package I2C

import (
    "fmt"
    "sync"
    "time"
)

type I2CDevice struct {
    *I2CBus             // embeds bus
    bool                // stores whether dev is currently connected
    int                 // addr
    Data *data
}

type data struct {
    string
    bool
    sync.Mutex
}

func (d I2CDevice) String() string {
    t := map[int]string{97:"DO Sensor",99:"pH Sensor",102:"Temperature Sensor"}
    return t[d.int]
}

func NewDevice(addr int,bus *I2CBus) *I2CDevice {
    d := &I2CDevice{}
    d.I2CBus = bus
    d.int = addr
    d.Data = &data{}
    return d
}

func (d *I2CDevice) GetAddr() int {
    return d.int
}

func (d *I2CDevice) GetStatus() string {
    // TODO
    s := d.I2CBus.GetStatus(d.int)
    if s {
        d.Data.Active()
        return "[green]ACTIVE[white]"
    } else {
        d.Data.Killed()
        return "[red]KILLED[white]"
    }
}

func (d *I2CDevice) GetType() string {
    // TODO
    return fmt.Sprint(d)
}

func (d *I2CDevice) GetData() string {
    d.Data.Lock()
    defer d.Data.Unlock()
    return d.Data.string
}

func (d *data) Active() {
    d.Lock()
    defer d.Unlock()
    if !d.bool {
        d.string = ""
        d.bool = true
    }
}

func (d *data) Killed() {
    d.Lock()
    defer d.Unlock()
    if d.bool {
        d.string = time.Now().Format("Mon at 03:04:05pm MST")
        d.bool = false
    }
}