package models

import (
	"errors"
	"time"

	"github.com/grafana/grafana/pkg/components/simplejson"
)

const (
	DS_GRAPHITE      = "graphite"
	DS_INFLUXDB      = "influxdb"
	DS_INFLUXDB_08   = "influxdb_08"
	DS_ES            = "elasticsearch"
	DS_OPENTSDB      = "opentsdb"
	DS_CLOUDWATCH    = "cloudwatch"
	DS_KAIROSDB      = "kairosdb"
	DS_PROMETHEUS    = "prometheus"
	DS_ACCESS_DIRECT = "direct"
	DS_ACCESS_PROXY  = "proxy"
)

// Typed errors
var (
	ErrDataSourceNotFound   = errors.New("Data source not found")
	ErrDataSourceNameExists = errors.New("Data source with same name already exists")
)

type DsAccess string

type DataSource struct {
	Id      int64
	OrgId   int64
	Version int

	Name              string
	Type              string
	Access            DsAccess
	Url               string
	Password          string
	User              string
	Database          string
	BasicAuth         bool
	BasicAuthUser     string
	BasicAuthPassword string
	TlsAuth           bool
	TlsClientCert     string
	TlsClientKey      string
	WithCredentials   bool
	IsDefault         bool
	JsonData          *simplejson.Json

	Created time.Time
	Updated time.Time
}

var knownDatasourcePlugins map[string]bool = map[string]bool{
	DS_ES:          true,
	DS_GRAPHITE:    true,
	DS_INFLUXDB:    true,
	DS_INFLUXDB_08: true,
	DS_KAIROSDB:    true,
	DS_CLOUDWATCH:  true,
	DS_PROMETHEUS:  true,
	DS_OPENTSDB:    true,
	"opennms":      true,
	"druid":        true,
	"dalmatinerdb": true,
	"gnocci":       true,
	"zabbix":       true,
}

func IsKnownDataSourcePlugin(dsType string) bool {
	_, exists := knownDatasourcePlugins[dsType]
	return exists
}

// ----------------------
// COMMANDS

// Also acts as api DTO
type AddDataSourceCommand struct {
	Name              string           `json:"name" binding:"Required"`
	Type              string           `json:"type" binding:"Required"`
	Access            DsAccess         `json:"access" binding:"Required"`
	Url               string           `json:"url"`
	Password          string           `json:"password"`
	Database          string           `json:"database"`
	User              string           `json:"user"`
	BasicAuth         bool             `json:"basicAuth"`
	BasicAuthUser     string           `json:"basicAuthUser"`
	BasicAuthPassword string           `json:"basicAuthPassword"`
	TlsAuth           bool             `json:"tlsAuth"`
	TlsClientCert     string           `json:"tlsClientCert"`
	TlsClientKey      string           `json:"tlsClientKey"`
	WithCredentials   bool             `json:"withCredentials"`
	IsDefault         bool             `json:"isDefault"`
	JsonData          *simplejson.Json `json:"jsonData"`

	OrgId int64 `json:"-"`

	Result *DataSource
}

// Also acts as api DTO
type UpdateDataSourceCommand struct {
	Name              string           `json:"name" binding:"Required"`
	Type              string           `json:"type" binding:"Required"`
	Access            DsAccess         `json:"access" binding:"Required"`
	Url               string           `json:"url"`
	Password          string           `json:"password"`
	User              string           `json:"user"`
	Database          string           `json:"database"`
	BasicAuth         bool             `json:"basicAuth"`
	BasicAuthUser     string           `json:"basicAuthUser"`
	BasicAuthPassword string           `json:"basicAuthPassword"`
	TlsAuth           bool             `json:"tlsAuth"`
	TlsClientCert     string           `json:"tlsClientCert"`
	TlsClientKey      string           `json:"tlsClientKey"`
	WithCredentials   bool             `json:"withCredentials"`
	IsDefault         bool             `json:"isDefault"`
	JsonData          *simplejson.Json `json:"jsonData"`

	OrgId int64 `json:"-"`
	Id    int64 `json:"-"`
}

type DeleteDataSourceCommand struct {
	Id    int64
	OrgId int64
}

// ---------------------
// QUERIES

type GetDataSourcesQuery struct {
	OrgId  int64
	Result []*DataSource
}

type GetDataSourceByIdQuery struct {
	Id     int64
	OrgId  int64
	Result *DataSource
}

type GetDataSourceByNameQuery struct {
	Name   string
	OrgId  int64
	Result *DataSource
}

// ---------------------
// EVENTS
type DataSourceCreatedEvent struct {
}