GoWeb/main.go

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package main
import (
"GoWeb/config"
"GoWeb/database"
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"GoWeb/internal"
"GoWeb/internal/models"
"GoWeb/internal/routes"
"GoWeb/templating"
"context"
"embed"
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"errors"
"log/slog"
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"net/http"
"os"
"os/signal"
"syscall"
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"time"
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)
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//go:embed internal/frontend/templates internal/frontend/static
var res embed.FS
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func main() {
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// Create instance of Deps
appLoaded := app.Deps{}
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// Load config file to application
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appLoaded.Config = config.LoadConfig()
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// Load templates
appLoaded.Res = &res
// Create logs directory if it doesn't exist
if _, err := os.Stat("logs"); os.IsNotExist(err) {
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err := os.Mkdir("logs", 0755)
if err != nil {
panic("failed to create log directory: " + err.Error())
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}
}
// Create log file and set output
file, err := os.OpenFile("logs/"+time.Now().Format("2006-01-02")+".log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
if err != nil {
panic("error creating log file: " + err.Error())
}
logger := slog.New(slog.NewTextHandler(file, nil))
slog.SetDefault(logger) // Set structured logger globally
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// Connect to database and run migrations
appLoaded.Db = database.Connect(&appLoaded)
if appLoaded.Config.Db.AutoMigrate {
err = models.RunAllMigrations(&appLoaded)
if err != nil {
slog.Error("error running migrations: " + err.Error())
os.Exit(1)
}
}
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// Assign and run scheduled tasks
appLoaded.ScheduledTasks = app.Scheduled{
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EveryReboot: []func(app *app.Deps){models.ScheduledSessionCleanup},
EveryMinute: []func(app *app.Deps){models.ScheduledSessionCleanup},
}
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// Define Routes
routes.Get(&appLoaded)
routes.Post(&appLoaded)
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// Prepare templates
err = templating.BuildPages(&appLoaded)
if err != nil {
slog.Error("error building templates: " + err.Error())
os.Exit(1)
}
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// Start server
server := &http.Server{Addr: appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port}
go func() {
slog.Info("starting server and listening on " + appLoaded.Config.Listen.Ip + ":" + appLoaded.Config.Listen.Port)
err := server.ListenAndServe()
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if err != nil && !errors.Is(err, http.ErrServerClosed) {
slog.Error("could not listen on %s: %v\n", appLoaded.Config.Listen.Ip+":"+appLoaded.Config.Listen.Port, err)
os.Exit(1)
}
}()
// Wait for interrupt signal and shut down the server
interrupt := make(chan os.Signal, 1)
signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM)
stop := make(chan struct{})
go app.RunScheduledTasks(&appLoaded, 100, stop)
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<-interrupt
slog.Info("interrupt signal received. Shutting down server...")
err = server.Shutdown(context.Background())
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if err != nil {
slog.Error("could not gracefully shutdown the server: %v\n", err)
os.Exit(1)
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}
}