<template>
  <div class="graphql-logic">
    <v-toolbar flat height="42" class="toolbar-border-bottom">
      <v-toolbar-title>
        <v-breadcrumbs
          :items="[{
                     text: nodes.env,
                     disabled: true,
                     href: '#'
                   },{
                     text: nodes.dbAlias,
                     disabled: true,
                     href: '#'
                   },
                   {
                     text: (nodes.tn || nodes.view_name) + ' (APIs)',
                     disabled: true,
                     href: '#'
                   }]"
          divider=">"
          small
        >
          <template #divider>
            <v-icon small color="grey lighten-2">
              forward
            </v-icon>
          </template>
        </v-breadcrumbs>
      </v-toolbar-title>
      <v-spacer />
      <v-btn small outlined class="caption text-capitalize" color="primary" @click="showSwagger = !showSwagger">
        <v-icon small color="primary">
          {{ showSwagger ?'mdi-eye-off-outline' : 'mdi-eye-outline' }}
        </v-icon> &nbsp;

        {{ showSwagger ? 'Hide Schema' : 'Show Schema' }}
      </v-btn>
      <x-btn
        v-ge="['rows','reload']"
        outlined
        tooltip="Reload Rows"
        color="primary"
        small
        @click="loadSchema(); loadResolvers();"
      >
        <v-icon small left>
          refresh
        </v-icon>
        Reload
      </x-btn>
    </v-toolbar>

    <v-row class="mx-0" align="stretch">
      <v-col v-if="showSwagger">
        <v-card class="flex-shrink-1">
          <div class="text-center" style="padding: 3px">
            <span class="title schema-card-title">Schema</span>
          </div>
          <div class="d-flex pa-3">
            <v-spacer />

            <x-btn
              outlined
              :tooltip="`Compare GQL schema history of ${nodes.tn}`"
              color="primary"
              x-small
              :disabled="loading || !schemaHistory.length"
              @click.prevent="schemaDiffDialog = true"
            >
              <v-icon small left>
                mdi-source-branch
              </v-icon>
              History <span v-if="schemaHistory.length" class="history-count">({{ schemaHistory.length }})</span>
            </x-btn>
            <x-btn
              v-ge="['rows','save']"
              outlined
              tooltip="Save Changes"
              color="primary"
              x-small
              :disabled="loading"
              @click.prevent="saveSchema"
            >
              <v-icon small left>
                save
              </v-icon>
              Save
            </x-btn>
          </div>
          <monaco-editor
            v-model="schema"
            theme=""
            style="min-height:500px;"
          />
        </v-card>
      </v-col>
      <v-col>
        <v-card v-if="filteredData.length" class="flex-shrink-1" style="">
          <div class="text-center" style="padding: 3px">
            <span class="title schema-card-title">Resolvers & Middlewares</span>
          </div>
          <v-simple-table v-if="resolvers" dense>
            <!--          style="width: auto; min-width: 500px">-->
            <thead>
              <!--            <tr>-->

              <!--              <th colspan="3" class="text-center">-->

              <!--                <div class="text-center">-->

              <!--                  <span class="title card-title">Resolvers</span>-->
              <!--                </div>-->

              <!--              </th>-->

              <!--            </tr>-->
              <tr>
                <th colspan="3" class="text-center">
                  <v-text-field
                    v-model="search"
                    dense
                    hide-details
                    class="ma-2"
                    :placeholder="`Search '${nodes.tn}' resolvers`"
                    prepend-inner-icon="search"
                    outlined
                  />
                </th>
              </tr>
            </thead>
            <tbody>
              <template v-for="({resolver,title,functions},i) in filteredData">
                <tr
                  v-if="resolver"
                  :key="i"
                >
                  <td width="20" class="px-0" />
                  <td class="pl-0">
                    <v-tooltip bottom>
                      <template #activator="{ on }">
                        <span v-on="on">{{ resolver }}</span>
                      </template>
                      <span>{{ resolver }}</span>
                    </v-tooltip>
                  </td>
                  <td
                    width="60"
                    class="pa-1 text-center method-cell"
                  >
                    <v-tooltip bottom>
                      <template #activator="{ on }">
                        <v-hover v-slot="{ hover }">
                          <v-icon
                            small
                            :color="hover ? 'primary':''"
                            @click="showSourceCode(resolver,functions)"
                            v-on="on"
                          >
                            mdi-pencil
                          </v-icon>
                        </v-hover>
                      </template>
                      Edit business logic
                    </v-tooltip>
                  </td>
                </tr>
                <tr
                  v-else
                  :key="i"
                >
                  <td width="20" class="px-0" />
                  <td class="pl-0">
                    <v-tooltip bottom>
                      <template #activator="{ on }">
                        <span class="" v-on="on">{{ title }} - Middleware</span>
                      </template>
                      <span>{{ title }} - Middleware</span>
                    </v-tooltip>
                  </td>
                  <td
                    width="60"
                    class="pa-1 text-center method-cell"
                  >
                    <v-tooltip bottom>
                      <template #activator="{ on }">
                        <v-hover v-slot="{ hover }">
                          <v-icon
                            small
                            :color="hover ? 'primary':''"
                            @click="showMiddlewareSourceCode(title,functions)"
                            v-on="on"
                          >
                            mdi-pencil
                          </v-icon>
                        </v-hover>
                      </template>
                      Edit business logic
                    </v-tooltip>
                  </td>
                </tr>
              </template>
            </tbody>
          </v-simple-table>

          <v-alert v-else outlined type="info">
            Permission file not found
          </v-alert>
        </v-card>
      </v-col>
    </v-row>

    <gql-handler-code-editor
      v-model="showCodeEditor"
      :nodes="nodes"
      :functions="selectedFunctions"
      :resolver="editResolver"
      :is-middleware="isMiddleware"
    />

    <v-dialog v-model="schemaDiffDialog" scrollable min-width="600px">
      <v-card>
        <xc-diff
          v-model="schema"
          :history="schemaHistory"
        />
      </v-card>
    </v-dialog>
  </div>
</template>

<script>
import GqlHandlerCodeEditor from '@/components/project/gqlHandlerCodeEditor'
import MonacoEditor from '@/components/monaco/MonacoEditor'
import XcDiff from '@/components/xcDiff'

export default {
  name: 'LogicGql',
  components: { XcDiff, MonacoEditor, GqlHandlerCodeEditor },
  props: ['nodes'],
  data: () => ({
    showSwagger: false,
    selectedFunctions: null,
    schema: '',
    schemaHistory: [''],
    loading: false,
    search: '',
    groupedData: {},
    resolvers: [],

    editResolver: '',
    showCodeEditor: false,
    schemaDiffDialog: false,
    isMiddleware: false
  }),
  computed: {
    filteredData() {
      return this.resolvers.filter(({ resolver }) => !resolver || (!this.search || resolver.toLowerCase().includes(this.search.toLowerCase())))
    }
  },
  async created() {
    await this.loadResolvers()
    await this.loadSchema()
  },
  methods: {
    showSourceCode(resolver, functions) {
      this.selectedFunctions = functions
      this.editResolver = resolver
      this.isMiddleware = false
      this.showCodeEditor = true
    },
    showMiddlewareSourceCode(table, functions) {
      this.selectedFunctions = functions
      this.editResolver = table
      this.isMiddleware = true
      this.showCodeEditor = true
    },

    async saveSchema() {
      this.edited = false
      try {
        await this.$store.dispatch('sqlMgr/ActSqlOp', [{
          env: this.nodes.env,
          dbAlias: this.nodes.dbAlias
        }, 'xcModelSchemaSet', {
          tn: this.nodes.tn || this.nodes.view_name,
          schema: this.schema
        }])
        this.$toast.success('Successfully updated validations').goAway(3000)
      } catch (e) {
        this.$toast.error('Failed to update validations').goAway(3000)
      }
    },
    async loadSchema() {
      const tableMeta = await this.$store.dispatch('sqlMgr/ActSqlOp', [{
        env: this.nodes.env,
        dbAlias: this.nodes.dbAlias
      }, 'tableXcModelGet', {
        tn: this.nodes.tn || this.nodes.view_name
      }])
      this.schema = tableMeta.schema
      if (tableMeta.schema_previous) {
        this.schemaHistory = JSON.parse(tableMeta.schema_previous).reverse()
      } else {
        this.schemaHistory = []
      }
    },
    async loadResolvers() {
      this.resolvers = (await this.$store.dispatch('sqlMgr/ActSqlOp', [
        {
          env: this.nodes.env,
          dbAlias: this.nodes.dbAlias
        }, 'xcResolverPolicyGet', {
          tn: this.nodes.tn || this.nodes.view_name
        }])).data.list
    }
  }
}
</script>

<style scoped lang="scss">

@import "~vuetify/src/styles/styles";

$text-field-outlined-fieldset-padding: 0px;

//@import '~vuetify/src/styles/styles';
// Imports
//@import './_variables.scss'

.method-cell {
  border-left: 1px solid #aaa;
}

.history-count {
  font-size: 10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  color: var(--v-primary-base);
  display: inline-block;
  text-align: center;
  margin-left: 2px;
  border: 1px solid var(--v-primary-base);
}

@function map-deep-get($map, $keys...) {
  @each $key in $keys {
    $map: map-get($map, $key);
  }
  @return $map;
}

::v-deep {
  table th {
    height: auto !important;

    .v-input__control {
      height: auto !important;
    }
  }

  .card-title {
    color: var(--secondary-color);
  }
}
</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/>.
 *
 */
-->
