Add JSON Schema validations (#61)

crates/tbdex/Cargo.toml

@@ -5,6 +5,7 @@ edition = "2021"
 homepage.workspace = true
 repository.workspace = true
 license-file.workspace = true
+build = "build.rs"
 
 [dependencies]
 base64 = "0.22.0"
@@ -20,4 +21,7 @@ serde_json = { workspace = true }
 thiserror = { workspace = true }
 type-safe-id = { version = "0.3.0", features = ["serde"] }
 uuid = "1.9.0"
-web5 = { workspace = true }
+web5 = { workspace = true }
+
+[build-dependencies]
+reqwest = { version = "0.12.5", features = ["blocking"] }

crates/tbdex/build.rs

@@ -0,0 +1,65 @@
+use std::fs;
+use std::io::{self, BufRead};
+use std::path::Path;
+
+fn write_json_schemas() -> Result<(), Box<dyn std::error::Error>> {
+    let commit_hash = "96a1a7164e8e0a608befa31b6cf0c9a4e5cc0f07";
+    let schemas = vec![
+      ("DEFINITIONS_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/definitions.json", commit_hash)),
+      ("RESOURCE_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/resource.schema.json", commit_hash)),
+      ("BALANCE_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/balance.schema.json", commit_hash)),
+      ("OFFERING_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/offering.schema.json", commit_hash)),
+      ("MESSAGE_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/message.schema.json", commit_hash)),
+      ("RFQ_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/rfq.schema.json", commit_hash)),
+      ("RFQ_PRIVATE_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/rfq-private.schema.json", commit_hash)),
+      ("QUOTE_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/quote.schema.json", commit_hash)),
+      ("ORDER_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/order.schema.json", commit_hash)),
+      ("ORDER_STATUS_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/orderstatus.schema.json", commit_hash)),
+      ("CLOSE_DATA_JSON_SCHEMA", format!("https://raw.githubusercontent.com/TBD54566975/tbdex/{}/hosted/json-schemas/close.schema.json", commit_hash)),
+  ];
+
+    let dest_path = Path::new("src/json_schemas").join("generated.rs");
+
+    // Check if the existing file contains the same commit hash
+    if let Ok(file) = fs::File::open(&dest_path) {
+        let reader = io::BufReader::new(file);
+        let mut lines = reader.lines();
+        let third_line = lines.nth(3); // Get the third line (index 2)
+
+        if let Some(Ok(line)) = third_line {
+            if line == format!("pub const GIT_COMMIT_HASH: &str = \"{}\";", commit_hash) {
+                // The commit hash matches, no need to re-fetch the schemas
+                println!("Schemas are up-to-date, skipping download.");
+                return Ok(());
+            }
+        }
+    }
+
+    let mut file_content = String::new();
+
+    // Add the commit hash to the top of the file
+    file_content.push_str("// THIS FILE IS AUTO-GENERATED BY build.rs\n");
+    file_content.push_str("#[warn(unused_imports)]\n");
+    file_content.push_str("#[allow(dead_code)]\n");
+    file_content.push_str(&format!(
+        "pub const GIT_COMMIT_HASH: &str = \"{}\";\n",
+        commit_hash
+    ));
+
+    for (name, url) in schemas {
+        let response = reqwest::blocking::get(&url)?;
+        let mut schema = response.text()?;
+        schema = schema.replace('#', "\\#");
+        file_content.push_str(&format!("pub const {}: &str = r#\"{}\"#;\n", name, schema));
+    }
+
+    fs::write(dest_path, file_content)?;
+
+    Ok(())
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    write_json_schemas()?;
+
+    Ok(())
+}