package routes

import (
	"encoding/json"
	"os"
	"path"
	"strings"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/log"
)

var news_path = path.Join("content", "news")

func NewsRoute(c *fiber.Ctx) error {
  var res []Content
  entries, err := os.ReadDir(news_path)
  if err != nil {
    log.Errorf("Cannot news dir: %s", err)
    return RenderError(c, 500)  
  }

  for _, e := range entries {
    if(!strings.HasSuffix(e.Name(), ".json")) {
      continue
    }

    var con Content
    jsonc, err := os.ReadFile(path.Join(news_path, e.Name()))
    if err != nil {
      log.Errorf("Cannot news JSON: %s", err)
      return RenderError(c, 500)  
    }
    err = json.Unmarshal(jsonc, &con)
    if err != nil {
      log.Errorf("Cannot parse news JSON: %s", err)
      return RenderError(c, 500)  
    }
    
    res = append(res, con)
  }

  return c.Render("news", fiber.Map{
    "news": res,
  })
}

func PostRoute(c *fiber.Ctx) error {
  postid := c.Params("id")
  if len(postid) == 0 {
    return RenderError(c, 404)
  }

  var res Content
  entries, err := os.ReadDir(news_path)
  if err != nil {
    log.Errorf("Cannot news dir: %s", err)
    return RenderError(c, 500) 
  }

  for _, e := range entries {
    if(!strings.HasSuffix(e.Name(), ".json")) {
      continue
    }

    jsonc, err := os.ReadFile(path.Join(news_path, e.Name()))
    if err != nil {
      log.Errorf("Cannot news JSON: %s", err)
      return RenderError(c, 500)  
    }
    
    err = json.Unmarshal(jsonc, &res)
    if err != nil {
      log.Errorf("Cannot parse news JSON: %s", err)
      return RenderError(c, 500)   
    }

    if(res.ID == postid) {
      res, err = GetContent(news_path, strings.Split(e.Name(), ".json")[0])
      if err != nil {
        log.Errorf("Cannot get content: %s", err)
        return RenderError(c, 500)
      }

      return c.Render("post", fiber.Map{
        "post": res,
      }) 
    }
  }

  return RenderError(c, 404) 
}