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|
package gonf
import (
"log/slog"
)
// ----- Globals ---------------------------------------------------------------
var users []*UserPromise
// users management functions
var user_add_function func(data UserData) (Status, error)
// ----- Init ------------------------------------------------------------------
func init() {
users = make([]*UserPromise, 0)
}
// ----- Public ----------------------------------------------------------------
func SetUsersConfiguration(useradd func(data UserData) (Status, error)) {
user_add_function = useradd
}
func User(data UserData) *UserPromise {
if data.Name == "" {
panic("User() promise invoked without specifying a username")
}
return &UserPromise{
chain: nil,
data: data,
states: nil,
status: PROMISED,
}
}
type UserData struct {
HomeDir string
Name string
System bool
}
type UserPromise struct {
chain []Promise
data UserData
states []string
status Status
}
func (u *UserPromise) IfRepaired(p ...Promise) Promise {
u.chain = append(u.chain, p...)
return u
}
func (u *UserPromise) Promise() Promise {
users = append(users, u)
return u
}
func (u *UserPromise) Resolve() {
var err error
u.status, err = user_add_function(u.data)
switch u.status {
case BROKEN:
slog.Error("user", "name", u.data.Name, "status", u.status, "error", err)
case KEPT:
slog.Debug("user", "name", u.data.Name, "status", u.status)
case REPAIRED:
slog.Info("user", "name", u.data.Name, "status", u.status)
if u.status == REPAIRED {
for _, pp := range u.chain {
pp.Resolve()
}
}
}
}
func (u UserPromise) Status() Status {
return u.status
}
// ----- Internal --------------------------------------------------------------
func resolveUsers() (status Status) {
status = KEPT
for _, c := range users {
if c.status == PROMISED {
c.Resolve()
switch c.status {
case BROKEN:
return BROKEN
case REPAIRED:
status = REPAIRED
}
}
}
return
}
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