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from langgraph.graph import START, END, StateGraph
from blogGenerator.state.state import State
from blogGenerator.nodes.route_deciding_node import RouteDecidingNode
from blogGenerator.nodes.yt_transcript_node import YTTranscriptNode
from blogGenerator.nodes.content_generator_node import ContentGeneratorNode
class GraphBuilder:
def __init__(self, model):
self.llm = model
self.graph_builder = StateGraph(State)
def blog_generator_build_graph(self):
"""
Build a blog generation graph
"""
# print("Build a blog generation graph.......")
try:
self.route_deciding_node = RouteDecidingNode(self.llm)
self.yt_transcript_node = YTTranscriptNode()
self.content_generator_node = ContentGeneratorNode(self.llm)
self.graph_builder.add_node("Router", self.route_deciding_node.process)
self.graph_builder.add_node(
"YT Transcript", self.yt_transcript_node.process
)
self.graph_builder.add_node(
"Generate Blog", self.content_generator_node.process
)
self.graph_builder.add_edge(START, "Router")
self.graph_builder.add_conditional_edges(
"Router",
self.route_deciding_node.route_decision,
{"youtube": "YT Transcript", "topic": "Generate Blog"},
)
self.graph_builder.add_edge("YT Transcript", "Generate Blog")
self.graph_builder.add_edge("Generate Blog", END)
except Exception as e:
print(f"Error : {e}")
def setup_graph(self):
self.blog_generator_build_graph()
return self.graph_builder.compile()
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