this.aclObj) {
        if (key.split('___').slice(1).join('___') === name) {
          obj[key] = isEnabled;
        } else {
          obj[key] = this.aclObj[key];
        }
      }
      this.aclObj = obj;
    },
    onPermissionChange(isEnabled, name) {
      this.edited = true;
      if (isEnabled && !this.aclRoleOpAll[name]) {
        this.$set(this.aclRoleOpAll, name, true);
      }
      if (!isEnabled && this.aclRoleOpAll[name]) {
        this.$set(this.aclRoleOpAll, name, Object.entries(this.aclObj).some(([key, enabled]) => key.endsWith(name) && enabled));
      }
    }
  },
  // watch: {
  //   aclRoleOpAll: {
  //     // todo: fix toggle issue
  //     handler(aclRoleOpAll) {
  //       const obj = {};
  //       for (const key in this.aclObj) {
  //         obj[key] = aclRoleOpAll[key.split('___').slice(1).join('___')];
  //       }
  //       this.aclObj = obj;
  //     },
  //     deep: true
  //   }
  //
  // }
}
</script>

<style scoped lang="scss">
tr,th{
  border: 1px solid grey;
}
td, th {
  border-left: 1px solid grey;
}

td:last-child, th:last-child {
  border-right: 1px solid grey;
}

tr:first-child > th:nth-child(n+2) {
  border-bottom: 1px solid grey;
}

th.permission {
  padding-left: 0;
  padding-right: 0;
  /*width: 75px;*/
}

//.permission-checkbox-container {
//  transition: filter .4s;
//  filter: grayscale(100%);
//}
//
//.permission-checkbox-container:hover {
//  filter: none;
//}


::v-deep {
  .permission-checkbox-container .v-input {
    transform: scale(.8);
  }

  .v-overlay__content {
    height: 100%;
    display: flex;
    align-items: center;
  }
  table{
    border-collapse: collapse;
  }
}

.role-op-header {
  position: relative;

  .custom-acl {
    opacity: 0;
    transition: opacity .4s;
    position: absolute;
    right: 1px;
    bottom: 1px;
  }

  .custom-acl-found {
    position: absolute;
    right: 1px;
    top: 1px;
  }

  &:hover .custom-acl {
    opacity: 1;
  }
}

</style>
<!--
/**
 * @copyright Copyright (c) 2021, Xgene Cloud Ltd
 *
 * @author Naveen MR <oof1lab@gmail.com>
 * @author Pranav C Balan <pranavxc@gmail.com>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */
-->
