mirror of
https://github.com/oarkflow/mq.git
synced 2025-10-05 16:06:55 +08:00
112 lines
3.0 KiB
Go
112 lines
3.0 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/oarkflow/jet"
|
|
|
|
"github.com/oarkflow/mq/consts"
|
|
v2 "github.com/oarkflow/mq/dag/v2"
|
|
)
|
|
|
|
func Form(ctx context.Context, payload json.RawMessage) v2.Result {
|
|
bt, err := os.ReadFile("webroot/form.html")
|
|
if err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
parser := jet.NewWithMemory(jet.WithDelims("{{", "}}"))
|
|
rs, err := parser.ParseTemplate(string(bt), map[string]any{
|
|
"task_id": ctx.Value("task_id"),
|
|
})
|
|
if err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
ctx = context.WithValue(ctx, consts.ContentType, consts.TypeHtml)
|
|
data := map[string]any{
|
|
"html_content": rs,
|
|
}
|
|
bt, _ = json.Marshal(data)
|
|
return v2.Result{Payload: bt, Ctx: ctx}
|
|
}
|
|
|
|
func NodeA(ctx context.Context, payload json.RawMessage) v2.Result {
|
|
var data map[string]any
|
|
if err := json.Unmarshal(payload, &data); err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
data["allowed_voting"] = data["age"] == "18"
|
|
updatedPayload, _ := json.Marshal(data)
|
|
return v2.Result{Payload: updatedPayload, Ctx: ctx}
|
|
}
|
|
|
|
func NodeB(ctx context.Context, payload json.RawMessage) v2.Result {
|
|
var data map[string]any
|
|
if err := json.Unmarshal(payload, &data); err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
data["female_voter"] = data["gender"] == "female"
|
|
updatedPayload, _ := json.Marshal(data)
|
|
return v2.Result{Payload: updatedPayload, Ctx: ctx}
|
|
}
|
|
|
|
func NodeC(ctx context.Context, payload json.RawMessage) v2.Result {
|
|
var data map[string]any
|
|
if err := json.Unmarshal(payload, &data); err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
data["voted"] = true
|
|
updatedPayload, _ := json.Marshal(data)
|
|
return v2.Result{Payload: updatedPayload, Ctx: ctx}
|
|
}
|
|
|
|
func Result(ctx context.Context, payload json.RawMessage) v2.Result {
|
|
bt, err := os.ReadFile("webroot/result.html")
|
|
if err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
var data map[string]any
|
|
if payload != nil {
|
|
if err := json.Unmarshal(payload, &data); err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
}
|
|
if bt != nil {
|
|
parser := jet.NewWithMemory(jet.WithDelims("{{", "}}"))
|
|
rs, err := parser.ParseTemplate(string(bt), data)
|
|
if err != nil {
|
|
return v2.Result{Error: err, Ctx: ctx}
|
|
}
|
|
ctx = context.WithValue(ctx, consts.ContentType, consts.TypeHtml)
|
|
data := map[string]any{
|
|
"html_content": rs,
|
|
}
|
|
bt, _ := json.Marshal(data)
|
|
return v2.Result{Payload: bt, Ctx: ctx}
|
|
}
|
|
return v2.Result{Payload: payload, Ctx: ctx}
|
|
}
|
|
|
|
func notify(taskID string, result v2.Result) {
|
|
fmt.Printf("Final result for Task %s: %s\n", taskID, string(result.Payload))
|
|
}
|
|
|
|
func main() {
|
|
dag := v2.NewDAG(notify)
|
|
dag.AddNode(v2.Page, "Form", Form)
|
|
dag.AddNode(v2.Function, "NodeA", NodeA)
|
|
dag.AddNode(v2.Function, "NodeB", NodeB)
|
|
dag.AddNode(v2.Function, "NodeC", NodeC)
|
|
dag.AddNode(v2.Page, "Result", Result)
|
|
dag.AddEdge(v2.Simple, "Form", "NodeA")
|
|
dag.AddEdge(v2.Simple, "NodeA", "NodeB")
|
|
dag.AddEdge(v2.Simple, "NodeB", "NodeC")
|
|
dag.AddEdge(v2.Simple, "NodeC", "Result")
|
|
if dag.Error != nil {
|
|
panic(dag.Error)
|
|
}
|
|
dag.Start("0.0.0.0:8080")
|
|
}
|