# Opal task manager
This is the counterpart to jade, where we track tasks.
## Syntax
`opal [<filter>] [<command>] [<modifier>]`

### <filter>
Filters the Task to run a command on. Adressing a set of subtasks.
`opal +home -garden status:pending list` - lists all tasks with the +home tag and status pending, but excludes +garden tags. This is a compound filter with implicit AND.
### <command>
`add` - Creates a new task
`done` - Completes a task
`list` - Lists task
`count` - Counts number of tasks

### <modifier>
Modifies atributes of tasks.

## Task
A task has multiple atributes:
`status` - pending, completed, deleted, recurring
`description` - One line summary
`start` - the most recent time at which this task was started (a task with no start key is not active) 
`end` - if present, the time at which this task was completed or deleted
`due` - Use a due date to specify the exact date by which a task must be completed.`created` - Time task created
`schedueled` - represents the earliest opportunity to work on a task. If a task has a scheduled date, then once that date passes, the task is considered ready. Tasks with no scheduled is considered always ready.
`wait` - a wait date for a task, which has the effect of hiding the task from you until that date. 
`until` - the point at which to mark task as deleted. an expiration date.

## Recurrence
A task can be recurring. Then we have a template task and instances of that task. 
`opal add Change sheets due:sun recur:1w` - A task to be done every sunday.
A recurring task is given a status of recurring which hides it from view. The recurring task you create is called the template task, from which recurring tasks instances are created. So the template remains hidden, and the recurring instances that spawn from it are the tasks that you will see and complete.

## Storage

**Configuration:** `~/.config/opal/opal.yml` (or `$XDG_CONFIG_HOME/opal/opal.yml`)  
**Database:** `~/.local/share/opal/opal.db` (or `$XDG_DATA_HOME/opal/opal.db`)

### Customizing Storage Locations

Override default locations using environment variables or command-line flags:

**Environment Variables:**
- `OPAL_CONFIG_DIR` - Override config directory location
- `OPAL_DATA_DIR` - Override data directory location  
- `OPAL_DB_PATH` - Override database file path specifically
- `XDG_CONFIG_HOME` - Standard XDG config directory (defaults to `~/.config`)
- `XDG_DATA_HOME` - Standard XDG data directory (defaults to `~/.local/share`)

**Command-Line Flags:**
```bash
opal --config-dir /custom/config --data-dir /custom/data list
```

**Production Server Setup:**
```bash
# Use system-wide paths for production
OPAL_CONFIG_DIR=/etc/opal OPAL_DATA_DIR=/var/lib/opal opal server start
```

### Migrating from Old Paths

If you previously used `~/.config/jade/`, you can migrate your data:

```bash
# Backup first (recommended)
cp -r ~/.config/jade ~/.config/jade.backup

# Create new directories
mkdir -p ~/.config/opal ~/.local/share/opal

# Copy config
cp ~/.config/jade/opal.yml ~/.config/opal/

# Move database and sync data
mv ~/.config/jade/opal.db ~/.local/share/opal/
mv ~/.config/jade/sync_*.* ~/.local/share/opal/ 2>/dev/null || true

# Test that everything works
opal list

# Remove old directory after confirming it works
rm -rf ~/.config/jade
```

## Server & Sync

Opal-task includes a REST API server for syncing tasks across multiple devices.

### Quick Start

**Server Setup:**
```bash
# Build
go build -o opal main.go

# Generate API key
./opal server keygen --name "My Device" --db /var/lib/opal/opal.db

# Start server
./opal server start --addr :8080 --db /var/lib/opal/opal.db
```

**Client Setup:**
```bash
# Configure sync
opal sync init --url https://opal.yourdomain.com --key oak_abc123...

# Sync tasks
opal sync now

# Initial merge (for existing local database)
opal sync merge
```

### Sync Commands

- `opal sync init` - Configure sync with server
- `opal sync status` - Show sync configuration and status
- `opal sync now` - Bidirectional sync
- `opal sync up` - Push local changes to server
- `opal sync down` - Pull server changes from server
- `opal sync merge` - Initial database merge (for first-time sync)
- `opal sync log` - View conflict resolution log

### Features

- **Offline support** - Queue changes when server is unreachable
- **Conflict resolution** - Automatic conflict handling (last-write-wins by default)
- **Change tracking** - Full change log with configurable retention
- **API key authentication** - Secure bcrypt-hashed keys
- **Household sharing** - Single shared database for all family members

See [srv/README.md](srv/README.md) for detailed server deployment instructions.