package handler

import (
	"encoding/json"

	"github.com/gofiber/fiber/v2"
	"git.tukangketik.id/swanadiva/hostkeeper/v2/internal/model"
	"git.tukangketik.id/swanadiva/hostkeeper/v2/internal/store"
)

func jsonOrEmpty(v interface{}) string {
	b, err := json.Marshal(v)
	if err != nil {
		return "[]"
	}
	return string(b)
}

func allTags(snippets []model.Snippet) []string {
	seen := map[string]bool{}
	var out []string
	for _, sn := range snippets {
		for _, t := range sn.Tags {
			if !seen[t] {
				seen[t] = true
				out = append(out, t)
			}
		}
	}
	return out
}

var snippetStore = store.NewSnippetStore()

func Snippets(c *fiber.Ctx) error {
	if c.Get("HX-Request") != "" {
		return SnippetGrid(c)
	}
	snippets := snippetStore.All()
	return c.Render("snippets", fiber.Map{
		"View":          "snippets",
		"Title":         "Snippets",
		"Snippets":      snippets,
		"SnippetsJSON":  jsonOrEmpty(snippets),
		"AllTags":       allTags(snippets),
		"NavItems":      navItems,
	})
}

func SnippetGrid(c *fiber.Ctx) error {
	q := c.Query("q", "")
	collection := c.Query("collection", "")
	tag := c.Query("tag", "")
	snippets := snippetStore.Search(q, collection, tag)
	return c.Render("snippet_grid", fiber.Map{
		"Snippets":     snippets,
		"SnippetsJSON": jsonOrEmpty(snippets),
	})
}

func CreateSnippet(c *fiber.Ctx) error {
	name := c.FormValue("name")
	content := c.FormValue("content")
	language := c.FormValue("language")
	description := c.FormValue("description")
	collection := c.FormValue("collection")
	tagStr := c.FormValue("tags")
	var tags []string
	if tagStr != "" {
		tags = []string{tagStr}
	}
	snippetStore.Add(name, content, language, tags, description, collection)
	snippets := snippetStore.All()
	return c.Render("snippet_grid", fiber.Map{
		"Snippets":     snippets,
		"SnippetsJSON": jsonOrEmpty(snippets),
	})
}

func DeleteSnippet(c *fiber.Ctx) error {
	id := c.Params("id")
	snippetStore.Delete(id)
	snippets := snippetStore.All()
	return c.Render("snippet_grid", fiber.Map{
		"Snippets":     snippets,
		"SnippetsJSON": jsonOrEmpty(snippets),
	})
}