package common

import (
	"time"
)

// User data model
type User struct {
	// ID of user
	ID       uint   `gorm:"primary_key;auto_increment"`
	// Username of user
	Username string `gorm:"unique;not null"`
	// Password of user
	Password string `gorm:"not null"`
	// Mail of user
	Mail     string `gorm:"default:''"`
	// Role of user
	Role     string `gorm:"default:'user'"`
	// Simulations to which user has access
	Simulations []Simulation `gorm:"many2many:user_simulations"`
}


// Simulation data model
type Simulation struct {
	// ID of simulation
	ID              uint           `gorm:"primary_key;auto_increment"`
	// Name of simulation
	Name            string         `gorm:"not null"`
	// Running state of simulation
	Running         bool           `gorm:"default:false"`
	// Start parameters of simulation as JSON string
	StartParameters string
	// Users that have access to the simulation
	Users   		[]User 			`gorm:"not null;many2many:user_simulations"`
	// Models that belong to the simulation
	Models   		[]Model 		`gorm:"foreignkey:SimulationID"`
	// Visualizations that belong to the simulation
	Visualizations 	[]Visualization `gorm:"foreignkey:SimulationID"`
}

// Model data model
type Model struct {
	// ID of model
	ID              uint           `gorm:"primary_key;auto_increment"`
	// Name of model
	Name            string         `gorm:"not null"`
	// Number of output signals
	OutputLength    int            `gorm:"default:1"`
	// Number of input signals
	InputLength     int            `gorm:"default:1"`
	// Start parameters of model as JSON string
	StartParameters string
	// ID of simulation to which model belongs
	SimulationID 	uint
	// Simulator associated with model
	Simulator  		Simulator
	// ID of simulator associated with model
	SimulatorID 	uint
	// Mapping of output signals of the model, order of signals is important
	OutputMapping 	[]Signal
	// Mapping of input signals of the model, order of signals is important
	InputMapping  	[]Signal
	// Files of model (can be CIM and other model file formats)
	Files 		  	[]File 			`gorm:"foreignkey:ModelID"`
}

type Signal struct {
	// Name of Signal
	Name              string
	// Unit of Signal
	Unit              string
	// Index of the Signal in the mapping
	Index			  uint
	// Direction of the signal (in or out)
	Direction		  string
}


// Simulator data model
type Simulator struct {
	// ID of the simulator
	ID            uint   `gorm:"primary_key;auto_increment"`
	// UUID of the simulator
	UUID          string `gorm:"unique;not null"`
	// Host if the simulator
	Host          string `gorm:"default:''"`
	// Model type supported by the simulator
	Modeltype     string `gorm:"default:''"`
	// Uptime of the simulator
	Uptime        int    `gorm:"default:0"`
	// State of the simulator
	State         string `gorm:"default:''"`
	// Time of last state update
	StateUpdateAt time.Time
	// Properties of simulator as JSON string
	Properties    string
	// Raw properties of simulator as JSON string
	RawProperties string
}

// Visualization data model
type Visualization struct {
	// ID of visualization
	ID   uint   `gorm:"primary_key;auto_increment"`
	// Name of visualization
	Name string `gorm:"not null"`
	// Grid of visualization
	Grid int    `gorm:"default:15"`
	// ID of simulation to which visualization belongs
	SimulationID uint    `gorm:"not null"`
	// Widgets that belong to visualization
	Widgets []Widget `gorm:"foreignkey:VisualizationID"`
}


// Widget data model
type Widget struct {
	// ID of widget
	ID               uint           `gorm:"primary_key;auto_increment"`
	// Name of widget
	Name             string         `gorm:"not null"`
	// Type of widget
	Type             string         `gorm:"not null"`
	// Width of widget
	Width            uint           `gorm:"not null"`
	// Height of widget
	Height           uint           `gorm:"not null"`
	// Minimal width of widget
	MinWidth         uint           `gorm:"not null"`
	// Minimal height of widget
	MinHeight        uint           `gorm:"not null"`
	// X position of widget
	X                int            `gorm:"not null"`
	// Y position of widget
	Y                int            `gorm:"not null"`
	// Z position of widget
	Z                int            `gorm:"not null"`
	// Locked state of widget
	IsLocked         bool           `gorm:"default:false"`
	// Custom properties of widget as JSON string
	CustomProperties string
	// ID of visualization to which widget belongs
	VisualizationID  uint			`gorm:"not null"`
	// Files that belong to widget (for example images)
	Files 			 []File			`gorm:"foreignkey:WidgetID"`
}


// File data model
type File struct {
	// ID of file
	ID          uint   `gorm:"primary_key;auto_increment"`
	// Name of file
	Name        string `gorm:"not null"`
	// Path at which file is saved at server side
	Path        string `gorm:"not null"`
	// Type of file (MIME type)
	Type        string `gorm:"not null"`
	// Size of file (in byte)
	Size        uint   `gorm:"not null"`
	// Height of image (only needed in case of image)
	ImageHeight uint
	// Width of image (only needed in case of image)
	ImageWidth  uint
	// Last modification time of file
	Date        time.Time
	// ID of model to which file belongs
	ModelID uint `gorm:""`
	// ID of widget to which file belongs
	WidgetID uint `gorm:""`
}