package routes

import (
	"dk/internal/actions"
	"dk/internal/components"
	"dk/internal/models/towns"
	"dk/internal/models/users"
	"dk/internal/router"
	"dk/internal/session"
	"slices"
	"strconv"
)

func Index(ctx router.Ctx, _ []string) {
	user, ok := ctx.UserValue("user").(*users.User)
	if !ok || user == nil {
		components.RenderPage(ctx, "", "intro.html", nil)
		return
	}

	switch user.Currently {
	case "In Town":
		ctx.Redirect("/town", 303)
	case "Exploring":
		ctx.Redirect("/explore", 303)
	default:
		ctx.Redirect("/explore", 303)
	}
}

func Move(ctx router.Ctx, _ []string) {
	user := ctx.UserValue("user").(*users.User)
	dir, err := strconv.Atoi(string(ctx.PostArgs().Peek("direction")))
	if err != nil {
		ctx.SetContentType("text/plain")
		ctx.SetBodyString("move form parsing error")
		return
	}

	currently, newX, newY, err := actions.Move(user, actions.Direction(dir))
	if err != nil {
		ctx.SetContentType("text/plain")
		ctx.SetBodyString("move error: " + err.Error())
		return
	}

	user.Currently = currently
	user.X, user.Y = newX, newY

	if currently == "In Town" {
		ctx.Redirect("/town", 303)
		return
	}

	ctx.Redirect("/explore", 303)
}

func Explore(ctx router.Ctx, _ []string) {
	user := ctx.UserValue("user").(*users.User)
	if user.Currently != "Exploring" {
		ctx.Redirect("/", 303)
		return
	}
	components.RenderPage(ctx, "", "explore.html", nil)
}

func Teleport(ctx router.Ctx, params []string) {
	sess := ctx.UserValue("session").(*session.Session)

	id, err := strconv.Atoi(params[0])
	if err != nil {
		sess.SetFlash("error", "Error teleporting; "+err.Error())
		ctx.Redirect("/", 302)
		return
	}

	town, err := towns.Find(id)
	if err != nil {
		sess.SetFlash("error", "Failed to teleport. Unknown town.")
		ctx.Redirect("/", 302)
		return
	}

	user := ctx.UserValue("user").(*users.User)
	if !slices.Contains(user.GetTownIDs(), id) {
		sess.SetFlash("error", "You don't have a map to "+town.Name+".")
		ctx.Redirect("/", 302)
		return
	}

	if user.TP < town.TPCost {
		sess.SetFlash("error", "You don't have enough TP to teleport to "+town.Name+".")
		ctx.Redirect("/", 302)
		return
	}

	user.TP -= town.TPCost
	user.X, user.Y = town.X, town.Y
	user.Currently = "In Town"
	user.Save()

	sess.SetFlash("success", "You teleported to "+town.Name+" successfully!")
	ctx.Redirect("/town", 302)
}