# dttt

A versatile command-line toolkit providing various utility functions.

## Installation

```bash
go install git.bits.studio/public/dttt@latest
```

Or clone the repository and build it manually:

```bash
git clone git.bits.studio/public/dttt
cd dttt
go build -o dttt
```

## Commands

### resize

Resize images to a specified width while maintaining aspect ratio.

```bash
dttt resize [input_file] [output_file] [width]
```

Example:
```bash
dttt resize input.jpg output.jpg 300
```

### convert

Convert images between different formats including JPG, PNG, and WebP.

```bash
# Single file conversion
dttt convert [input_file] [output_file]

# Batch conversion
dttt convert [input_directory] [output_directory] --batch --format [format]
```

The output format is determined by the output file extension (for single file conversion) or the `--format` flag (for batch conversion).

Options:
- `--quality, -q`: Quality for lossy formats (1-100, default: 90)
- `--batch, -b`: Enable batch conversion mode
- `--format, -f`: Output format for batch conversion (jpg, jpeg, png, webp)
- `--extensions, -e`: Comma-separated list of file extensions to process in batch mode (default: jpg,jpeg,png,webp)

Examples:
```bash
# Convert single JPG to WebP
dttt convert input.jpg output.webp

# Convert PNG to JPG with 80% quality
dttt convert input.png output.jpg --quality 80

# Convert WebP to PNG
dttt convert input.webp output.png

# Batch convert all JPG and PNG files in a directory to WebP
dttt convert ./photos ./webp_photos --batch --format webp --extensions jpg,png

# Batch convert all supported images to JPG with 85% quality
dttt convert ./input ./output --batch --format jpg --quality 85
```

### rename

Rename files in bulk based on specified patterns.

```bash
dttt rename --pattern "prefix_###.jpg" --start 1 --directory ./images
```

Options:
- `--directory, -d`: Directory containing the files to rename (default: current directory)
- `--pattern, -p`: Pattern for renaming files. Use '###' as a placeholder for numeric sequence
- `--start, -s`: Start index for numeric sequence in the renaming pattern (default: 1)

### server

Start a simple HTTP server to serve files from a specified directory.

```bash
dttt server [directory]
```

Options:
- `--port, -p`: Port number for the HTTP server (default: 8080)

If no directory is provided, the current directory is used.

### chat

Start a chat server or connect to other peers.

```bash
# Start a chat server
dttt chat

# Connect to a chat server
dttt chat localhost:8080
```

Options:
- `--nickname, -n`: Nickname for the user

### env

Manage environment variables.

```bash
# List all environment variables
dttt env list

# Set an environment variable
dttt env set KEY VALUE

# Unset an environment variable
dttt env unset KEY
```

## Configuration

You can specify a configuration file using the `--config` flag. By default, the configuration is read from `$HOME/.dttt.yaml`.

## License

See the [LICENSE](LICENSE) file for details.