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package taskqueue
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/hibiken/asynq"
"github.com/nsfisis/iosdc-japan-2024-albatross/backend/db"
)
type ExecProcessor struct {
q *db.Queries
c chan string
}
func NewExecProcessor(q *db.Queries, c chan string) *ExecProcessor {
return &ExecProcessor{
q: q,
c: c,
}
}
func (p *ExecProcessor) ProcessTask(ctx context.Context, t *asynq.Task) error {
var payload TaskExecPlayload
if err := json.Unmarshal(t.Payload(), &payload); err != nil {
return fmt.Errorf("json.Unmarshal failed: %v: %w", err, asynq.SkipRetry)
}
// TODO: upsert
// Create submission record.
submissionID, err := p.q.CreateSubmission(ctx, db.CreateSubmissionParams{
GameID: int32(payload.GameID),
UserID: int32(payload.UserID),
Code: payload.Code,
CodeSize: int32(len(payload.Code)), // TODO: exclude whitespaces.
})
if err != nil {
return fmt.Errorf("CreateSubmission failed: %v", err)
}
{
type swiftcRequestData struct {
MaxDuration int `json:"max_duration_ms"`
Code string `json:"code"`
}
type swiftcResponseData struct {
Result string `json:"result"`
Stdout string `json:"stdout"`
Stderr string `json:"stderr"`
}
reqData := swiftcRequestData{
MaxDuration: 5000,
Code: payload.Code,
}
reqJson, err := json.Marshal(reqData)
if err != nil {
return fmt.Errorf("json.Marshal failed: %v", err)
}
res, err := http.Post("http://worker:80/api/swiftc", "application/json", bytes.NewBuffer(reqJson))
if err != nil {
return fmt.Errorf("http.Post failed: %v", err)
}
resData := swiftcResponseData{}
if err := json.NewDecoder(res.Body).Decode(&resData); err != nil {
return fmt.Errorf("json.Decode failed: %v", err)
}
if resData.Result != "success" {
err := p.q.CreateTestcaseExecution(ctx, db.CreateTestcaseExecutionParams{
SubmissionID: submissionID,
TestcaseID: nil,
Status: "compile_error",
Stdout: resData.Stdout,
Stderr: resData.Stderr,
})
if err != nil {
return fmt.Errorf("CreateTestcaseExecution failed: %v", err)
}
p.c <- "compile_error"
return fmt.Errorf("swiftc failed: %v", resData.Stderr)
}
}
{
type wasmcRequestData struct {
MaxDuration int `json:"max_duration_ms"`
Code string `json:"code"`
}
type wasmcResponseData struct {
Result string `json:"result"`
Stdout string `json:"stdout"`
Stderr string `json:"stderr"`
}
reqData := wasmcRequestData{
MaxDuration: 5000,
Code: payload.Code,
}
reqJson, err := json.Marshal(reqData)
if err != nil {
return fmt.Errorf("json.Marshal failed: %v", err)
}
res, err := http.Post("http://worker:80/api/wasmc", "application/json", bytes.NewBuffer(reqJson))
if err != nil {
return fmt.Errorf("http.Post failed: %v", err)
}
resData := wasmcResponseData{}
if err := json.NewDecoder(res.Body).Decode(&resData); err != nil {
return fmt.Errorf("json.Decode failed: %v", err)
}
if resData.Result != "success" {
err := p.q.CreateTestcaseExecution(ctx, db.CreateTestcaseExecutionParams{
SubmissionID: submissionID,
TestcaseID: nil,
Status: "compile_error",
Stdout: resData.Stdout,
Stderr: resData.Stderr,
})
if err != nil {
return fmt.Errorf("CreateTestcaseExecution failed: %v", err)
}
p.c <- "compile_error"
return fmt.Errorf("wasmc failed: %v", resData.Stderr)
}
}
testcases, err := p.q.ListTestcasesByGameID(ctx, int32(payload.GameID))
if err != nil {
return fmt.Errorf("ListTestcasesByGameID failed: %v", err)
}
for _, testcase := range testcases {
type testrunRequestData struct {
MaxDuration int `json:"max_duration_ms"`
Code string `json:"code"`
Stdin string `json:"stdin"`
}
type testrunResponseData struct {
Result string `json:"result"`
Stdout string `json:"stdout"`
Stderr string `json:"stderr"`
}
reqData := testrunRequestData{
MaxDuration: 5000,
Code: payload.Code,
Stdin: testcase.Stdin,
}
reqJson, err := json.Marshal(reqData)
if err != nil {
return fmt.Errorf("json.Marshal failed: %v", err)
}
res, err := http.Post("http://worker:80/api/testrun", "application/json", bytes.NewBuffer(reqJson))
if err != nil {
return fmt.Errorf("http.Post failed: %v", err)
}
resData := testrunResponseData{}
if err := json.NewDecoder(res.Body).Decode(&resData); err != nil {
return fmt.Errorf("json.Decode failed: %v", err)
}
if resData.Result != "success" {
err := p.q.CreateTestcaseExecution(ctx, db.CreateTestcaseExecutionParams{
SubmissionID: submissionID,
TestcaseID: &testcase.TestcaseID,
Status: resData.Result,
Stdout: resData.Stdout,
Stderr: resData.Stderr,
})
if err != nil {
return fmt.Errorf("CreateTestcaseExecution failed: %v", err)
}
p.c <- resData.Result
return fmt.Errorf("testrun failed: %v", resData.Stderr)
}
if !isTestcaseExecutionCorrect(testcase.Stdout, resData.Stdout) {
err := p.q.CreateTestcaseExecution(ctx, db.CreateTestcaseExecutionParams{
SubmissionID: submissionID,
TestcaseID: &testcase.TestcaseID,
Status: "wrong_answer",
Stdout: resData.Stdout,
Stderr: resData.Stderr,
})
if err != nil {
return fmt.Errorf("CreateTestcaseExecution failed: %v", err)
}
p.c <- "wrong_answer"
return fmt.Errorf("testrun failed: %v", resData.Stdout)
}
}
p.c <- "success"
return nil
}
func isTestcaseExecutionCorrect(expectedStdout, actualStdout string) bool {
expectedStdout = strings.TrimSpace(expectedStdout)
actualStdout = strings.TrimSpace(actualStdout)
return actualStdout == expectedStdout
}
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