package main

import (
	"fmt"
	"log"
	"os"
	"path"
	"path/filepath"
	"strings"

	zord_tree "g.arns.lt/zordsdavini/zord-tree"
)

var config = zord_tree.NewConfig(
	[]string{".md"},
	"__a",
	customMeta,
	[]string{"\\.sync_.{12}\\.db"},
	map[string]zord_tree.AppCallback{"gallery": gallery},
)

func gallery(dir string, content string, info os.FileInfo) (string, error) {
	if info.Name() != "index.md" {
		return content, nil
	}

	fullPath := path.Join(dir, info.Name())
	_, _, fileMeta, err := zord_tree.GetFileParams(fullPath, meta)
	if err != nil {
		return content, err
	}

	if !strings.HasPrefix(fileMeta["app"], "gallery") {
		return content, nil
	}

	entries, err := os.ReadDir(dir)
	if err != nil {
		return content, err
	}

	content += "\n"
	for _, e := range entries {
		if e.Name() != "index.md" {
			content += fmt.Sprintf(
				"![%s](%s)\n",
				strings.TrimSuffix(e.Name(), filepath.Ext(e.Name())),
				e.Name(),
			)
		}
	}

	return content, nil
}

func Collect() {
	log.Println("Collect: start")
	if _, err := os.Stat(source); os.IsNotExist(err) {
		log.Print(err)
		panic("Source directory does not exist.")
	}

	log.Println("Collect: pre")
	_ = zord_tree.PopulateTree(source, meta, config)
	log.Println("Collect: post")
}