fix: change pdf params env variables to string

src/config.rs

@@ -91,76 +91,76 @@ pub struct Chrome {
     pub pdf_landscape: bool,
     #[env_config(
         name = "ZO_PDF_DISPLAY_HEADER_FOOTER",
-        default = false,
-        help = "Display header and footer in the PDF"
+        default = "",
+        help = "Display header and footer in the PDF. Set to 'true' or 'false'. When empty, uses browser default"
     )]
-    pub pdf_display_header_footer: bool,
+    pub pdf_display_header_footer: String,
     #[env_config(
         name = "ZO_PDF_PRINT_BACKGROUND",
-        default = false,
-        help = "Print background graphics in the PDF"
+        default = "",
+        help = "Print background graphics in the PDF. Set to 'true' or 'false'. When empty, uses browser default"
     )]
-    pub pdf_print_background: bool,
+    pub pdf_print_background: String,
     #[env_config(
         name = "ZO_PDF_SCALE",
-        default = 1.0,
-        help = "Scale of the webpage rendering. Default is 1.0"
+        default = "",
+        help = "Scale of the webpage rendering (e.g., 1.0 for 100%). When empty, uses browser default"
     )]
-    pub pdf_scale: f64,
+    pub pdf_scale: String,
     #[env_config(
         name = "ZO_PDF_PAPER_WIDTH",
-        default = 8.5,
-        help = "Paper width in inches. Default is 8.5 inches (US Letter)"
+        default = "",
+        help = "Paper width in inches (e.g., 8.5 for US Letter). When empty, uses browser default"
     )]
-    pub pdf_paper_width: f64,
+    pub pdf_paper_width: String,
     #[env_config(
         name = "ZO_PDF_PAPER_HEIGHT",
-        default = 11.0,
-        help = "Paper height in inches. Default is 11 inches (US Letter)"
+        default = "",
+        help = "Paper height in inches (e.g., 11.0 for US Letter). When empty, uses browser default"
     )]
-    pub pdf_paper_height: f64,
+    pub pdf_paper_height: String,
     #[env_config(
         name = "ZO_PDF_MARGIN_TOP",
-        default = 0.4,
-        help = "Top margin in inches. Default is 0.4 inches (~1cm)"
+        default = "",
+        help = "Top margin in inches. When empty, uses browser default"
     )]
-    pub pdf_margin_top: f64,
+    pub pdf_margin_top: String,
     #[env_config(
         name = "ZO_PDF_MARGIN_BOTTOM",
-        default = 0.4,
-        help = "Bottom margin in inches. Default is 0.4 inches (~1cm)"
+        default = "",
+        help = "Bottom margin in inches. When empty, uses browser default"
     )]
-    pub pdf_margin_bottom: f64,
+    pub pdf_margin_bottom: String,
     #[env_config(
         name = "ZO_PDF_MARGIN_LEFT",
-        default = 0.4,
-        help = "Left margin in inches. Default is 0.4 inches (~1cm)"
+        default = "",
+        help = "Left margin in inches. When empty, uses browser default"
     )]
-    pub pdf_margin_left: f64,
+    pub pdf_margin_left: String,
     #[env_config(
         name = "ZO_PDF_MARGIN_RIGHT",
-        default = 0.4,
-        help = "Right margin in inches. Default is 0.4 inches (~1cm)"
+        default = "",
+        help = "Right margin in inches. When empty, uses browser default"
     )]
-    pub pdf_margin_right: f64,
+    pub pdf_margin_right: String,
     #[env_config(
         name = "ZO_PDF_PREFER_CSS_PAGE_SIZE",
-        default = false,
-        help = "Prefer page size as defined by CSS. If false, content will be scaled to fit paper size"
+        default = "",
+        help = "Prefer page size as defined by CSS. Set to 'true' or 'false'. When empty, uses browser default"
     )]
-    pub pdf_prefer_css_page_size: bool,
+    pub pdf_prefer_css_page_size: String,
     #[env_config(
         name = "ZO_PDF_GENERATE_TAGGED_PDF",
-        default = false,
-        help = "Generate tagged (accessible) PDF for screen readers and assistive technologies"
+        default = "",
+        help = "Generate tagged (accessible) PDF for screen readers. Set to 'true' or 'false'. When empty, uses browser default"
     )]
-    pub pdf_generate_tagged_pdf: bool,
+    pub pdf_generate_tagged_pdf: String,
     #[env_config(
         name = "ZO_PDF_GENERATE_DOCUMENT_OUTLINE",
-        default = false,
-        help = "Embed the document outline into the PDF for navigation"
+        default = "",
+        help = "Embed the document outline into the PDF. Set to 'true' or 'false'. When empty, uses browser default"
     )]
-    pub pdf_generate_document_outline: bool,
+    pub pdf_generate_document_outline: String,
 }
 
 #[derive(EnvConfig)]

src/lib.rs

@@ -462,20 +462,34 @@ pub async fn generate_report(
     // Convert the page into pdf
     let attachment_data = match report_type {
         ReportType::PDF => {
+            // Helper function to convert string to Option<bool>
+            let parse_bool_opt = |s: &str| -> Option<bool> {
+                match s.trim().to_lowercase().as_str() {
+                    "true" => Some(true),
+                    "false" => Some(false),
+                    _ => None,
+                }
+            };
+
+            // Helper function to parse string to Option<f64>
+            let parse_f64_opt = |s: &str| -> Option<f64> { s.trim().parse::<f64>().ok() };
+
             page.pdf(PrintToPdfParams {
                 landscape: Some(CONFIG.chrome.pdf_landscape),
-                display_header_footer: Some(CONFIG.chrome.pdf_display_header_footer),
-                print_background: Some(CONFIG.chrome.pdf_print_background),
-                scale: Some(CONFIG.chrome.pdf_scale),
-                paper_width: Some(CONFIG.chrome.pdf_paper_width),
-                paper_height: Some(CONFIG.chrome.pdf_paper_height),
-                margin_top: Some(CONFIG.chrome.pdf_margin_top),
-                margin_bottom: Some(CONFIG.chrome.pdf_margin_bottom),
-                margin_left: Some(CONFIG.chrome.pdf_margin_left),
-                margin_right: Some(CONFIG.chrome.pdf_margin_right),
-                prefer_css_page_size: Some(CONFIG.chrome.pdf_prefer_css_page_size),
-                generate_tagged_pdf: Some(CONFIG.chrome.pdf_generate_tagged_pdf),
-                generate_document_outline: Some(CONFIG.chrome.pdf_generate_document_outline),
+                display_header_footer: parse_bool_opt(&CONFIG.chrome.pdf_display_header_footer),
+                print_background: parse_bool_opt(&CONFIG.chrome.pdf_print_background),
+                scale: parse_f64_opt(&CONFIG.chrome.pdf_scale),
+                paper_width: parse_f64_opt(&CONFIG.chrome.pdf_paper_width),
+                paper_height: parse_f64_opt(&CONFIG.chrome.pdf_paper_height),
+                margin_top: parse_f64_opt(&CONFIG.chrome.pdf_margin_top),
+                margin_bottom: parse_f64_opt(&CONFIG.chrome.pdf_margin_bottom),
+                margin_left: parse_f64_opt(&CONFIG.chrome.pdf_margin_left),
+                margin_right: parse_f64_opt(&CONFIG.chrome.pdf_margin_right),
+                prefer_css_page_size: parse_bool_opt(&CONFIG.chrome.pdf_prefer_css_page_size),
+                generate_tagged_pdf: parse_bool_opt(&CONFIG.chrome.pdf_generate_tagged_pdf),
+                generate_document_outline: parse_bool_opt(
+                    &CONFIG.chrome.pdf_generate_document_outline,
+                ),
                 ..Default::default()
             })
             .await?

src/main.rs

@@ -43,6 +43,64 @@ async fn main() -> Result<(), anyhow::Error> {
         panic!("Report User email and password must be specified");
     }
 
+    // Log configured Chrome PDF parameters
+    log::info!("Chrome PDF Configuration:");
+    log::info!("  pdf_landscape: {}", CONFIG.chrome.pdf_landscape);
+
+    let display_opt = |s: &str| {
+        if s.is_empty() {
+            "None (browser default)".to_string()
+        } else {
+            format!("Some({})", s)
+        }
+    };
+
+    log::info!(
+        "  pdf_display_header_footer: {}",
+        display_opt(&CONFIG.chrome.pdf_display_header_footer)
+    );
+    log::info!(
+        "  pdf_print_background: {}",
+        display_opt(&CONFIG.chrome.pdf_print_background)
+    );
+    log::info!("  pdf_scale: {}", display_opt(&CONFIG.chrome.pdf_scale));
+    log::info!(
+        "  pdf_paper_width: {}",
+        display_opt(&CONFIG.chrome.pdf_paper_width)
+    );
+    log::info!(
+        "  pdf_paper_height: {}",
+        display_opt(&CONFIG.chrome.pdf_paper_height)
+    );
+    log::info!(
+        "  pdf_margin_top: {}",
+        display_opt(&CONFIG.chrome.pdf_margin_top)
+    );
+    log::info!(
+        "  pdf_margin_bottom: {}",
+        display_opt(&CONFIG.chrome.pdf_margin_bottom)
+    );
+    log::info!(
+        "  pdf_margin_left: {}",
+        display_opt(&CONFIG.chrome.pdf_margin_left)
+    );
+    log::info!(
+        "  pdf_margin_right: {}",
+        display_opt(&CONFIG.chrome.pdf_margin_right)
+    );
+    log::info!(
+        "  pdf_prefer_css_page_size: {}",
+        display_opt(&CONFIG.chrome.pdf_prefer_css_page_size)
+    );
+    log::info!(
+        "  pdf_generate_tagged_pdf: {}",
+        display_opt(&CONFIG.chrome.pdf_generate_tagged_pdf)
+    );
+    log::info!(
+        "  pdf_generate_document_outline: {}",
+        display_opt(&CONFIG.chrome.pdf_generate_document_outline)
+    );
+
     let haddr: SocketAddr = if CONFIG.http.ipv6_enabled {
         format!("[::]:{}", CONFIG.http.port).parse()?
     } else {