package clientcmd

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

	clientconfig "github.com/deranjer/gvc/client/clientconfig"
)

//AddFiles adds files to the repo, inputType specifies file, folder, wildcard or all
func AddFiles(input string, inputType string, ignore clientconfig.FileTypes) error {
	err := validateFileType(input, inputType) // Making sure that if the file flag was used a folder was not supplied and vice versa
	if err != nil {
		return err
	}
	workingDir, err := os.Getwd()
	if err != nil {
		return err
	}
	var trackedFiles []string
	switch inputType {
	case "file": // If the -file flag was used, then make sure it is a file, make sure not on ignore list, then add it to tracked files
		_, err := os.Stat(input)
		if err != nil {
			return fmt.Errorf("unable to add file %s", err)
		}
		err = checkFileTypes(input, "file", ignore)
		if err != nil {
			return fmt.Errorf("unable to add file as it (or ext) is on the ignores list %s", input)
		}
		relativePath, err := filepath.Rel(workingDir, input)
		if err != nil {
			return fmt.Errorf("unable to create relative path for file: %s", err)
		}
		trackedFiles = append(trackedFiles, relativePath)
		fmt.Println("adding file: ", relativePath)
	case "folder":
		folder, err := os.Stat(input)
		if err != nil {
			return fmt.Errorf("unable to add folder %s", err)
		}
		if !folder.IsDir() {
			return fmt.Errorf("file exists, but is not a folder %s", err)
		}
		filepath.Walk(input, func(path string, info os.FileInfo, err error) error {
			currentFile := filepath.Base(path)
			if err != nil {
				return fmt.Errorf("failure accessing path %s", err)
			}
			if info.IsDir() {
				err = checkFileTypes(currentFile, "folder", ignore)
			} else {
				err = checkFileTypes(currentFile, "file", ignore)
			}
			if err != nil {
				fmt.Printf("Not adding file %s as it is on the ingores list \n", currentFile)
				return nil
			}
			fmt.Println("adding file: ", path)
			relativePath, err := filepath.Rel(workingDir, path)
			if err != nil {
				return fmt.Errorf("unable to create relative path for file: %s", err)
			}
			trackedFiles = append(trackedFiles, relativePath)
			return nil
		})
	case "wildcard":
		var wildcard string
		if input[:1] == "*" { // Removing the wildcard char since we don't store that or test with that char
			wildcard = input[1:]
		} else {
			wildcard = input
		}
		err := checkFileTypes(wildcard, "wildcard", ignore)
		if err != nil {
			return err
		}
		filepath.Walk(workingDir, func(path string, info os.FileInfo, err error) error {
			currentFile := filepath.Base(path) // Stripping all the pathing so we just get the filename
			if err != nil {
				return fmt.Errorf("failure accessing path %s", err)
			}
			if info.IsDir() {
				err = checkFileTypes(currentFile, "folder", ignore)
			} else {
				err = checkFileTypes(currentFile, "file", ignore)
			}
			if err != nil {
				fmt.Printf("Not adding file %s as it is on the ingores list \n", currentFile)
				return nil
			}
			fileExt := filepath.Ext(path)
			if fileExt == wildcard { // seeing if the file ext matches the wildcard
				fmt.Println("Adding file that matched wildcard: ", currentFile)
				relativePath, err := filepath.Rel(workingDir, path)
				if err != nil {
					return fmt.Errorf("unable to create relative path for file: %s", err)
				}
				trackedFiles = append(trackedFiles, relativePath)
			}
			return nil
		})
	case "all":
		filepath.Walk(workingDir, func(path string, info os.FileInfo, err error) error {
			currentFile := filepath.Base(path)
			if err != nil {
				return fmt.Errorf("failure accessing path %s", err)
			}
			if info.IsDir() {
				err = checkFileTypes(currentFile, "folder", ignore)
			} else {
				err = checkFileTypes(currentFile, "file", ignore)
			}
			if err != nil {
				fmt.Printf("Not adding file %s as it is on the ingores list \n", currentFile)
				return nil
			}
			relativePath, err := filepath.Rel(workingDir, path)
			if err != nil {
				return fmt.Errorf("unable to create relative path for file: %s", err)
			}
			if relativePath == "." { //Ignoring current directory
				return nil
			}
			trackedFiles = append(trackedFiles, relativePath)
			return nil
		})
	}
	fmt.Println("Added tracked files", trackedFiles) // Print out all the new tracked files
	return nil
}

// checkRemotesSlice just ranges through the remotes looking for duplicates
func checkRemotesSlice(name, host string, port int, remotes []clientconfig.Remote) error {
	for _, remote := range remotes { // Names of remotes must be unique so make sure they are
		if name == remote.Name {
			return fmt.Errorf("remote with that name already exits: %s", name)
		}
	}
	for _, remote := range remotes { // make sure we don't have another remote with same host and port
		if host == remote.Host && port == remote.Port {
			return fmt.Errorf("remote with that host and port config already exists: %s:%d", host, port)
		}
	}
	return nil
}