package routes

import (
	"dk/internal/components"
	"dk/internal/models/news"
	"dk/internal/models/users"
	"runtime"
	"strings"
	"time"

	sushi "git.sharkk.net/Sharkk/Sushi"
	"git.sharkk.net/Sharkk/Sushi/auth"
)

func RegisterAdminRoutes(app *sushi.App) {
	group := app.Group("/admin")
	group.Use(auth.RequireAuth())
	group.Use(func(ctx sushi.Ctx, next func()) {
		if ctx.GetCurrentUser().(*users.User).Auth < 4 {
			ctx.Redirect("/")
			return
		}
		next()
	})

	group.Get("/", adminIndex)
	group.Get("/news", adminNewsForm)
	group.Post("/news", adminNewsCreate)
}

func adminIndex(ctx sushi.Ctx) {
	var m runtime.MemStats
	runtime.ReadMemStats(&m)

	components.RenderAdminPage(ctx, "", "admin/home.html", map[string]any{
		"alloc_mb":         bToMb(m.Alloc),
		"total_alloc_mb":   bToMb(m.TotalAlloc),
		"sys_mb":           bToMb(m.Sys),
		"heap_alloc_mb":    bToMb(m.HeapAlloc),
		"heap_sys_mb":      bToMb(m.HeapSys),
		"heap_released_mb": bToMb(m.HeapReleased),
		"gc_cycles":        m.NumGC,
		"gc_pause_total":   m.PauseTotalNs / 1000000, // ms
		"goroutines":       runtime.NumGoroutine(),
		"cpu_cores":        runtime.NumCPU(),
		"go_version":       runtime.Version(),
	})
}

func adminNewsForm(ctx sushi.Ctx) {
	components.RenderAdminPage(ctx, "", "admin/news.html", map[string]any{})
}

func adminNewsCreate(ctx sushi.Ctx) {
	sess := ctx.GetCurrentSession()
	content := strings.TrimSpace(ctx.Form("content").String())

	if content == "" {
		sess.SetFlash("error", "Content cannot be empty")
		ctx.Redirect("/admin/news")
		return
	}

	user := ctx.GetCurrentUser().(*users.User)
	newsPost := &news.News{
		Author:  user.ID,
		Content: content,
		Posted:  time.Now().Unix(),
	}

	if err := newsPost.Insert(); err != nil {
		sess.SetFlash("error", "Failed to create news post")
		ctx.Redirect("/admin/news")
		return
	}

	sess.SetFlash("success", "News post created successfully")
	ctx.Redirect("/admin")
}

func bToMb(b uint64) uint64 {
	return b / 1024 / 1024
}