From 3189dc23f2abf2060f591219e8256301e7c41aed Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Fri, 20 Sep 2024 16:11:56 +0200
Subject: Generate mux json

---
 src/config.rs | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 97 insertions(+), 1 deletion(-)

(limited to 'src/config.rs')

diff --git a/src/config.rs b/src/config.rs
index 54f94dd..64f3c09 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,11 +1,13 @@
-use std::fs;
+use std::{collections::HashMap, fs};
 use anyhow::Context;
 use serde::{Deserialize, Serialize};
+use serde_json::json;
 
 type Protection = u8;
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct Service {
+    pub unique_id: String,
     pub sid: u32,
     pub ecc: u8,
     pub label: String,
@@ -23,6 +25,30 @@ impl Service {
     pub fn ecc_hex(&self) -> String {
         format!("{:02X}", self.ecc)
     }
+
+    pub fn dump_to_service_json(&self) -> serde_json::Value {
+        json!({
+            "id": self.sid,
+            "ecc": self.ecc,
+            "label": self.label,
+            "shortlabel": self.shortlabel,
+        })
+    }
+
+    pub fn dump_to_subchannel_json(&self, id: u32) -> serde_json::Value {
+        json!({
+            "type": "dabplus",
+            "bitrate": self.bitrate,
+            "id": id,
+            "protection": self.protection,
+
+            "inputproto": "edi",
+            "inputuri": format!("tcp://127.0.0.1:{}", self.input_port),
+            "buffer-management": "prebuffering",
+            "buffer": 40,
+            "prebuffering": 20
+        })
+    }
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
@@ -62,6 +88,7 @@ impl Default for Config {
             output_edi_port: 8951,
             services: vec![
                Service {
+                   unique_id: "nothing".to_owned(),
                    sid: 0x4DAA,
                    ecc: 0xE1,
                    label: "nothing".to_owned(),
@@ -92,4 +119,73 @@ impl Config {
         fs::write(CONFIGFILE, toml::to_string_pretty(&self)?)
             .context("writing config file")
     }
+
+    pub fn dump_to_json(&self) -> serde_json::Value {
+        let now = chrono::Utc::now().to_rfc3339();
+
+        let mut services = HashMap::new();
+        for s in &self.services {
+            let uid = format!("srv-{}", s.unique_id);
+            services.insert(uid, s.dump_to_service_json());
+        }
+
+        let mut subchannels = HashMap::new();
+        let mut id = 0;
+        for s in &self.services {
+            id += 1;
+            let uid = format!("sub-{}", s.unique_id);
+            subchannels.insert(uid, s.dump_to_subchannel_json(id));
+        }
+
+        let mut components = HashMap::new();
+        for s in &self.services {
+            components.insert(
+                format!("comp-{}", s.unique_id),
+                json!({
+                    "service": format!("srv-{}", s.unique_id),
+                    "subchannel": format!("sub-{}", s.unique_id),
+                    "user-applications": {
+                        "userapp": "slideshow"
+                    }
+                }));
+        }
+
+        json!({
+            "_comment": format!("Generated at {} by odr-dabmux-gui", now),
+            "general": {
+                "dabmode": 1,
+                "nbframes": 0,
+                "syslog": false,
+                "tist": self.tist,
+                "tist_offset": self.tist_offset,
+                "managementport": 12720
+            },
+            "remotecontrol": {
+                "telnetport": 12721,
+                "zmqendpoint": "tcp://lo:12722"
+            },
+            "ensemble": {
+                "id": self.ensemble_id,
+                "ecc": self.ensemble_ecc,
+                "local-time-offset": "auto",
+                "reconfig-counter": "hash",
+                "label": self.ensemble_label,
+                "shortlabel": self.ensemble_shortlabel
+            },
+            "services": services,
+            "subchannels": subchannels,
+            "components": components,
+            "outputs": {
+                "throttle": "simul://",
+                "edi": {
+                    "destinations": {
+                        "example_tcp": {
+                            "protocol": "tcp",
+                            "listenport": self.output_edi_port
+                        }
+                    }
+                }
+            }
+        })
+    }
 }
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