Add download functionality to dashboard tables

dashboard/app.py

@@ -434,13 +434,21 @@ This dashboard visualizes these values annually over the project duration, provi
             # --- Tabbed tables section ---
             with gr.Tabs():
                 with gr.Tab("Project Results (Annual)"):
-                    results_box = gr.Dataframe(label="Project Results (Annual)")
+                    with gr.Row():
+                        results_box = gr.Dataframe(label="Project Results (Annual)")
+                        download_results_btn = gr.Button("📥 Download CSV", variant="secondary", scale=0.2)
                 with gr.Tab("Species Results (Annual)"):
-                    species_box = gr.Dataframe(label="Species Results (Annual)")
+                    with gr.Row():
+                        species_box = gr.Dataframe(label="Species Results (Annual)")
+                        download_species_btn = gr.Button("📥 Download CSV", variant="secondary", scale=0.2)
                 with gr.Tab("Surviving Trees Table"):
-                    survival_box = gr.Dataframe(label="Surviving Trees Table")
+                    with gr.Row():
+                        survival_box = gr.Dataframe(label="Surviving Trees Table")
+                        download_survival_btn = gr.Button("📥 Download CSV", variant="secondary", scale=0.2)
                 with gr.Tab("Biomass Table"):
-                    biomass_debug_table = gr.Dataframe(label="Biomass Table (inputs & outputs per year)")
+                    with gr.Row():
+                        biomass_debug_table = gr.Dataframe(label="Biomass Table (inputs & outputs per year)")
+                        download_biomass_btn = gr.Button("📥 Download CSV", variant="secondary", scale=0.2)
             # --- End tabbed tables ---
             # Update the update_declining_increment callback to use these new inputs
             def update_declining_increment(y1, y2, y3, y4, y5,
@@ -491,6 +499,74 @@ This dashboard visualizes these values annually over the project duration, provi
                         *mort_vars, mort_sub, soil_carbon],
                 outputs=[carbon_plot, biomass_plot, annual_plot, growth_plot, summary_box, results_box, species_box, survival_box, biomass_debug_table]
             )
+
+            # Download functionality for tables
+            def create_csv_from_df(df):
+                if isinstance(df, str):
+                    # Convert string representation of dataframe back to dataframe
+                    import ast
+                    try:
+                        data = ast.literal_eval(df)
+                        df = pd.DataFrame(data)
+                    except:
+                        return None
+                elif hasattr(df, '_list_display') and hasattr(df, 'columns'):
+                    # Convert gradio dataframe to pandas dataframe
+                    df = pd.DataFrame(df._list_display, columns=df.columns)
+                return df
+            
+            def download_results_csv(df):
+                df = create_csv_from_df(df)
+                if df is None:
+                    return None
+                csv_data = df.to_csv(index=False)
+                return (csv_data, "project_results.csv")
+                
+            def download_species_csv(df):
+                df = create_csv_from_df(df)
+                if df is None:
+                    return None
+                csv_data = df.to_csv(index=False)
+                return (csv_data, "species_results.csv")
+                
+            def download_survival_csv(df):
+                df = create_csv_from_df(df)
+                if df is None:
+                    return None
+                csv_data = df.to_csv(index=False)
+                return (csv_data, "surviving_trees.csv")
+                
+            def download_biomass_csv(df):
+                df = create_csv_from_df(df)
+                if df is None:
+                    return None
+                csv_data = df.to_csv(index=False)
+                return (csv_data, "biomass_table.csv")
+            
+            download_results_btn.click(
+                download_results_csv,
+                inputs=[results_box],
+                outputs=[gr.File(label="Download Project Results", file_count=1, interactive=False)]
+            )
+            
+            download_species_btn.click(
+                download_species_csv,
+                inputs=[species_box],
+                outputs=[gr.File(label="Download Species Results", file_count=1, interactive=False)]
+            )
+            
+            download_survival_btn.click(
+                download_survival_csv,
+                inputs=[survival_box],
+                outputs=[gr.File(label="Download Surviving Trees", file_count=1, interactive=False)]
+            )
+            
+            download_biomass_btn.click(
+                download_biomass_csv,
+                inputs=[biomass_debug_table],
+                outputs=[gr.File(label="Download Biomass Table", file_count=1, interactive=False)]
+            )
+            
             # Show initial results
             c, b, a, g, summary, r, s, surv, biomass_debug_df = update_declining_increment(
                 year_1_default, year_2_default, year_3_default, year_4_default, year_5_default,