ok

.env.example

@@ -0,0 +1,3 @@
+ANTARES_USERCODE=given_usercode
+ANTARES_PASSWORD=given_password
+OUT=out

.github/copilot-instructions.md

@@ -0,0 +1,72 @@
+# Copilot Instructions
+
+## Build, test, and lint
+
+- `cargo build`
+- `cargo run` - requires a local `.env` file with `ANTARES_USERCODE` and `ANTARES_PASSWORD`
+- `cargo test`
+- `cargo test <test_name>` to run one test
+- `cargo test -- --list` to discover test names; the repository currently has no defined tests
+- `cargo fmt --all -- --check`
+- `cargo clippy --all-targets -- -D warnings`
+
+## High-level architecture
+
+This is a modular single-binary Rust utility that fetches Antares B2B product data and exports it to Excel. The codebase is organized into separate concerns:
+
+**Modules:**
+- `src/main.rs` - orchestrates the pipeline: credential loading, API calls, JSON deserialization, and delegating to tools
+- `src/api/client.rs` - handles URL construction for the Antares B2B API
+- `src/tools/excel.rs` - implements Excel export with selective field mapping and business rule validation
+- `src/tools/logger.rs` - provides dual output (terminal + file) logging to `log/{YYYY-MM-DD}.log`
+- `src/template/antares.rs` - serde models with `#[serde(rename_all = "PascalCase")]`; top-level is `Antares` alias for `Vec<AntaresItem>`
+
+**Pipeline:**
+1. Initialize logger (creates `log/` dir if needed)
+2. Load credentials from `.env` via `dotenv`
+3. Build Antares API URL using `src/api/client::make_url()`
+4. Fetch with 300-second timeout via blocking `reqwest::blocking::Client`
+5. Deserialize into typed `Antares` structs; if schema mismatch, preserve response as JSON/text
+6. Write `antares.json` with pretty formatting
+7. Export filtered rows to `out/antares_export.xlsx` via `src/tools/excel::export_to_excel()`
+8. Log success/failure at each step
+
+**Logging:**
+- All significant events logged to terminal and `log/{YYYY-MM-DD}.log`
+- Specialized methods: `log_api_success()`, `log_api_failure()`, `log_export_success()`, `log_export_failure()`
+- Directory created automatically if missing; logs appended daily by date
+
+## Key conventions
+
+**Credentials:**
+- Load only via `ANTARES_USERCODE` and `ANTARES_PASSWORD` env vars from `.env`
+- `.env.example` documents required variables
+- No hardcoded credentials; missing vars cause graceful failure with instructions
+
+**Artifacts:**
+- `antares.json` - saved at repo root after each successful API fetch
+- `out/antares_export.xlsx` - Excel export; `out/` directory created auto if missing
+- `log/{YYYY-MM-DD}.log` - daily logs; `log/` directory created auto if missing
+- `.gitignore` excludes: `*.json`, `*.xlsx`, `.env`, `/out`, `/log`
+
+**Excel export (`src/tools/excel.rs`):**
+- Not a generic dump; maps selected Antares fields to fixed column layout per business rules
+- Rows skipped if `cikkszam` empty OR both name fields (`cikk_megnevezes_rovid`, `cikk_megnevezes`) empty
+- `BESZCIKKNEV` prefers `cikk_megnevezes_rovid`, falls back to `cikk_megnevezes`
+- `EGYSEGAR` prefers `netto_kisker_ar`; if `0.0`, searches `cikk_jellemzok` for entry with `jellemzo_nev == "Alap ár"`
+- Headers are bold-formatted
+
+**API integration:**
+- When extending the schema, add/modify structs in `src/template/antares.rs` first
+- Avoid ad hoc JSON traversal in `main.rs`; keep deserialization flow centered on typed structs
+- Preserve response on schema mismatch (save as JSON or text) unless deliberately changing error handling
+
+**Modularity:**
+- Extend by adding new files to `src/tools/` (e.g., `csv.rs`, `database.rs`)
+- Each tool should be self-contained and exposed via `src/tools/mod.rs`
+- HTTP client logic stays in `src/api/`; reuse `make_request()` from `main.rs` for consistency
+
+**Blocking HTTP:**
+- Uses `reqwest::blocking::Client` with 300-second timeout
+- No async runtime; synchronous flow is intentional
+- Only change to async if architecture overhaul is deliberate

.gitignore

@@ -1,3 +1,7 @@
+.DS_Store
 /target
 *.json
 *.xlsx
+.env
+/out
+/log

Cargo.lock

@@ -17,10 +17,22 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "antares_get_data"
 version = "0.1.0"
 dependencies = [
+ "chrono",
+ "dotenv",
+ "log",
  "reqwest",
  "rust_xlsxwriter",
  "serde",
@@ -39,6 +51,12 @@ version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
 
+[[package]]
+name = "autocfg"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
+
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -85,6 +103,19 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
+[[package]]
+name = "chrono"
+version = "0.4.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c673075a2e0e5f4a1dde27ce9dee1ea4558c7ffe648f576438a20ca1d2acc4b0"
+dependencies = [
+ "iana-time-zone",
+ "js-sys",
+ "num-traits",
+ "wasm-bindgen",
+ "windows-link",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -137,6 +168,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dotenv"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.35"
@@ -449,6 +486,30 @@ dependencies = [
  "windows-registry",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e31bc9ad994ba00e440a8aa5c9ef0ec67d5cb5e5cb0cc7f8b744a35b389cc470"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "log",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "icu_collections"
 version = "2.2.0"
@@ -690,6 +751,15 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.21.4"
@@ -1460,6 +1530,41 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "windows-core"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.59.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "windows-link"
 version = "0.2.1"

Cargo.toml

@@ -8,4 +8,7 @@ reqwest = { version = "0.12", features = ["blocking"] }
 serde_json = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 rust_xlsxwriter = "0.66"
+dotenv = "0.15"
+chrono = "0.4"
+log = "0.4"
 

src/api/client.rs

@@ -0,0 +1,6 @@
+pub fn make_url(base: &str, usercode: &str, password: &str, cikkszam: &str) -> String {
+    format!(
+        "{}&USERCODE={}&PASSWORD={}&PIN=&cikkszam={}",
+        base, usercode, password, cikkszam
+    )
+}

src/api/mod.rs

@@ -0,0 +1,3 @@
+pub mod client;
+
+pub use client::make_url;

src/main.rs

@@ -1,102 +1,52 @@
+use reqwest::blocking::Client;
 use std::error::Error;
 use std::fs;
 use std::time::Duration;
-use rust_xlsxwriter::*;
 
+mod api;
 mod template;
+mod tools;
+
+use api::make_url;
 use template::antares::Antares;
+use tools::{Logger, export_to_excel};
 
-fn make_url(base: &str, usercode: &str, password: &str, cikkszam: &str) -> String {
+fn make_request(url: &str) -> Result<String, Box<dyn Error>> {
-    format!(
+    let client = Client::builder()
-        "{}&USERCODE={}&PASSWORD={}&PIN=&cikkszam={}",
+        .timeout(Duration::from_secs(300))
-        base, usercode, password, cikkszam
+        .build()?;
-    )
+    Ok(client.get(url).send()?.text()?)
-}
-
-fn export_to_excel(items: &Antares, filename: &str) -> Result<(), Box<dyn Error>> {
-    let mut workbook = Workbook::new();
-    let sheet = workbook.add_worksheet();
-    
-    let header_format = Format::new().set_bold();
-    
-    // Write headers
-    sheet.write_string_with_format(0, 0, "BESZCIKKSZAM", &header_format)?;
-    sheet.write_string_with_format(0, 1, "GYCIKKSZAM", &header_format)?;
-    sheet.write_string_with_format(0, 2, "BESZCIKKNEV", &header_format)?;
-    sheet.write_string_with_format(0, 3, "GYARTO", &header_format)?;
-    sheet.write_string_with_format(0, 4, "CIKKAZON", &header_format)?;
-    sheet.write_string_with_format(0, 5, "KESZLET", &header_format)?;
-    sheet.write_string_with_format(0, 6, "ME", &header_format)?;
-    sheet.write_string_with_format(0, 7, "EGYSEGAR", &header_format)?;
-
-    let mut row = 1u32;
-    for item in items {
-        // Skip if BESZCIKKSZAM is empty
-        let cikkszam = match &item.cikkszam {
-            Some(cs) if !cs.is_empty() => cs.clone(),
-            _ => continue,
-        };
-
-        // BESZCIKKNEV: cikk_megnevezes_rovid or cikk_megnevezes
-        let megnevezes = item
-            .cikk_megnevezes_rovid
-            .clone()
-            .or_else(|| item.cikk_megnevezes.clone())
-            .unwrap_or_default();
-        
-        // Skip if BESZCIKKNEV is empty
-        if megnevezes.is_empty() {
-            continue;
-        }
-
-        // EGYSEGAR: netto_kisker_ar or find in cikk_jellemzok where jellemzo_nev = "Alap ár"
-        let mut unit_price = item.netto_kisker_ar.unwrap_or(0.0);
-        if unit_price == 0.0 {
-            if let Some(ref jellemzok) = item.cikk_jellemzok {
-                for jellemzo in jellemzok {
-                    if let Some(ref nev) = jellemzo.jellemzo_nev {
-                        if nev == "Alap ár" {
-                            if let Some(ref ertek) = jellemzo.jellemzo_ertek {
-                                unit_price = ertek.parse().unwrap_or(0.0);
-                                break;
-                            }
-                        }
-                    }
-                }
-            }
-        }
-
-        // Write row data
-        sheet.write_string(row, 0, &cikkszam)?;
-        sheet.write_string(row, 1, &cikkszam)?;
-        sheet.write_string(row, 2, &megnevezes)?;
-        sheet.write_string(row, 3, "EGYEB")?;
-        sheet.write_string(row, 4, item.vonalkod.as_deref().unwrap_or(""))?;
-        sheet.write_number(row, 5, item.szabad_keszlet.unwrap_or(0) as f64)?;
-        sheet.write_string(row, 6, item.mennyisegi_egyseg_kod.as_deref().unwrap_or(""))?;
-        sheet.write_number(row, 7, unit_price)?;
-
-        row += 1;
-    }
-
-    workbook.save(filename)?;
-    println!("Excel file '{}' created with {} rows", filename, row - 1);
-    Ok(())
 }
 
 fn main() -> Result<(), Box<dyn Error>> {
+    let logger = Logger::init()?;
+    logger.log_info("Starting Antares data export");
+
+    dotenv::dotenv().ok();
+
+    let usercode = std::env::var("ANTARES_USERCODE")
+        .map_err(|_| "Missing environment variable: ANTARES_USERCODE. Create a .env file with ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+    let password = std::env::var("ANTARES_PASSWORD")
+        .map_err(|_| "Missing environment variable: ANTARES_PASSWORD. Create a .env file with ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+    let out_path = std::env::var("OUT")
+        .map_err(|_| "Missing environment variable: OUT. Create a .env file with ANTARES_USERCODE, ANTARES_PASSWORD, and OUT. See .env.example for reference.")?;
+
     // Separate values
     let base = "https://b2b.antares.hu/I4stechproductionWebInt/IntAntaresWebCikkDataService.svc/webhttps/Get_CikkInfokWeb?SCHEMA=ANTARESINT";
-    let usercode = "orinkkft";
-    let password = "8E7DCB55F3B4ECC52D0451A1F8D851D0EF2193FCE4B83E528C18A8F68F8F2658EFCF2EA08563EC702A1C701934C3FBF5F6880BE894A16387326C7180A9A4C361";
     let cikkszam = ""; // supply a value if needed
 
-    let url = make_url(base, usercode, password, cikkszam);
+    let url = make_url(base, &usercode, &password, cikkszam);
 
-    let client = reqwest::blocking::Client::builder()
+    let response = match make_request(&url) {
-        .timeout(Duration::from_secs(300))
+        Ok(resp) => {
-        .build()?;
+            logger.log_info("API request sent successfully");
-    let response = client.get(&url).send()?.text()?;
+            resp
+        }
+        Err(e) => {
+            logger.log_api_failure(&e.to_string());
+            return Err(e);
+        }
+    };
 
     // Try to deserialize into strongly-typed `Antares` list.
     let items: Antares = match serde_json::from_str::<Antares>(&response) {
@@ -104,7 +54,7 @@ fn main() -> Result<(), Box<dyn Error>> {
             // Re-serialize via the structs to ensure consistent formatting
             let pretty = serde_json::to_string_pretty(&items)?;
             fs::write("antares.json", pretty)?;
-            println!("Parsed {} items and saved to antares.json", items.len());
+            logger.log_api_success(items.len());
             items
         }
         Err(_) => {
@@ -112,28 +62,26 @@ fn main() -> Result<(), Box<dyn Error>> {
             if let Ok(json_val) = serde_json::from_str::<serde_json::Value>(&response) {
                 let pretty = serde_json::to_string_pretty(&json_val)?;
                 fs::write("antares.json", pretty)?;
-                eprintln!(
+                logger.log_info("Response saved as JSON (schema mismatch)");
-                    "Warning: response didn't match expected struct but was valid JSON; saved pretty JSON to antares.json"
-                );
             } else {
                 fs::write("antares.json", &response)?;
-                eprintln!(
+                logger.log_info("Response saved as raw text (not valid JSON)");
-                    "Warning: response is not valid JSON; saved raw response to antares.json"
-                );
             }
             Vec::new()
         }
     };
 
     // Export to Excel
-    export_to_excel(&items, "antares_export.xlsx")?;
+    match export_to_excel(&items, &out_path) {
-
+        Ok(_) => {
-    // Example: print first item's Cikkszam if available
+            logger.log_export_success(&out_path, items.len());
-    if let Some(first) = items.get(0) {
+        }
-        if let Some(ref cs) = first.cikkszam {
+        Err(e) => {
-            println!("First item Cikkszam: {}", cs);
+            logger.log_export_failure(&e.to_string());
+            return Err(e);
         }
     }
 
+    logger.log_info("Export process completed successfully");
     Ok(())
 }

src/tools/excel.rs

@@ -0,0 +1,107 @@
+use std::error::Error;
+use std::fs;
+use std::path::{Path, PathBuf};
+use rust_xlsxwriter::*;
+use crate::template::antares::Antares;
+
+fn resolve_excel_path(path_str: &str) -> Result<PathBuf, Box<dyn Error>> {
+    let path = Path::new(path_str);
+
+    // If path ends with .xlsx, treat it as a file path
+    if path_str.ends_with(".xlsx") {
+        // Create parent directories if needed
+        if let Some(parent) = path.parent() {
+            if !parent.as_os_str().is_empty() {
+                fs::create_dir_all(parent)?;
+            }
+        }
+        return Ok(path.to_path_buf());
+    }
+
+    // If path has an extension but it's not .xlsx, error out
+    if path.extension().is_some() {
+        return Err(format!(
+            "Invalid file extension. Expected .xlsx, got: {}",
+            path_str
+        )
+        .into());
+    }
+
+    // Otherwise, treat as directory and create antares.xlsx inside
+    fs::create_dir_all(path)?;
+    Ok(path.join("antares.xlsx"))
+}
+
+pub fn export_to_excel(items: &Antares, path_str: &str) -> Result<(), Box<dyn Error>> {
+    let output_path = resolve_excel_path(path_str)?;
+    
+    let mut workbook = Workbook::new();
+    let sheet = workbook.add_worksheet();
+    
+    let header_format = Format::new().set_bold();
+    
+    // Write headers
+    sheet.write_string_with_format(0, 0, "BESZCIKKSZAM", &header_format)?;
+    sheet.write_string_with_format(0, 1, "GYCIKKSZAM", &header_format)?;
+    sheet.write_string_with_format(0, 2, "BESZCIKKNEV", &header_format)?;
+    sheet.write_string_with_format(0, 3, "GYARTO", &header_format)?;
+    sheet.write_string_with_format(0, 4, "CIKKAZON", &header_format)?;
+    sheet.write_string_with_format(0, 5, "KESZLET", &header_format)?;
+    sheet.write_string_with_format(0, 6, "ME", &header_format)?;
+    sheet.write_string_with_format(0, 7, "EGYSEGAR", &header_format)?;
+
+    let mut row = 1u32;
+    for item in items {
+        // Skip if BESZCIKKSZAM is empty
+        let cikkszam = match &item.cikkszam {
+            Some(cs) if !cs.is_empty() => cs.clone(),
+            _ => continue,
+        };
+
+        // BESZCIKKNEV: cikk_megnevezes_rovid or cikk_megnevezes
+        let megnevezes = item
+            .cikk_megnevezes_rovid
+            .clone()
+            .or_else(|| item.cikk_megnevezes.clone())
+            .unwrap_or_default();
+        
+        // Skip if BESZCIKKNEV is empty
+        if megnevezes.is_empty() {
+            continue;
+        }
+
+        // EGYSEGAR: netto_kisker_ar or find in cikk_jellemzok where jellemzo_nev = "Alap ár"
+        let mut unit_price = item.netto_kisker_ar.unwrap_or(0.0);
+        if unit_price == 0.0 {
+            if let Some(ref jellemzok) = item.cikk_jellemzok {
+                for jellemzo in jellemzok {
+                    if let Some(ref nev) = jellemzo.jellemzo_nev {
+                        if nev == "Alap ár" {
+                            if let Some(ref ertek) = jellemzo.jellemzo_ertek {
+                                unit_price = ertek.parse().unwrap_or(0.0);
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        // Write row data
+        sheet.write_string(row, 0, &cikkszam)?;
+        sheet.write_string(row, 1, &cikkszam)?;
+        sheet.write_string(row, 2, &megnevezes)?;
+        sheet.write_string(row, 3, "EGYEB")?;
+        sheet.write_string(row, 4, item.vonalkod.as_deref().unwrap_or(""))?;
+        sheet.write_number(row, 5, item.szabad_keszlet.unwrap_or(0) as f64)?;
+        sheet.write_string(row, 6, item.mennyisegi_egyseg_kod.as_deref().unwrap_or(""))?;
+        sheet.write_number(row, 7, unit_price)?;
+
+        row += 1;
+    }
+
+    workbook.save(&output_path)?;
+    let display_path = output_path.display();
+    println!("Excel file '{}' created with {} rows", display_path, row - 1);
+    Ok(())
+}

src/tools/logger.rs

@@ -0,0 +1,61 @@
+use std::fs;
+use std::io::Write;
+use std::path::PathBuf;
+use chrono::Local;
+
+pub struct Logger {
+    log_file: PathBuf,
+}
+
+impl Logger {
+    pub fn init() -> std::io::Result<Self> {
+        let log_dir = PathBuf::from("log");
+        fs::create_dir_all(&log_dir)?;
+
+        let today = Local::now().format("%Y-%m-%d").to_string();
+        let log_file = log_dir.join(format!("{}.log", today));
+
+        Ok(Logger { log_file })
+    }
+
+    pub fn log(&self, message: &str) {
+        let timestamp = Local::now().format("%Y-%m-%d %H:%M:%S").to_string();
+        let formatted = format!("[{}] {}", timestamp, message);
+
+        println!("{}", formatted);
+
+        if let Ok(mut file) = fs::OpenOptions::new()
+            .create(true)
+            .append(true)
+            .open(&self.log_file)
+        {
+            let _ = writeln!(file, "{}", formatted);
+        }
+    }
+
+    pub fn log_api_success(&self, item_count: usize) {
+        self.log(&format!(
+            "✓ API call successful - Fetched {} items",
+            item_count
+        ));
+    }
+
+    pub fn log_api_failure(&self, error: &str) {
+        self.log(&format!("✗ API call failed: {}", error));
+    }
+
+    pub fn log_export_success(&self, filepath: &str, row_count: usize) {
+        self.log(&format!(
+            "✓ Export successful - {} rows exported to {}",
+            row_count, filepath
+        ));
+    }
+
+    pub fn log_export_failure(&self, error: &str) {
+        self.log(&format!("✗ Export failed: {}", error));
+    }
+
+    pub fn log_info(&self, message: &str) {
+        self.log(&format!("ℹ {}", message));
+    }
+}

src/tools/mod.rs

@@ -0,0 +1,5 @@
+pub mod excel;
+pub mod logger;
+
+pub use excel::export_to_excel;
+pub use logger::Logger;