#!/bin/bash

cat > /tmp/grafana_check.sh << EOF
curl -k \
     -X GET "http://grafana:3000/api/datasources" \
     -u 'admin:vagrant' \
     -H "content-type:application/json" \
| grep '"name":"OpenSearch"'
EOF

cat > /tmp/grafana_initial_setup.sh << EOF
curl -k \
     -X POST "http://grafana:3000/api/datasources" \
     -u 'admin:vagrant' \
     -H "content-type:application/json" \
     -d '
        {
          "orgId": 1,
          "name": "OpenSearch",
          "type": "grafana-opensearch-datasource",
          "typeName": "OpenSearch",
          "typeLogoUrl": "public/plugins/grafana-opensearch-datasource/img/logo.svg",
          "access": "proxy",
          "url": "https://opensearch-node1:9200",
          "basicAuth": true,
          "basicAuthUser": "admin",
          "isDefault": true,
          "secureJsonData": {
            "basicAuthPassword": "vagrant"
          },
          "jsonData": {
            "database": "logstash-*",
            "esVersion": "8.0.0",
            "flavor": "opensearch",
            "logLevelField": "fields.level",
            "logMessageField": "message",
            "maxConcurrentShardRequests": 5,
            "pplEnabled": true,
            "timeField": "@timestamp",
            "tlsAuthWithCACert": false,
            "tlsSkipVerify": true,
            "version": "1.0.0"
          },
          "readOnly": false
        }
     '
EOF

chmod +x /tmp/grafana*.sh

until "/tmp/grafana_check.sh" ; do
    echo "Grafana settings not applied; retrying" 
    /tmp/grafana_initial_setup.sh
    sleep 10
done
echo "Grafana settings applied"