package models

import (
	"path/filepath"
	"strings"
	"time"
)

type FileType string

const (
	FileTypeMarkdown  FileType = "md"
	FileTypeDirectory FileType = "dir"
	FileTypeImage     FileType = "image"
	FileTypeText      FileType = "text"
	FileTypeOther     FileType = "other"
)

type FileInfo struct {
	Name        string    `json:"name"`
	Path        string    `json:"path"`
	Type        FileType  `json:"type"`
	Size        int64     `json:"size"`
	ModTime     time.Time `json:"mod_time"`
	DisplayName string    `json:"display_name"`
}

type TreeNode struct {
	Name     string      `json:"name"`
	Path     string      `json:"path"`
	Type     FileType    `json:"type"`
	Children []*TreeNode `json:"children,omitempty"`
}

type Breadcrumb struct {
	Name string `json:"name"`
	URL  string `json:"url"`
}

type ImageStorageInfo struct {
	StorageDir   string
	MarkdownPath string
}

func GetFileType(extension string, allowedImageExts, allowedFileExts []string) FileType {
	ext := strings.ToLower(strings.TrimPrefix(extension, "."))

	if ext == "md" || ext == "markdown" {
		return FileTypeMarkdown
	}

	// Check if it's an allowed image extension
	for _, allowedExt := range allowedImageExts {
		if strings.ToLower(strings.TrimPrefix(allowedExt, ".")) == ext {
			return FileTypeImage
		}
	}

	// Check if it's an allowed file extension
	for _, allowedExt := range allowedFileExts {
		if strings.ToLower(strings.TrimPrefix(allowedExt, ".")) == ext {
			return FileTypeText
		}
	}

	return FileTypeOther
}

func IsImageFile(filename string, allowedImageExts []string) bool {
	ext := strings.ToLower(filepath.Ext(filename))
	ext = strings.TrimPrefix(ext, ".")

	for _, allowedExt := range allowedImageExts {
		if strings.ToLower(strings.TrimPrefix(allowedExt, ".")) == ext {
			return true
		}
	}

	return false
}

func IsAllowedFile(filename string, allowedExts []string) bool {
	ext := strings.ToLower(filepath.Ext(filename))
	ext = strings.TrimPrefix(ext, ".")

	for _, allowedExt := range allowedExts {
		if strings.ToLower(strings.TrimPrefix(allowedExt, ".")) == ext {
			return true
		}
	}

	return false
}