<template lang='pug'>
  v-card(tile, :color='$vuetify.dark ? "grey darken-4" : "grey lighten-5"')
    .pa-3.pt-4
      .admin-header-icon: v-icon(size='80', color='grey lighten-2') graphic_eq
      .headline.primary--text Logging
      .subheading.grey--text Configure the system logger(s)
    v-tabs(:color='$vuetify.dark ? "primary" : "grey lighten-4"', fixed-tabs, :slider-color='$vuetify.dark ? "white" : "primary"', show-arrows)
      v-tab(key='settings'): v-icon settings
      v-tab(v-for='logger in activeLoggers', :key='logger.key') {{ logger.title }}

      v-tab-item(key='settings', :transition='false', :reverse-transition='false')
        v-card.pa-3(flat, tile)
          .body-2.grey--text.text--darken-1 Select which logging service to enable:
          .caption.grey--text.pb-2 Some loggers require additional configuration in their dedicated tab (when selected).
          v-form
            v-checkbox.my-0(
              v-for='(logger, n) in loggers'
              v-model='logger.isEnabled'
              :key='logger.key'
              :label='logger.title'
              color='primary'
              hide-details
            )

      v-tab-item(v-for='(logger, n) in activeLoggers', :key='logger.key', :transition='false', :reverse-transition='false')
        v-card.pa-3(flat, tile)
          v-form
            .loggerlogo
              img(:src='logger.logo', :alt='logger.title')
            v-subheader.pl-0 {{logger.title}}
            .caption {{logger.description}}
            .caption: a(:href='logger.website') {{logger.website}}
            v-divider.mt-3
            v-subheader.pl-0 Logger Configuration
            .body-1.ml-3(v-if='!logger.config || logger.config.length < 1') This logger has no configuration options you can modify.
            template(v-else, v-for='cfg in logger.config')
              v-select(
                v-if='cfg.value.type === "string" && cfg.value.enum'
                outline
                background-color='grey lighten-2'
                :items='cfg.value.enum'
                :key='cfg.key'
                :label='cfg.value.title'
                v-model='cfg.value.value'
                prepend-icon='settings_applications'
                :hint='cfg.value.hint ? cfg.value.hint : ""'
                persistent-hint
                :class='cfg.value.hint ? "mb-2" : ""'
              )
              v-switch(
                v-else-if='cfg.value.type === "boolean"'
                :key='cfg.key'
                :label='cfg.value.title'
                v-model='cfg.value.value'
                color='primary'
                prepend-icon='settings_applications'
                :hint='cfg.value.hint ? cfg.value.hint : ""'
                persistent-hint
                )
              v-text-field(
                v-else
                outline
                background-color='grey lighten-2'
                :key='cfg.key'
                :label='cfg.value.title'
                v-model='cfg.value.value'
                prepend-icon='settings_applications'
                :hint='cfg.value.hint ? cfg.value.hint : ""'
                persistent-hint
                :class='cfg.value.hint ? "mb-2" : ""'
                )
            v-divider.mt-3
            v-subheader.pl-0 Log Level
            .body-1.ml-3 Select the minimum error level that will be reported to this logger.
            v-layout(row)
              v-flex(xs12, md6, lg4)
                .pt-3
                  v-select(
                    single-line
                    outline
                    background-color='grey lighten-2'
                    :items='levels'
                    label='Level'
                    v-model='logger.level'
                    prepend-icon='graphic_eq'
                    hint='Default: warn'
                    persistent-hint
                  )

    v-card-chin
      v-btn(color='primary', @click='save')
        v-icon(left) chevron_right
        span Apply Configuration
      v-btn(color='black', dark, @click='toggleConsole')
        v-icon(left) keyboard
        span View Console
      v-btn(color='black', dark)
        v-icon(left) layers_clear
        span Purge Logs
      v-spacer
      v-btn(icon, @click='refresh')
        v-icon.grey--text refresh

    logging-console(v-model='showConsole')
</template>

<script>
import _ from 'lodash'

import LoggingConsole from './admin-logging-console.vue'

import loggersQuery from 'gql/admin/logging/logging-query-loggers.gql'
import loggersSaveMutation from 'gql/admin/logging/logging-mutation-save-loggers.gql'

export default {
  components: {
    LoggingConsole
  },
  data() {
    return {
      showConsole: false,
      loggers: [],
      levels: ['error', 'warn', 'info', 'debug', 'verbose']
    }
  },
  computed: {
    activeLoggers() {
      return _.filter(this.loggers, 'isEnabled')
    }
  },
  methods: {
    async refresh() {
      await this.$apollo.queries.loggers.refetch()
      this.$store.commit('showNotification', {
        message: 'List of loggers has been refreshed.',
        style: 'success',
        icon: 'cached'
      })
    },
    async save() {
      this.$store.commit(`loadingStart`, 'admin-logging-saveloggers')
      await this.$apollo.mutate({
        mutation: loggersSaveMutation,
        variables: {
          loggers: this.loggers.map(tgt => _.pick(tgt, [
            'isEnabled',
            'key',
            'config',
            'level'
          ])).map(str => ({...str, config: str.config.map(cfg => ({...cfg, value: cfg.value.value}))}))
        }
      })
      this.$store.commit('showNotification', {
        message: 'Logging configuration saved successfully.',
        style: 'success',
        icon: 'check'
      })
      this.$store.commit(`loadingStop`, 'admin-logging-saveloggers')
    }
  },
  apollo: {
    loggers: {
      query: loggersQuery,
      fetchPolicy: 'network-only',
      update: (data) => _.cloneDeep(data.logging.loggers).map(str => ({...str, config: str.config.map(cfg => ({...cfg, value: JSON.parse(cfg.value)}))})),
      watchLoading (isLoading) {
        this.$store.commit(`loading${isLoading ? 'Start' : 'Stop'}`, 'admin-logging-refresh')
      }
    }
  }
}
</script>

<style lang='scss' scoped>

.loggerlogo {
  width: 250px;
  height: 85px;
  float:right;
  display: flex;
  justify-content: flex-end;
  align-items: center;

  img {
    max-width: 100%;
    max-height: 50px;
  }
}

</style>