demo.py

from iris_global import GlobalReference

# Create a reference to a global
team = GlobalReference("^demo")
team.kill()  # Clear any existing data

# Different ways to set values
team.set((), "Baseball")                    # Set root node
team["name"] = "Boston Red Sox"             # Dictionary-style assignment
team.set(("players", "1"), "Babe Ruth")     # Tuple subscript
team.set(["players", "2"], "Cy Young")      # List subscript
team["players", "3"] = "Ted Williams"       # Multiple subscripts

# Different ways to get values
print(team.get(()))                         # Get root value: "Baseball"
print(team["name"])                         # Dictionary-style access
print(team.get(("players", "1")))          # Using get() method
print(team["players"]["2"])                # Nested dictionary-style

# Check if nodes exist
print(("players", "1") in team)            # True
print("nonexistent" in team)               # False

# Delete nodes
del team["players", "3"]                   # Delete using del
team.kill(("players", "2"))               # Delete using kill()

# Iteration Examples
# 1. Iterate through all nodes and values
for key, value in team.items():
    print(f"Node {key}: {value}")          # Shows all nodes with values

# Output :
# Node (): Baseball
# Node ('name',): Boston Red Sox
# Node ('players', '1'): Babe Ruth

# 2. Iterate through direct children only
for key in team.keys(children_only=True):
    print(f"Direct child: {key}")          # Shows only root level nodes

# Output:
# Direct child: ()
# Direct child: ('name',)

# 3. Custom iteration with subscripts
for sub in team.subscripts(("players",), children_only=True):
    print(f"Player: {team.get(sub)}")      # Shows only players

# Output:
# Player: Babe Ruth

# Count direct children
print(len(team))                           # Number of root level nodes

# Output:
# 3

# Display global structure
print(team.zw())                           # Show ZWRITE format

# Output:
# ^demo="Baseball"
# ^demo("name")="Boston Red Sox"
# ^demo("players","1")="Babe Ruth"

# Display this global in a dictionary format
print(team.to_dict())

# Output:
# {
#   None: 'Baseball',
#  'name': 'Boston Red Sox',
#  'players': {
#       '1': 'Babe Ruth'
#       }
# }