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specs/model/flow.v

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+module model
+
+// what get's executed by an actor and needs to be tracked as a whole, can be represented as a DAG graph
+// this is the high level representation of a workflow to execute on work, its fully decentralized and distributed
+// only the actor who created the flow can modify it and holds it in DB
+// stored in the context db at flow:<id> (flow is hset)
+@[heap]
+pub struct Flow {
+pub mut:
+	id         u32               // this job id is given by the actor who called for it
+	caller_id  u32               // is the actor which called for this job
+	context_id u32               // each job is executed in a context
+	jobs       []u32             // links to all jobs which make up this flow, this can be dynamically modified
+	env_vars   map[string]string // they are copied to every job done
+	result     map[string]string // the result of the flow
+	created_at u32               // epoch
+	updated_at u32               // epoch
+	status     FlowStatus
+}
+
+pub fn (self Flow) redis_key() string {
+	return 'flow:${self.id}'
+}
+
+// FlowStatus represents the status of a flow
+pub enum FlowStatus {
+	dispatched
+	started
+	error
+	finished
+}
+
+// str returns the string representation of FlowStatus
+pub fn (self FlowStatus) str() string {
+	return match self {
+		.dispatched { 'dispatched' }
+		.started { 'started' }
+		.error { 'error' }
+		.finished { 'finished' }
+	}
+}