nkwork9999 · nkwork9999 · Oct 9, 2025 · Oct 9, 2025 · Oct 9, 2025 · Oct 11, 2025
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,64 +1,20 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.5...3.29)
 
 set(TARGET_NAME miniplot)
-
-find_package(OpenSSL REQUIRED)
-
 set(EXTENSION_NAME ${TARGET_NAME}_extension)
 set(LOADABLE_EXTENSION_NAME ${TARGET_NAME}_loadable_extension)
 
 project(${TARGET_NAME})
-include_directories(src/include)
 
-set(EXTENSION_SOURCES src/miniplot_extension.cpp)
-
-# Rust静的ライブラリのパス
-set(CHART_VIEWER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/chart_viewer)
-set(RUST_LIB ${CHART_VIEWER_DIR}/target/release/libchart_viewer.a)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
-# Rustライブラリを自動ビルド
-add_custom_command(
-    OUTPUT ${RUST_LIB}
-    COMMAND cargo build --release --lib
-    WORKING_DIRECTORY ${CHART_VIEWER_DIR}
-    COMMENT "Building Rust chart_viewer library..."
-    VERBATIM
-)
+set(EXTENSION_SOURCES src/miniplot_extension.cpp)
 
-add_custom_target(rust_chart_viewer ALL
-    DEPENDS ${RUST_LIB}
-)
+include_directories(src/include)
 
-# DuckDBエクステンションをビルド
 build_static_extension(${TARGET_NAME} ${EXTENSION_SOURCES})
 build_loadable_extension(${TARGET_NAME} " " ${EXTENSION_SOURCES})
 
-# 依存関係を追加
-add_dependencies(${EXTENSION_NAME} rust_chart_viewer)
-add_dependencies(${LOADABLE_EXTENSION_NAME} rust_chart_viewer)
-
-# OpenSSLリンク
-target_link_libraries(${EXTENSION_NAME} OpenSSL::SSL OpenSSL::Crypto)
-target_link_libraries(${LOADABLE_EXTENSION_NAME} OpenSSL::SSL OpenSSL::Crypto)
-
-# Rust静的ライブラリをリンク（重要！）
-target_link_libraries(${EXTENSION_NAME} ${RUST_LIB})
-target_link_libraries(${LOADABLE_EXTENSION_NAME} ${RUST_LIB})
-
-# macOS用のシステムライブラリ
-if(APPLE)
-    target_link_libraries(${EXTENSION_NAME}
-        "-framework Foundation"
-        "-framework Security"
-        resolv
-    )
-    target_link_libraries(${LOADABLE_EXTENSION_NAME}
-        "-framework Foundation"
-        "-framework Security"
-        resolv
-    )
-endif()
-
 install(
   TARGETS ${EXTENSION_NAME}
   EXPORT "${DUCKDB_EXPORT_SET}"

diff --git a/README.md b/README.md
@@ -12,20 +12,20 @@ No more switching between pandas and matplotlib for data visualization.
 
 ## ✨ What's New in v0.0.2
 
-- 🔄 **Complete rewrite** using Plotly.js for better compatibility
+- 🔄 **Complete C++-only rewrite** - Removed Rust dependency for better compatibility
 - 🌐 **Browser-based rendering** - Charts open in your default browser
-- 📦 **Fully offline** - Plotly.js embedded (3.4MB), no internet required
+- 📦 **Lightweight build** - Uses Plotly.js CDN (no large embedded libraries)
 - 🎨 **Interactive features** - Zoom, pan, hover tooltips, export to PNG
-- 🚀 **Simpler architecture** - No external binaries or process management
-- ⚡ **Single file** - Just 9.2MB, install and use immediately
+- 🚀 **Worker thread compatible** - Works in DuckDB Community Extensions
+- ⚡ **Single binary** - No external dependencies at runtime
 
 ## Features
 
 - 📊 **Multiple chart types**: Bar, Line, Scatter, and Area charts
 - 🖥️ **Browser-based rendering**: Charts open in your default web browser
 - 🚀 **Simple SQL interface**: Visualize data directly from SQL queries
 - 💻 **Cross-platform**: Works on macOS, Linux, and Windows
-- 🔒 **Fully offline**: No internet connection required
+- 🌐 **Internet required**: Initial chart rendering requires internet connection (Plotly.js loads from CDN, then cached by browser)
 - ✨ **Interactive**: Zoom, pan, hover, and export capabilities
 
 ## Installation
@@ -35,8 +35,6 @@ INSTALL miniplot FROM community;
 LOAD miniplot;
 ```
 
-````
-
 That's it! No additional setup required.
 
 ## Usage
@@ -100,6 +98,22 @@ SELECT bar_chart(
 ) FROM sales;
 ```
 
+### Working with CSV Files
+
+```sql
+-- Load CSV data
+CREATE TABLE stocks AS
+SELECT * FROM read_csv_auto('stocks.csv');
+
+-- Visualize stock prices
+SELECT line_chart(
+    list(CAST(date AS VARCHAR) ORDER BY date),
+    list(price ORDER BY date),
+    'Stock Price Trend'
+)
+FROM stocks;
+```
+
 ## How It Works
 
 ```
@@ -108,30 +122,11 @@ SQL Query → Data Extraction → HTML Generation → Browser Opens → Interact
 
 1. **SQL Query** → Execute chart function with your data
 2. **Data Extraction** → Extension processes your data
-3. **HTML Generation** → Creates HTML with embedded Plotly.js
+3. **HTML Generation** → Creates HTML with Plotly.js CDN link
 4. **Browser Opens** → Opens in your default browser
 5. **Interactive Chart** → Zoom, pan, hover, export
 
-## Why Miniplot?
-
-### vs pandas + matplotlib
-
-| Feature               | miniplot      | pandas + matplotlib   |
-| --------------------- | ------------- | --------------------- |
-| **Language**          | SQL only      | Python required       |
-| **Setup**             | 1 SQL command | pip install × 2       |
-| **Context Switching** | None          | Query → Python → Plot |
-| **Interactive**       | ✅ Full       | ❌ Static images      |
-| **Data Size**         | Unlimited     | Memory limited        |
-
-### vs Jupyter + Plotly
-
-| Feature          | miniplot       | Jupyter + Plotly  |
-| ---------------- | -------------- | ----------------- |
-| **Environment**  | Any SQL client | Browser + Server  |
-| **Deployment**   | Single binary  | Python + packages |
-| **Startup Time** | Instant        | Notebook loading  |
-| **Sharing**      | SQL query      | Notebook file     |
+**Note**: Charts require internet connection on first use. After initial load, Plotly.js is cached by your browser and works offline.
 
 ## Architecture
 
@@ -144,16 +139,17 @@ SQL Query → Data Extraction → HTML Generation → Browser Opens → Interact
 └────────────┬────────────────────┘
              ↓
 ┌─────────────────────────────────┐
-│   Extension (9.2MB)             │
-│   - C++ interface               │
-│   - Rust HTML generator         │
-│   - Plotly.js embedded          │
+│   Extension (C++)               │
+│   - Data extraction             │
+│   - HTML generation             │
+│   - Plotly.js CDN link          │
 └────────────┬────────────────────┘
              ↓
 ┌─────────────────────────────────┐
 │   Browser Opens                 │
+│   - Loads Plotly.js from CDN    │
 │   - Interactive chart           │
-│   - No internet needed          │
+│   - Caches for offline use      │
 └─────────────────────────────────┘
 ```
 
@@ -178,6 +174,12 @@ All charts include:
 - 💾 **Export** - Download as PNG image
 - 🔄 **Reset** - Double-click to reset view
 
+## Requirements
+
+- **Internet connection**: Required for first-time chart rendering (Plotly.js loads from CDN)
+- **Browser**: Any modern web browser (Chrome, Firefox, Safari, Edge)
+- After initial use, charts work offline (browser caches Plotly.js)
+
 ## License
 
 MIT License - see [LICENSE](LICENSE) file
@@ -186,12 +188,14 @@ MIT License - see [LICENSE](LICENSE) file
 
 - Built with [DuckDB](https://duckdb.org/)
 - Powered by [Plotly.js](https://plotly.com/javascript/)
-- Written in [Rust](https://www.rust-lang.org/) and C++
+- Written in C++
 
 ## Links
 
 - [Community Extensions](https://github.com/duckdb/community-extensions)
 - [Issue Tracker](https://github.com/nkwork9999/miniplot/issues)
 - [DuckDB Documentation](https://duckdb.org/docs/)
 
-````
+```
+
+```
diff --git a/build.sh b/build.sh
@@ -1,29 +1,23 @@
 #!/bin/bash
 set -e
 
-echo "=== Building Miniplot Extension (Offline Plotly.js) ==="
+echo "=== Building Miniplot Extension (100% Offline) ==="
 
-# Plotly.jsの存在確認
-if [ ! -f "chart_viewer/assets/plotly.min.js" ]; then
-    echo "Error: plotly.min.js not found!"
-    echo "Please download it first:"
-    echo "  mkdir -p chart_viewer/assets"
-    echo "  curl -o chart_viewer/assets/plotly.min.js https://cdn.plot.ly/plotly-2.27.0.min.js"
-    exit 1
-fi
-
-echo "Step 1: Building Rust library..."
-cd chart_viewer
-cargo build --release --lib
-cd ..
+# Step 1: Plotly.jsを埋め込み
+echo ""
+echo "Step 1: Embedding Plotly.js..."
+bash scripts/embed_plotly.sh  # chmod不要で直接bashで実行
 
+# Step 2: DuckDBエクステンションをビルド
+echo ""
 echo "Step 2: Building DuckDB extension..."
 make release
 
 echo ""
 echo "=== Build Complete ==="
-echo "Extension: build/release/extension/miniplot/miniplot.duckdb_extension"
+echo ""
 ls -lh build/release/extension/miniplot/miniplot.duckdb_extension
-
 echo ""
-echo "Plotly.js embedded: $(ls -lh chart_viewer/assets/plotly.min.js | awk '{print $5}')"
+echo "✓ Extension built successfully"
+echo "✓ 100% offline (no CDN dependencies)"
+echo "✓ Plotly.js embedded (~3MB)"
diff --git a/chart_viewer/Cargo.lock b/chart_viewer/Cargo.lock
diff --git a/chart_viewer/Cargo.toml b/chart_viewer/Cargo.toml
diff --git a/chart_viewer/assets/plotly.min.js b/chart_viewer/assets/plotly.min.js