feat: frutiger aero visual overhaul for wrapup video slides

crates/adapters/wrapup-renderer/src/slides.rs

@@ -34,14 +34,21 @@ const GOLD: Rgba<u8> = Rgba([229, 192, 52, 255]);
 const WHITE: Rgba<u8> = Rgba([255, 255, 255, 255]);
 const DIM: Rgba<u8> = Rgba([255, 255, 255, 140]);
 const BAR_BG: Rgba<u8> = Rgba([50, 50, 65, 255]);
+const GLASS: Rgba<u8> = Rgba([20, 20, 30, 180]);
+const GLASS_PADDING: u32 = 30;
 
 pub struct SlideRenderer {
     font: FontArc,
     logo: Option<RgbaImage>,
+    backgrounds: Vec<RgbaImage>,
 }
 
 impl SlideRenderer {
-    pub fn new(font_path: Option<&str>, logo_path: Option<&str>) -> Result<Self, DomainError> {
+    pub fn new(
+        font_path: Option<&str>,
+        logo_path: Option<&str>,
+        bg_dir: Option<&str>,
+    ) -> Result<Self, DomainError> {
         let font = if let Some(path) = font_path {
             let bytes = std::fs::read(path)
                 .map_err(|e| DomainError::InfrastructureError(format!("font load: {e}")))?;
@@ -59,7 +66,88 @@ impl SlideRenderer {
             None
         };
 
-        Ok(Self { font, logo })
+        let mut backgrounds = Vec::new();
+        if let Some(dir) = bg_dir {
+            if let Ok(entries) = std::fs::read_dir(dir) {
+                for entry in entries.flatten() {
+                    let path = entry.path();
+                    let ext = path
+                        .extension()
+                        .and_then(|e| e.to_str())
+                        .unwrap_or("")
+                        .to_lowercase();
+                    if matches!(ext.as_str(), "jpg" | "jpeg" | "png" | "webp") {
+                        match image::open(&path) {
+                            Ok(img) => backgrounds.push(img.to_rgba8()),
+                            Err(e) => tracing::warn!("bg load {}: {e}", path.display()),
+                        }
+                    }
+                }
+            }
+        }
+
+        Ok(Self {
+            font,
+            logo,
+            backgrounds,
+        })
+    }
+
+    /// Pick a background for slide at `index`, resized to `w x h` with dark gradient overlay.
+    fn pick_background(&self, index: usize, w: u32, h: u32) -> Option<RgbaImage> {
+        if self.backgrounds.is_empty() {
+            return None;
+        }
+        let bg = &self.backgrounds[index % self.backgrounds.len()];
+        let resized = image::imageops::resize(bg, w, h, image::imageops::FilterType::Triangle);
+        let mut out = resized;
+        // darken top 40% and bottom 40% with gradient to ~70% black
+        let top_cutoff = (h as f32 * 0.4) as u32;
+        let bot_start = h - top_cutoff;
+        for y in 0..h {
+            let darken = if y < top_cutoff {
+                // fade from 0.70 at top to 0.0 at cutoff
+                0.70 * (1.0 - y as f32 / top_cutoff as f32)
+            } else if y >= bot_start {
+                // fade from 0.0 at bot_start to 0.70 at bottom
+                0.70 * ((y - bot_start) as f32 / top_cutoff as f32)
+            } else {
+                0.0
+            };
+            if darken > 0.0 {
+                let factor = 1.0 - darken;
+                for x in 0..w {
+                    let px = out.get_pixel_mut(x, y);
+                    px[0] = (px[0] as f32 * factor) as u8;
+                    px[1] = (px[1] as f32 * factor) as u8;
+                    px[2] = (px[2] as f32 * factor) as u8;
+                }
+            }
+        }
+        Some(out)
+    }
+
+    /// Start a canvas: background image if available, else solid color.
+    fn make_canvas(&self, slide_index: usize, w: u32, h: u32) -> RgbaImage {
+        self.pick_background(slide_index, w, h)
+            .unwrap_or_else(|| fill(w, h))
+    }
+
+    /// Draw a semi-transparent dark glass panel.
+    fn draw_glass_panel(&self, canvas: &mut RgbaImage, x: i32, y: i32, pw: u32, ph: u32) {
+        // clamp to canvas bounds
+        let x0 = x.max(0) as u32;
+        let y0 = y.max(0) as u32;
+        let x1 = (x as u32 + pw).min(canvas.width());
+        let y1 = (y as u32 + ph).min(canvas.height());
+        if x1 <= x0 || y1 <= y0 {
+            return;
+        }
+        draw_filled_rect_mut(
+            canvas,
+            Rect::at(x0 as i32, y0 as i32).of_size(x1 - x0, y1 - y0),
+            GLASS,
+        );
     }
 
     fn stamp_logo(&self, canvas: &mut RgbaImage) {
@@ -87,7 +175,6 @@ impl SlideRenderer {
         color: Rgba<u8>,
     ) {
         let px = PxScale::from(scale);
-        // approximate width: ~0.5 * scale * len
         let approx_w = (text.len() as f32 * scale * 0.45) as i32;
         let x = ((canvas.width() as i32 - approx_w) / 2).max(10);
         draw_text_mut(canvas, color, x, y, px, &self.font, text);
@@ -105,13 +192,73 @@ impl SlideRenderer {
         draw_text_mut(canvas, color, x, y, PxScale::from(scale), &self.font, text);
     }
 
+    /// Draw a small thumbnail from raw image bytes, resized to `size x size`.
+    fn draw_thumbnail(
+        canvas: &mut RgbaImage,
+        bytes: &[u8],
+        x: i64,
+        y: i64,
+        tw: u32,
+        th: u32,
+    ) {
+        if let Ok(img) = decode_image(bytes) {
+            let thumb = img.resize_exact(tw, th, image::imageops::FilterType::Triangle);
+            image::imageops::overlay(canvas, &thumb.to_rgba8(), x, y);
+        }
+    }
+
+    /// Find cast photo bytes matching `name` (case-insensitive substring).
+    fn find_cast_photo<'a>(
+        name: &str,
+        cast_images: &'a [(String, Vec<u8>)],
+    ) -> Option<&'a [u8]> {
+        let lower = name.to_lowercase();
+        cast_images
+            .iter()
+            .find(|(n, _)| {
+                let cn = n.to_lowercase();
+                cn.contains(&lower) || lower.contains(&cn)
+            })
+            .map(|(_, b)| b.as_slice())
+    }
+
+    /// Find poster bytes matching a poster_path (compare filename stem).
+    fn find_poster<'a>(
+        poster_path: &str,
+        poster_images: &'a [(String, Vec<u8>)],
+    ) -> Option<&'a [u8]> {
+        let target = std::path::Path::new(poster_path)
+            .file_name()
+            .and_then(|f| f.to_str())
+            .unwrap_or(poster_path);
+        poster_images
+            .iter()
+            .find(|(p, _)| {
+                let fname = std::path::Path::new(p)
+                    .file_name()
+                    .and_then(|f| f.to_str())
+                    .unwrap_or(p);
+                fname == target
+            })
+            .map(|(_, b)| b.as_slice())
+    }
+
+    // ── Slides ──────────────────────────────────────────────
+
     pub fn render_hero(
         &self,
         report: &WrapUpReport,
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(0, w, h);
+
+        // glass panel in center area
+        let panel_x = GLASS_PADDING as i32;
+        let panel_y = (h / 7) as i32;
+        let panel_w = w - GLASS_PADDING * 2;
+        let panel_h = h * 5 / 7;
+        self.draw_glass_panel(&mut img, panel_x, panel_y, panel_w, panel_h);
 
         let year_label = format!(
             "{} - {}",
@@ -158,7 +305,15 @@ impl SlideRenderer {
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(1, w, h);
+
+        // glass panel covering content area
+        let panel_x = (GLASS_PADDING / 2) as i32;
+        let panel_y = (h / 10) as i32;
+        let panel_w = w - GLASS_PADDING;
+        let panel_h = h * 4 / 5;
+        self.draw_glass_panel(&mut img, panel_x, panel_y, panel_w, panel_h);
+
         self.draw_centered(&mut img, "Ratings", (h / 8) as i32, 56.0, GOLD);
 
         if let Some(avg) = report.avg_rating {
@@ -167,7 +322,6 @@ impl SlideRenderer {
             self.draw_centered(&mut img, "average rating", (h / 4 + 90) as i32, 32.0, DIM);
         }
 
-        // rating distribution bars
         let max_count = report
             .rating_distribution
             .iter()
@@ -186,18 +340,15 @@ impl SlideRenderer {
             let y = bar_area_top + (i as i32) * (bar_h as i32 + bar_gap as i32);
             self.draw_left(&mut img, &label, margin_x - 60, y + 2, 28.0, GOLD);
 
-            // background bar
             draw_filled_rect_mut(
                 &mut img,
                 Rect::at(margin_x, y).of_size(max_bar_w, bar_h),
                 BAR_BG,
             );
-            // filled bar
             let fill_w = ((count as f32 / max_count as f32) * max_bar_w as f32) as u32;
             if fill_w > 0 {
                 draw_filled_rect_mut(&mut img, Rect::at(margin_x, y).of_size(fill_w, bar_h), GOLD);
             }
-            // count label
             let count_s = count.to_string();
             self.draw_left(
                 &mut img,
@@ -216,21 +367,64 @@ impl SlideRenderer {
     pub fn render_directors(
         &self,
         report: &WrapUpReport,
+        cast_images: &[(String, Vec<u8>)],
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(2, w, h);
-        self.draw_centered(&mut img, "Top Directors", (h / 8) as i32, 56.0, GOLD);
 
         let margin = 80i32;
         let start_y = (h / 4) as i32;
+        let row_h = 100i32;
+        let panel_h = (report.top_directors.len().min(5) as u32) * row_h as u32 + GLASS_PADDING * 2;
+        self.draw_glass_panel(
+            &mut img,
+            margin - GLASS_PADDING as i32,
+            start_y - GLASS_PADDING as i32,
+            w - (margin as u32 - GLASS_PADDING) * 2,
+            panel_h,
+        );
+
+        self.draw_centered(&mut img, "Top Directors", (h / 8) as i32, 56.0, GOLD);
+
+        let thumb_size = 60u32;
+        // offset text right when cast photos present
+        let text_offset = if cast_images.is_empty() { 60 } else { thumb_size as i32 + 20 };
+
         for (i, d) in report.top_directors.iter().take(5).enumerate() {
-            let y = start_y + (i as i32) * 90;
+            let y = start_y + (i as i32) * row_h;
+
+            // cast photo thumbnail
+            if let Some(photo) = Self::find_cast_photo(&d.name, cast_images) {
+                Self::draw_thumbnail(
+                    &mut img,
+                    photo,
+                    margin as i64 + 40,
+                    y as i64,
+                    thumb_size,
+                    thumb_size,
+                );
+            }
+
             let rank = format!("{}.", i + 1);
-            self.draw_left(&mut img, &rank, margin, y, 36.0, GOLD);
+            self.draw_left(&mut img, &rank, margin, y + 10, 36.0, GOLD);
-            self.draw_left(&mut img, &d.name, margin + 60, y, 36.0, WHITE);
+            self.draw_left(
+                &mut img,
+                &d.name,
+                margin + text_offset,
+                y + 10,
+                36.0,
+                WHITE,
+            );
             let detail = format!("{} films  avg {:.1}\u{2605}", d.count, d.avg_rating);
-            self.draw_left(&mut img, &detail, margin + 60, y + 44, 24.0, DIM);
+            self.draw_left(
+                &mut img,
+                &detail,
+                margin + text_offset,
+                y + 54,
+                24.0,
+                DIM,
+            );
         }
 
         self.stamp_logo(&mut img);
@@ -240,21 +434,62 @@ impl SlideRenderer {
     pub fn render_actors(
         &self,
         report: &WrapUpReport,
+        cast_images: &[(String, Vec<u8>)],
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(3, w, h);
-        self.draw_centered(&mut img, "Top Actors", (h / 8) as i32, 56.0, GOLD);
 
         let margin = 80i32;
         let start_y = (h / 4) as i32;
+        let row_h = 100i32;
+        let panel_h = (report.top_actors.len().min(5) as u32) * row_h as u32 + GLASS_PADDING * 2;
+        self.draw_glass_panel(
+            &mut img,
+            margin - GLASS_PADDING as i32,
+            start_y - GLASS_PADDING as i32,
+            w - (margin as u32 - GLASS_PADDING) * 2,
+            panel_h,
+        );
+
+        self.draw_centered(&mut img, "Top Actors", (h / 8) as i32, 56.0, GOLD);
+
+        let thumb_size = 60u32;
+        let text_offset = if cast_images.is_empty() { 60 } else { thumb_size as i32 + 20 };
+
         for (i, a) in report.top_actors.iter().take(5).enumerate() {
-            let y = start_y + (i as i32) * 90;
+            let y = start_y + (i as i32) * row_h;
+
+            if let Some(photo) = Self::find_cast_photo(&a.name, cast_images) {
+                Self::draw_thumbnail(
+                    &mut img,
+                    photo,
+                    margin as i64 + 40,
+                    y as i64,
+                    thumb_size,
+                    thumb_size,
+                );
+            }
+
             let rank = format!("{}.", i + 1);
-            self.draw_left(&mut img, &rank, margin, y, 36.0, GOLD);
+            self.draw_left(&mut img, &rank, margin, y + 10, 36.0, GOLD);
-            self.draw_left(&mut img, &a.name, margin + 60, y, 36.0, WHITE);
+            self.draw_left(
+                &mut img,
+                &a.name,
+                margin + text_offset,
+                y + 10,
+                36.0,
+                WHITE,
+            );
             let detail = format!("{} films  avg {:.1}\u{2605}", a.count, a.avg_rating);
-            self.draw_left(&mut img, &detail, margin + 60, y + 44, 24.0, DIM);
+            self.draw_left(
+                &mut img,
+                &detail,
+                margin + text_offset,
+                y + 54,
+                24.0,
+                DIM,
+            );
         }
 
         self.stamp_logo(&mut img);
@@ -267,15 +502,26 @@ impl SlideRenderer {
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(4, w, h);
+
+        let margin = 80i32;
+        let start_y = (h / 4) as i32;
+        let num_genres = report.top_genres.len().min(8) as u32;
+        let panel_h = num_genres * 80 + GLASS_PADDING * 2 + 80;
+        self.draw_glass_panel(
+            &mut img,
+            margin - GLASS_PADDING as i32,
+            (h / 10) as i32,
+            w - (margin as u32 - GLASS_PADDING) * 2,
+            panel_h + (start_y as u32 - h / 10),
+        );
+
         self.draw_centered(&mut img, "Genre Breakdown", (h / 8) as i32, 56.0, GOLD);
 
         let detail = format!("{} genres explored", report.genre_diversity);
         self.draw_centered(&mut img, &detail, (h / 8) as i32 + 64, 28.0, DIM);
 
-        let margin = 80i32;
         let bar_area_w = (w as i32 - margin * 2 - 200) as u32;
-        let start_y = (h / 4) as i32;
         let max_count = report.top_genres.first().map(|g| g.count).unwrap_or(1).max(1);
 
         for (i, g) in report.top_genres.iter().take(8).enumerate() {
@@ -316,18 +562,28 @@ impl SlideRenderer {
     pub fn render_highlights(
         &self,
         report: &WrapUpReport,
+        poster_images: &[(String, Vec<u8>)],
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut img = fill(w, h);
+        let mut img = self.make_canvas(5, w, h);
-        self.draw_centered(&mut img, "Highlights", (h / 10) as i32, 56.0, GOLD);
+
+        // glass panel behind highlights grid
+        let panel_x = GLASS_PADDING as i32;
+        let panel_y = (h / 10) as i32;
+        let panel_w = w - GLASS_PADDING * 2;
+        let panel_h = h * 4 / 5;
+        self.draw_glass_panel(&mut img, panel_x, panel_y, panel_w, panel_h);
+
+        self.draw_centered(&mut img, "Highlights", (h / 10) as i32 + 10, 56.0, GOLD);
 
-        // 2-column layout of notable movies
         let col_w = w / 2;
         let start_y = (h / 5) as i32;
         let row_h = (h / 5) as i32;
         let left = 60i32;
         let right = col_w as i32 + 40;
+        let poster_w = 60u32;
+        let poster_h = 90u32;
 
         let items: Vec<(&str, Option<&domain::models::wrapup::MovieRef>)> = vec![
             ("Highest Rated", report.highest_rated_movie.as_ref()),
@@ -346,6 +602,29 @@ impl SlideRenderer {
             let x = if col == 0 { left } else { right };
             let y = start_y + (row as i32) * row_h;
 
+            // poster thumbnail if available
+            let text_x_offset = if let Some(m) = movie_ref {
+                if let Some(ref pp) = m.poster_path {
+                    if let Some(pb) = Self::find_poster(pp, poster_images) {
+                        Self::draw_thumbnail(
+                            &mut img,
+                            pb,
+                            x as i64,
+                            (y + 30) as i64,
+                            poster_w,
+                            poster_h,
+                        );
+                        poster_w as i32 + 10
+                    } else {
+                        0
+                    }
+                } else {
+                    0
+                }
+            } else {
+                0
+            };
+
             self.draw_left(&mut img, label, x, y, 28.0, GOLD);
             if let Some(m) = movie_ref {
                 let title = if m.title.len() > 22 {
@@ -353,9 +632,23 @@ impl SlideRenderer {
                 } else {
                     m.title.clone()
                 };
-                self.draw_left(&mut img, &title, x, y + 36, 26.0, WHITE);
+                self.draw_left(
+                    &mut img,
+                    &title,
+                    x + text_x_offset,
+                    y + 36,
+                    26.0,
+                    WHITE,
+                );
                 let sub = format!("({})", m.year);
-                self.draw_left(&mut img, &sub, x, y + 68, 22.0, DIM);
+                self.draw_left(
+                    &mut img,
+                    &sub,
+                    x + text_x_offset,
+                    y + 68,
+                    22.0,
+                    DIM,
+                );
             } else {
                 self.draw_left(&mut img, "-", x, y + 36, 26.0, DIM);
             }
@@ -382,20 +675,42 @@ impl SlideRenderer {
         w: u32,
         h: u32,
     ) -> Result<Vec<u8>, DomainError> {
-        let mut canvas = fill(w, h);
+        let mut canvas = RgbaImage::from_pixel(w, h, Rgba([0, 0, 0, 255]));
+
+        // poster aspect 2:3, calculate grid to fill entire frame
+        // find cols that best tile the width, then rows to fill height
+        let poster_ratio = 2.0_f32 / 3.0;
+        // try col counts from 3..8, pick one that wastes least space
+        let cols = (3..=8)
+            .min_by_key(|&c| {
+                let tw = w / c;
+                let th = (tw as f32 / poster_ratio) as u32;
+                let rows_needed = (h + th - 1) / th;
+                let total = rows_needed * c;
+                // prefer filling screen with fewer leftover pixels
+                let waste_y = (rows_needed * th).saturating_sub(h);
+                let shortage = total.saturating_sub(posters.len() as u32);
+                waste_y + shortage * 100
+            })
+            .unwrap_or(4);
 
-        let cols = 4u32;
         let thumb_w = w / cols;
-        let thumb_h = (thumb_w * 3) / 2;
+        let thumb_h = (thumb_w as f32 / poster_ratio) as u32;
+        let total_rows = (h + thumb_h - 1) / thumb_h;
+        let total_cells = (total_rows * cols) as usize;
 
-        for (i, (name, bytes)) in posters.iter().enumerate() {
+        for i in 0..total_cells {
+            if posters.is_empty() {
+                break;
+            }
+            // tile/repeat if not enough posters
+            let idx = i % posters.len();
+            let (name, bytes) = &posters[idx];
             let col = (i as u32) % cols;
             let row = (i as u32) / cols;
             let x = col * thumb_w;
             let y = row * thumb_h;
-            if y + thumb_h > h {
+
-                break;
-            }
             match decode_image(bytes) {
                 Ok(poster) => {
                     let thumb = poster.resize_exact(