130 lines
3.1 KiB
Go
130 lines
3.1 KiB
Go
/*
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*
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* Gosora Task System
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* Copyright Azareal 2017 - 2018
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*
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*/
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package common
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import (
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"database/sql"
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"log"
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"time"
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"github.com/Azareal/Gosora/query_gen"
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)
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type TaskStmts struct {
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getExpiredScheduledGroups *sql.Stmt
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getSync *sql.Stmt
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}
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var ScheduledHalfSecondTasks []func() error
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var ScheduledSecondTasks []func() error
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var ScheduledFifteenMinuteTasks []func() error
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var ScheduledHourTasks []func() error
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var ShutdownTasks []func() error
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var taskStmts TaskStmts
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var lastSync time.Time
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// TODO: Add a TaskInits.Add
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func init() {
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lastSync = time.Now()
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DbInits.Add(func(acc *qgen.Accumulator) error {
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taskStmts = TaskStmts{
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getExpiredScheduledGroups: acc.Select("users_groups_scheduler").Columns("uid").Where("UTC_TIMESTAMP() > revert_at AND temporary = 1").Prepare(),
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getSync: acc.Select("sync").Columns("last_update").Prepare(),
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}
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return acc.FirstError()
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})
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}
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// AddScheduledHalfSecondTask is not concurrency safe
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func AddScheduledHalfSecondTask(task func() error) {
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ScheduledHalfSecondTasks = append(ScheduledHalfSecondTasks, task)
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}
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// AddScheduledSecondTask is not concurrency safe
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func AddScheduledSecondTask(task func() error) {
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ScheduledSecondTasks = append(ScheduledSecondTasks, task)
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}
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// AddScheduledFifteenMinuteTask is not concurrency safe
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func AddScheduledFifteenMinuteTask(task func() error) {
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ScheduledFifteenMinuteTasks = append(ScheduledFifteenMinuteTasks, task)
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}
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// AddScheduledHourTask is not concurrency safe
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func AddScheduledHourTask(task func() error) {
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ScheduledHourTasks = append(ScheduledHourTasks, task)
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}
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// AddShutdownTask is not concurrency safe
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func AddShutdownTask(task func() error) {
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ShutdownTasks = append(ShutdownTasks, task)
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}
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// TODO: Use AddScheduledSecondTask
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func HandleExpiredScheduledGroups() error {
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rows, err := taskStmts.getExpiredScheduledGroups.Query()
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if err != nil {
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return err
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}
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defer rows.Close()
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var uid int
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for rows.Next() {
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err := rows.Scan(&uid)
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if err != nil {
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return err
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}
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// Sneaky way of initialising a *User, please use the methods on the UserStore instead
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user := BlankUser()
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user.ID = uid
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err = user.RevertGroupUpdate()
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if err != nil {
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return err
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}
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}
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return rows.Err()
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}
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// TODO: Use AddScheduledSecondTask
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// TODO: Be a little more granular with the synchronisation
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// TODO: Synchronise more things
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// TODO: Does this even work?
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func HandleServerSync() error {
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// We don't want to run any unnecessary queries when there is nothing to synchronise
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/*if Config.ServerCount > 1 {
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return nil
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}*/
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var lastUpdate time.Time
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err := taskStmts.getSync.QueryRow().Scan(&lastUpdate)
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if err != nil {
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return err
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}
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if lastUpdate.After(lastSync) {
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err = Forums.LoadForums()
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if err != nil {
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log.Print("Unable to reload the forums")
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return err
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}
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// TODO: Resync the groups
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// TODO: Resync the permissions
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err = LoadSettings()
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if err != nil {
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log.Print("Unable to reload the settings")
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return err
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}
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err = WordFilters.ReloadAll()
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if err != nil {
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log.Print("Unable to reload the word filters")
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return err
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}
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}
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return nil
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}
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