From e804b6bca2291d1ac3dff9208cd8fd1dc9ba6802 Mon Sep 17 00:00:00 2001
From: Colin Maudry <colin@maudry.com>
Date: Wed, 18 Mar 2026 14:59:32 +0100
Subject: [PATCH] URL partageable pour la page observatoire #65

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/pages/observatoire.py | 52 +++++++++++++++++++++++++++++++++++++++
 tests/test_main.py        | 22 +++++++++++++++++
 2 files changed, 74 insertions(+)

diff --git a/src/pages/observatoire.py b/src/pages/observatoire.py
index 67ab659..b42a99a 100644
--- a/src/pages/observatoire.py
+++ b/src/pages/observatoire.py
@@ -274,6 +274,12 @@ Alors, on fait comment ?
                                         disabled=True,
                                         className="mt-2",
                                     ),
+                                    dcc.Input(
+                                        id="observatoire-share-url",
+                                        readOnly=True,
+                                        style={"display": "none"},
+                                    ),
+                                    html.Div(id="observatoire-copy-container"),
                                 ],
                             ),
                             dbc.Col(
@@ -310,6 +316,52 @@ def restore_filters_from_url(search):
     return acheteur_id, titulaire_id, ""
 
 
+@callback(
+    Output("observatoire-share-url", "value"),
+    Output("observatoire-copy-container", "children"),
+    Input("dashboard_acheteur_id", "value"),
+    Input("dashboard_titulaire_id", "value"),
+    State("dashboard_url", "href"),
+    prevent_initial_call=True,
+)
+def sync_observatoire_share_url(acheteur_id, titulaire_id, href):
+    if not href:
+        return no_update, no_update
+
+    base_url = href.split("?")[0]
+
+    params = {}
+    if acheteur_id:
+        params["acheteur_id"] = acheteur_id
+    if titulaire_id:
+        params["titulaire_id"] = titulaire_id
+
+    query_string = urllib.parse.urlencode(params)
+    full_url = f"{base_url}?{query_string}" if query_string else base_url
+
+    copy_button = dcc.Clipboard(
+        id="btn-copy-observatoire-url",
+        target_id="observatoire-share-url",
+        title="Copier l'URL de cette vue",
+        style={
+            "display": "inline-block",
+            "fontSize": 20,
+            "verticalAlign": "top",
+            "cursor": "pointer",
+        },
+        className="fa fa-link",
+        children=[
+            dbc.Button(
+                "Partager",
+                className="btn btn-primary mt-2",
+                title="Copier l'adresse de cette vue filtrée pour la partager.",
+            )
+        ],
+    )
+
+    return full_url, copy_button
+
+
 @callback(
     Output("cards", "children"),
     Output("btn-download-observatoire", "disabled"),
diff --git a/tests/test_main.py b/tests/test_main.py
index 995a669..6cd2903 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -157,3 +157,25 @@ def test_006_observatoire_url_to_input(dash_duo: DashComposite):
     assert acheteur_input.get_attribute("value") == "a1", (
         "acheteur_id input should be populated from URL param"
     )
+
+
+def test_007_observatoire_share_url(dash_duo: DashComposite):
+    from src.app import app
+
+    dash_duo.start_server(app)
+    dash_duo.wait_for_text_to_equal(".logo > h1", "decp.info", timeout=4)
+
+    # Navigate to observatoire with acheteur_id query param
+    dash_duo.wait_for_page(f"{dash_duo.server_url}/observatoire?acheteur_id=a1")
+    dash_duo.wait_for_element("#observatoire-share-url", timeout=4)
+
+    import time
+
+    time.sleep(1)  # Allow callback chain to complete
+
+    share_url_input = dash_duo.find_element("#observatoire-share-url")
+    share_url_value = share_url_input.get_attribute("value")
+
+    assert "acheteur_id=a1" in share_url_value, (
+        f"Share URL should contain acheteur_id param, got: {share_url_value}"
+    )