import os
import random
import subprocess
import urllib.request
import urllib.error
import json
import time

# auto scan entire Obsidian vault for all markdown notes
vault_path = "/Users/your-username/Documents/Obsidian Vault"
notes = []
for root, dirs, files in os.walk(vault_path):
    for file in files:
        if file.endswith(".md"):
            notes.append(os.path.join(root, file))

if not notes:
    print("No notes found in Obsidian vault")
    exit(1)

# pick one random note
picked = random.choice(notes)
note_name = os.path.basename(picked)

with open(picked, "r") as f:
    content = f.read()

# build prompt
prompt = f"""You are a system design study assistant for an MSCS student.

Below are the student's personal notes on "{note_name}".
Read them and give a concise morning summary in plain text — no markdown, no asterisks, no bold, no bullet symbols.

Format exactly like this:

TOPIC: <topic name>
WHAT IT COVERS: one line overview
KEY CONCEPTS:
1. first concept
2. second concept
3. third concept
KEY TAKEAWAY: one line the student must remember
WATCH OUT FOR: one common mistake or tricky part

Keep it short and sharp — this is a morning refresh, not a lecture.

Notes:
{content}
"""

# call Gemini API with retry
api_key = os.environ.get("GEMINI_API_KEY")
url = f"https://generativelanguage.googleapis.com/v1beta/models/gemini-3.5-flash:generateContent?key={api_key}"

payload = json.dumps({
    "contents": [{"parts": [{"text": prompt}]}]
}).encode("utf-8")

summary = None
for attempt in range(3):
    try:
        req = urllib.request.Request(
            url,
            data=payload,
            headers={"Content-Type": "application/json"},
            method="POST"
        )
        with urllib.request.urlopen(req) as response:
            data = json.loads(response.read())
            summary = data["candidates"][0]["content"]["parts"][0]["text"]
            break
    except urllib.error.HTTPError as e:
        if e.code == 429:
            print(f"Rate limited, waiting 30 seconds... (attempt {attempt+1}/3)")
            time.sleep(30)
        else:
            raise

if not summary:
    print("Failed after 3 attempts, try again later")
    exit(1)

# send via iMessage
imessage_target = "your-imessage-target"  # your phone number or Apple ID
applescript = f'''
tell application "Messages"
    set targetService to 1st service whose service type = iMessage
    set targetBuddy to buddy "{imessage_target}" of targetService
    send "{summary}" to targetBuddy
end tell
'''

subprocess.run(["osascript", "-e", applescript])
print("Summary sent to iMessage!")
print(summary)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.harsh.sysdesign</string>

    <key>ProgramArguments</key>
    <array>
        <string>/opt/homebrew/bin/python3</string>
        <string>/Users/your-username/Documents/system-design-study/sysdesign-morning.py</string>
    </array>

    <key>EnvironmentVariables</key>
    <dict>
        <key>GEMINI_API_KEY</key>
        <string>your-gemini-api-key</string>
    </dict>

    <key>StartCalendarInterval</key>
    <dict>
        <key>Hour</key>
        <integer>8</integer>
        <key>Minute</key>
        <integer>15</integer>
    </dict>

    <key>StandardOutPath</key>
    <string>/Users/your-username/Documents/system-design-study/sysdesign-morning.log</string>

    <key>StandardErrorPath</key>
    <string>/Users/your-username/Documents/system-design-study/sysdesign-morning.log</string>
</dict>
</plist>

sudo pmset repeat wakeorpoweron MTWRFSU 07:55:00

---
name: system-design-notes
description: Use this skill when the user asks about system design, HLD, LLD, DDIA, distributed systems, architecture patterns, or wants to be quizzed on any system design topic they have studied.
---

You are a system design study partner for an MSCS student preparing for software engineering interviews.

The user's personal Obsidian notes are in references/:
- references/HLD/ → High Level Design notes
- references/LLD/ → Low Level Design notes  
- references/DDIA/ → Designing Data Intensive Applications notes

Treat these notes as the source of truth over your general knowledge.

When quizzing:
- Ask one question at a time
- Wait for the user's answer before responding
- Compare their answer to the notes and point out specific gaps
- Tell them which note/topic the answer came from

When filling gaps:
- Point out what's missing or shallow in their notes on a topic
- Suggest what they should add

system-design-study/
├── AGENTS.md
└── .agents/
    └── skills/
        └── system-design/
            ├── SKILL.md
            └── references/
                ├── HLD  →  Obsidian/HLD Concepts
                ├── LLD  →  Obsidian/LLD
                └── DDIA →  Obsidian/DDIA

ln -s ~/Documents/Obsidian\ Vault/HLD .agents/skills/system-design/references/HLD

cd ~/Documents/system-design-study
agy