1 files changed, 43 insertions, 0 deletions

diff --git a/backend/parser/parser.go b/backend/parser/parser.go
new file mode 100644
index 0000000..562b8c0
--- /dev/null
+++ b/backend/parser/parser.go
@@ -0,0 +1,43 @@
+package parser
+
+import (
+        "bufio"
+        "fmt"
+        "log"
+        "os/exec"
+        "strconv"
+        "strings"
+)
+
+func ProcessDemo(demoPath string) (int, int, error) {
+        cmd := exec.Command("bash", "-c", fmt.Sprintf(`echo "FEXBash" && ./backend/parser/parser %s`, demoPath))
+        stdout, err := cmd.StdoutPipe()
+        if err != nil {
+                log.Println(err)
+                return 0, 0, err
+        }
+        cmd.Start()
+        scanner := bufio.NewScanner(stdout)
+        var cmTicks, portalCount int
+        for scanner.Scan() {
+                line := scanner.Text()
+                if strings.Contains(line, "CM ticks") {
+                        cmTicksStr := strings.TrimSpace(strings.Split(line, ":")[1])
+                        cmTicks, err = strconv.Atoi(cmTicksStr)
+                        if err != nil {
+                                return 0, 0, err
+                        }
+                }
+                if strings.Contains(line, "Portal count") {
+                        portalCountStr := strings.TrimSpace(strings.Split(line, ":")[1])
+                        portalCount, err = strconv.Atoi(portalCountStr)
+                        if err != nil {
+                                return 0, 0, err
+                        }
+                }
+        }
+        cmd.Wait()
+        // We don't check for error in wait, since FEXBash always gives segmentation fault
+        // Wanted output is retrieved, so it's okay (i think)
+        return portalCount, cmTicks, nil
+}