06/15 Phase 4 + 5 codes

app/blueprints/ads/routes.py

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+"""Ads blueprint: click tracking redirect, sponsor directory.
+Ad creative upload lives in the admin blueprint (Phase 6).
+"""
+from flask import (Blueprint, redirect, abort, render_template,
+                   request, current_app)
+from flask_login import current_user
+from flask_babel import get_locale
+
+from app.extensions import db
+from app.models.ads import Ad
+from app.services.ads import (get_ad, record_impression, record_click,
+                               active_sponsors)
+
+ads_bp = Blueprint("ads", __name__)
+
+
+# ── Click tracking redirect ────────────────────────────────────────────────
+
+@ads_bp.route("/ads/<int:ad_id>/click")
+def click(ad_id):
+    ad = db.session.get(Ad, ad_id)
+    if ad is None or not ad.is_running:
+        abort(404)
+    try:
+        record_click(ad_id)
+    except Exception as e:
+        current_app.logger.error("Click record error: %s", e)
+    return redirect(ad.target_url)
+
+
+# ── Sponsor directory ──────────────────────────────────────────────────────
+
+@ads_bp.route("/sponsors")
+def sponsor_directory():
+    sponsors = active_sponsors(tier="directory")
+    return render_template("sponsors/directory.html", sponsors=sponsors)
+
+
+# ── Context processor: inject ads into every template ─────────────────────
+
+def inject_ads():
+    """Called by the app factory context processor.
+    Returns ad slots for use in templates.
+    Ads suppressed for subscribers (ad_free plan limit).
+    """
+    show_ads = True
+    if current_user.is_authenticated:
+        plan = current_user.tier
+        if plan and plan.limit("ad_free"):
+            show_ads = False
+
+    if not show_ads:
+        return {"ads": {}, "show_ads": False}
+
+    lang = str(get_locale()) if get_locale() else None
+    state = request.args.get("state") or None
+
+    ads = {}
+    for slot in Ad.SLOTS:
+        ad = get_ad(slot, lang=lang, state=state)
+        if ad:
+            ads[slot] = ad
+            # record impression (fire-and-forget; errors suppressed)
+            try:
+                record_impression(ad.id)
+            except Exception:
+                pass
+
+    return {"ads": ads, "show_ads": True}