package models

import (
	"encoding/json"
	"time"

	"github.com/grafana/grafana/pkg/kinds/dashboard"
	"github.com/grafana/grafana/pkg/services/user"
)

// PublicDashboardErr represents a dashboard error.
type PublicDashboardErr struct {
	StatusCode int
	Status     string
	Reason     string
}

// Error returns the error message.
func (e PublicDashboardErr) Error() string {
	if e.Reason != "" {
		return e.Reason
	}
	return "Dashboard Error"
}

const (
	QuerySuccess                                  = "success"
	QueryFailure                                  = "failure"
	EmailShareType                      ShareType = "email"
	PublicShareType                     ShareType = "public"
	FeaturePublicDashboardsEmailSharing           = "publicDashboardsEmailSharing"
)

var (
	QueryResultStatuses = []string{QuerySuccess, QueryFailure}
	ValidShareTypes     = []ShareType{EmailShareType, PublicShareType}
)

type ShareType string

type PublicDashboard struct {
	Uid          string    `json:"uid" xorm:"pk uid"`
	DashboardUid string    `json:"dashboardUid" xorm:"dashboard_uid"`
	OrgId        int64     `json:"-" xorm:"org_id"` // Don't ever marshal orgId to Json
	AccessToken  string    `json:"accessToken" xorm:"access_token"`
	CreatedBy    int64     `json:"createdBy" xorm:"created_by"`
	UpdatedBy    int64     `json:"updatedBy" xorm:"updated_by"`
	CreatedAt    time.Time `json:"createdAt" xorm:"created_at"`
	UpdatedAt    time.Time `json:"updatedAt" xorm:"updated_at"`
	//config fields
	TimeSettings         *TimeSettings `json:"-" xorm:"time_settings"`
	TimeSelectionEnabled bool          `json:"timeSelectionEnabled" xorm:"time_selection_enabled"`
	IsEnabled            bool          `json:"isEnabled" xorm:"is_enabled"`
	AnnotationsEnabled   bool          `json:"annotationsEnabled" xorm:"annotations_enabled"`
	Share                ShareType     `json:"share" xorm:"share"`
	Recipients           []EmailDTO    `json:"recipients,omitempty" xorm:"-"`
}

type PublicDashboardDTO struct {
	Uid                  string    `json:"uid"`
	AccessToken          string    `json:"accessToken"`
	TimeSelectionEnabled *bool     `json:"timeSelectionEnabled"`
	IsEnabled            *bool     `json:"isEnabled"`
	AnnotationsEnabled   *bool     `json:"annotationsEnabled"`
	Share                ShareType `json:"share"`
}

type EmailDTO struct {
	Uid       string `json:"uid"`
	Recipient string `json:"recipient"`
}

// Alias the generated type
type DashAnnotation = dashboard.AnnotationQuery

type AnnotationsDto struct {
	Annotations struct {
		List []DashAnnotation `json:"list"`
	}
}

type AnnotationEvent struct {
	Id          int64                     `json:"id"`
	DashboardId int64                     `json:"dashboardId"`
	PanelId     int64                     `json:"panelId"`
	Tags        []string                  `json:"tags"`
	IsRegion    bool                      `json:"isRegion"`
	Text        string                    `json:"text"`
	Color       string                    `json:"color"`
	Time        int64                     `json:"time"`
	TimeEnd     int64                     `json:"timeEnd"`
	Source      dashboard.AnnotationQuery `json:"source"`
}

func (pd PublicDashboard) TableName() string {
	return "dashboard_public"
}

type PublicDashboardListQuery struct {
	OrgID  int64
	Query  string
	Page   int
	Limit  int
	Offset int
	User   *user.SignedInUser
}

type PublicDashboardListResponseWithPagination struct {
	PublicDashboards []*PublicDashboardListResponse `json:"publicDashboards"`
	TotalCount       int64                          `json:"totalCount"`
	Page             int                            `json:"page"`
	PerPage          int                            `json:"perPage"`
}

type PublicDashboardListResponse struct {
	Uid          string `json:"uid" xorm:"uid"`
	AccessToken  string `json:"accessToken" xorm:"access_token"`
	Title        string `json:"title" xorm:"title"`
	DashboardUid string `json:"dashboardUid" xorm:"dashboard_uid"`
	IsEnabled    bool   `json:"isEnabled" xorm:"is_enabled"`
	Slug         string `json:"slug" xorm:"slug"`
}

type TimeSettings struct {
	From string `json:"from,omitempty"`
	To   string `json:"to,omitempty"`
}

func (ts *TimeSettings) FromDB(data []byte) error {
	return json.Unmarshal(data, ts)
}

func (ts *TimeSettings) ToDB() ([]byte, error) {
	return json.Marshal(ts)
}

// DTO for transforming user input in the api
type SavePublicDashboardDTO struct {
	Uid             string
	DashboardUid    string
	OrgID           int64
	UserId          int64
	PublicDashboard *PublicDashboardDTO
}

type TimeRangeDTO struct {
	From     string
	To       string
	Timezone string
}

type PublicDashboardQueryDTO struct {
	IntervalMs      int64
	MaxDataPoints   int64
	QueryCachingTTL int64
	TimeRange       TimeRangeDTO
}

type AnnotationsQueryDTO struct {
	From int64
	To   int64
}

//
// COMMANDS
//

type SavePublicDashboardCommand struct {
	PublicDashboard PublicDashboard
}