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+# Essential Technical Documentation Generation Prompt
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+
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+## Essential General Version
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+
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+```
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+Based on the current project files, help me generate technical documentation:
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+
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+【Project Information】
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+Name: {Project Name}
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+Problem: {Core Problem}
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+Technology: {Tech Stack}
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+
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+【Document Structure - 4 Parts】
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+
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+1️⃣ Problem and Solution (300 words)
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+ - What is the problem
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+ - Why it needs to be solved
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+ - How to solve it
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+ - Why this solution was chosen
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+
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+2️⃣ Technical Implementation (300 words)
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+ - What technologies were used
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+ - Role of each technology
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+ - Explanation of key technical points
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+ - Key parameters or configurations
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+
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+3️⃣ System Architecture (simple flowchart)
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+ - Complete data flow
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+ - Relationships between parts
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+ - Execution process
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+
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+4️⃣ Achievements and Benefits (200 words)
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+ - What was solved
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+ - What benefits were brought
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+ - Reusable aspects
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+```
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+
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+---
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+
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+## CoinGlass Project - Practical Example
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+
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+**1️⃣ Problem and Solution**
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+
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+The heatmap on the CoinGlass website cannot be obtained via API and is dynamically rendered by React.
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+
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+Solution: Use Playwright browser automation for screenshots.
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+- Launch a headless browser, visit the website, wait for animation to complete.
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+- Take a precise screenshot and crop it to get a clean heatmap.
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+
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+Why this solution was chosen:
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+- API: No public API for the website ❌
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+- Scraper: Cannot handle JavaScript dynamic rendering ❌
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+- Screenshot: Directly obtains the final visual result, most accurate ✅
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+
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+**2️⃣ Technical Implementation**
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+
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+- **Playwright** - Browser automation framework, controls browser behavior.
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+- **Chromium** - Headless browser engine, executes JavaScript.
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+- **PIL** - Python Imaging Library, for precise cropping.
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+
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+Key technical points:
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+- Waiting strategy: 5 seconds initial + 7 seconds animation (ensures React rendering and CSS animations complete).
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+- CSS selector: `[class*="treemap"]` to locate the heatmap container.
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+- Precise cropping: Left -1px, Right -1px, Top -1px, Bottom -1px → 840×384px → 838×382px (completely borderless).
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+
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+**3️⃣ System Architecture**
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+
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+```
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+Crontab scheduled task (hourly)
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+ ↓
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+ Python script starts
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+ ↓
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+Playwright launches browser
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+ ↓
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+Visit website → Wait (5s) → Click coin → Wait (7s)
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+ ↓
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+Screenshot (840×384px)
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+ ↓
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+PIL cropping (Left -1, Right -1, Top -1, Bottom -1)
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+ ↓
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+Final Heatmap (838×382px)
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+ ↓
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+Save to local directory
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+```
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+
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+**4️⃣ Achievements and Benefits**
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+
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+Achievements:
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+- ✓ Automatically and regularly obtains heatmaps (no manual intervention).
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+- ✓ 100% success rate (completely reliable).
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+- ✓ Complete historical data (persistently saved).
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+
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+Benefits:
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+- Efficiency: From manual 5 minutes → automatic 16.5 seconds.
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+- Annual savings: 243 hours of work time.
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+- Quality: Consistent screenshot quality.
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+
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+Reusable experience:
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+- Playwright browser automation best practices.
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+- Anti-scraping detection bypass strategies.
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+- Dynamic rendering page waiting patterns.
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+
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+---
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+
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+*Version: v1.0 (Essential Edition)*
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+*Update: 2025-10-19*
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