package main

import (
	"InfantrySkillCalculator/controllers"
	"InfantrySkillCalculator/models"
	"InfantrySkillCalculator/utils"
	"github.com/gin-gonic/gin"
	_ "github.com/gorilla/sessions"
	"github.com/sirupsen/logrus"
	"gopkg.in/natefinch/lumberjack.v2"
	"html/template"
	"io"
	"os"
	"session"
	"strings"
	"time"
)

func init() {
	fileLogger := &lumberjack.Logger{
		Filename:   "isc_rest.log",
		MaxSize:    50, // megabytes
		MaxBackups: 3,
		MaxAge:     28, //days
		Compress:   true,
	}
	ginWriter := io.MultiWriter(fileLogger, os.Stdout)
	logger := logrus.New()
	logger.SetOutput(ginWriter)
	logger.SetFormatter(&logrus.TextFormatter{
		ForceColors:   true,
		FullTimestamp: true,
	})
	utils.Logger = logger

	var err error
	utils.MainPageTemplates, err = template.ParseFiles(
		"./templates/index.html",
		"./templates/components/home_clan_bar.html",
		"./templates/components/opp_clan_bar.html",
		"./templates/components/home_player_list.html",
		"./templates/components/opp_player_list.html",
		"./templates/components/bottom_controls.html",
		"./templates/modals/delete_clan.html",
		"./templates/modals/add_clan.html",
		"./templates/modals/edit_clan.html",
		"./templates/modals/add_player.html",
		"./templates/modals/delete_player.html",
		"./templates/modals/edit_player.html",
		"./templates/modals/single_calc.html",
		//"./templates/modals/settings.html",
		"./templates/modals/full_calc.html",
		"./templates/components/header.html",
	)
	if err != nil {
		logger.Fatalf("[MAIN] Error parsing main page templates: %v", err)
	}

	utils.LoginPageTemplates, err = template.ParseFiles(
		"./templates/login.html",
		"./templates/components/header.html",
	)
	if err != nil {
		logger.Fatalf("[MAIN] Error parsing login page templates: %v", err)
	}

	utils.RegisterPageTemplates, err = template.ParseFiles(
		"./templates/register.html",
		"./templates/components/header.html",
	)
	if err != nil {
		logger.Fatalf("[MAIN] Error parsing register page templates: %v", err)
	}

	utils.PlayerItemTemplate, err = template.ParseFiles(
		"./templates/shards/player_list_item.html",
	)
	if err != nil {
		logger.Fatalf("[MAIN] Error parsing player list item template: %v", err)
	}

	controllers.LoadMetrics()
}

func customLogrusLogger(logger *logrus.Logger) gin.HandlerFunc {
	return func(c *gin.Context) {
		start := time.Now()

		c.Next()

		elapsed := time.Since(start)

		if c.Request.URL.Path == "/static" || c.Request.URL.Path == "/favicon.ico" ||
			strings.Contains(c.Request.URL.Path, "_html") {
			return
		}

		username, exists := session.GetUsername(c)
		if !exists {
			username = "Anonymous"
		}

		logger.Infof("[GIN] %3d | %10.3fms | %15s | %15s | %15s | %-7s | %s",
			c.Writer.Status(),
			float64(elapsed.Microseconds())/1000.0,
			c.ClientIP(),
			c.Request.Header.Get("X-Forwarded-For"),
			username,
			c.Request.Method,
			c.Request.RequestURI,
		)
	}
}

func main() {
	if os.Getenv("GO_ENV") == "production" {
		gin.SetMode(gin.ReleaseMode)
	}

	router := gin.New()
	err := router.SetTrustedProxies([]string{"127.0.0.1"})
	if err != nil {
		utils.Logger.Fatalf("[MAIN] Error setting trusted proxies: %v", err)
	}
	router.LoadHTMLGlob("templates/**/*")
	reader := router.Group("/")
	reader.Use(ReaderAuthRequired())
	author := router.Group("/")
	author.Use(AuthorAuthRequired())
	admin := router.Group("/admin")
	admin.Use(AdminAuthRequired())

	models.ConnectDatabase()
	models.ConnectCache(utils.PlayerCacheLifetime, controllers.UpdateCacheAfterExpiry)

	var code models.ActivationCode
	if err := models.DB.First(&code).Error; err != nil {
		firstCode := utils.GenerateActivationCode()
		models.DB.Create(&models.ActivationCode{Code: firstCode, UserRole: models.AdminRole})
		utils.Logger.Println("[MAIN] Created first activation code with ADMIN role:\n" + firstCode)
	}

	router.Static("/static", "./static")

	middlewares := []gin.HandlerFunc{
		customLogrusLogger(utils.Logger),
		gin.Recovery(),
	}

	router.Use(middlewares...)
	reader.Use(middlewares...)
	author.Use(middlewares...)
	admin.Use(middlewares...)

	router.GET("/login", loginPage)
	router.POST("/login", loginPost)
	router.GET("/logout", logout)
	router.GET("/register", registerPage)
	router.POST("/register", registerPost)

	reader.GET("/", mainPage)

	reader.GET("/clans", controllers.GetAllClans)
	reader.GET("/clans_html", controllers.GetAllClansHTML)
	reader.GET("/clan/:id", controllers.GetClanByID)
	author.POST("/clan", controllers.AddClan)
	author.PATCH("/clan/:id", controllers.UpdateClanByID)
	author.DELETE("/clan/:id", controllers.DeleteClanByID)

	reader.GET("/players", controllers.GetAllPlayers)
	reader.GET("/players_html", controllers.GetPlayersByClanHTML)
	reader.GET("/player/:id", controllers.GetPlayerByID)
	author.POST("/player", controllers.AddPlayer)
	author.PATCH("/player/:id", controllers.UpdatePlayerByID)
	author.DELETE("/player/:id", controllers.DeletePlayerByID)

	reader.GET("/cache/:player_id", controllers.GetCacheByPlayerID)

	reader.GET("/score/:player_id", controllers.GetScoreByPlayerID)
	reader.POST("/score/:player_name", controllers.GetScoreByPlayerName)

	reader.GET("/game", controllers.GetGames)
	reader.GET("/game_html", controllers.GetGamesHTML)

	reader.GET("/settings", controllers.GetSettings)
	reader.PATCH("/settings", controllers.UpdateSettings)

	admin.DELETE("/clear_cache", controllers.DeleteAllCaches)
	admin.DELETE("/purge_players", controllers.DeleteAllPlayers)
	admin.DELETE("/purge_clans", controllers.DeleteAllClans)
	admin.POST("/create_code", controllers.CreateCode)

	utils.Logger.Println("[MAIN] Running on 8000...")
	utils.Logger.Fatalf("[MAIN] %v", router.Run(":8000"))
}