.startup.sh

#!/bin/bash
# File: ~/.custom_startup.sh
# Description: Custom startup script for EJ Fox's terminal, providing a personalized MOTD.

get_top_tasks() {
    things-cli today | head -n 3
}

get_last_repos() {
    find ~/code -maxdepth 1 -type d -exec sh -c '
        for dir do
            if [ -d "$dir/.git" ]; then
                printf "%s\t%s\n" "$(stat -f "%m" "$dir")" "⌥ $(basename "$dir" | iconv -f utf-8 -t utf-8 -c)"
            fi
        done
    ' sh {} + | sort -rn | head -n 3 | cut -f2-
}

get_last_obsidian_notes() {
    local obsidian_note_root="${HOME}/Library/Mobile Documents/iCloud~md~obsidian/Documents/ejfox"
    find "${obsidian_note_root}" -type f -mtime -1 -not -path '*/\.*' -print0 | while IFS= read -r -d '' file; do
        # Get relative path from obsidian root
        local rel_path="${file#$obsidian_note_root/}"
        printf "※ %s\n" "$rel_path"
    done | head -n 3
}

list_tmux_sessions() {
    tmux list-sessions -F "#{session_name}:#{session_created}:#{session_created_string}" | while IFS=: read -r session_name session_created session_created_string; do
        now=$(date +%s)
        elapsed_seconds=$((now - session_created))
        elapsed_time=$(printf '%dd:%dh:%dm:%ds' $((elapsed_seconds/86400)) $((elapsed_seconds%86400/3600)) $((elapsed_seconds%3600/60)) $((elapsed_seconds%60)))
        printf "Session: %-15s | %-25s\n" "$session_name" "$session_created_string ($elapsed_time)"
    done
}

list_unsynced_repos() {
    node ~/code/git-status-dash/index.mjs -d ~/code/
}

fetch_mastodon_posts() {
    local cache_file="/tmp/mastodon_cache.txt"
    if [[ ! -f $cache_file || $(find "$cache_file" -mmin +60) ]]; then
        curl -s https://ejfox-mastodon.web.val.run | jq -r '.[].content' | iconv -f utf-8 -t utf-8 -c | tr -d '\n' | head -c 2048 > "$cache_file"
    fi
    cat "$cache_file"
}


get_random_alias() {
    grep "^alias" ~/.zshrc | sort -R | head -n 1 | cut -d'=' -f1 | awk '{print $2}'
}

generate_alias_hint() {
    local alias=$1
    local recent_history=$(tail -n 100 ~/.zsh_history | cut -d ';' -f 2-)
    local all_aliases=$(grep "^alias" ~/.zshrc)
    local prompt="Here are all the user's aliases:
$all_aliases

Here are the last 100 commands from the user's history for context:
$recent_history

Generate a short video game style hint for the shell alias '$alias' as if the user has never heard of it before—include both the alias and what commands it runs. 'Hey, have you tried [X]? It's good for [Y]!' The hint should be concise, helpful, and slightly playful. Plain text only, we are in a shell. Respond with a single sentence hint, nothing else."

    echo "$prompt" | llm -m gpt-4o-mini -o max_tokens 128
}

get_current_weeknote() {
    local obsidian_note_root="${HOME}/Library/Mobile Documents/iCloud~md~obsidian/Documents/ejfox"
    local current_week=$(date +%V)
    local current_year=$(date +%Y)
    current_week=$(printf "%02d" $current_week)
    local weeknote_path="${obsidian_note_root}/week-notes/${current_year}-${current_week}.md"
    
    if [ -f "$weeknote_path" ]; then
        sed '/^---$/,/^---$/d' "$weeknote_path" | head -c 8000
    fi
}

main() {
    local today_tasks=$(get_top_tasks | iconv -f utf-8 -t utf-8 -c)
    local recent_repos=$(get_last_repos | iconv -f utf-8 -t utf-8 -c)
    local recent_obsidian_notes=$(get_last_obsidian_notes | iconv -f utf-8 -t utf-8 -c)
    local mastodon_posts=$(fetch_mastodon_posts | iconv -f utf-8 -t utf-8 -c)
    local random_alias=$(get_random_alias | iconv -f utf-8 -t utf-8 -c)
    local alias_hint=$(generate_alias_hint "$random_alias" | iconv -f utf-8 -t utf-8 -c)
    local recent_history=$(tail -n 24 ~/.zsh_history | cut -d ';' -f 2-) | iconv -f utf-8 -t utf-8 -c
    local current_weeknote=$(get_current_weeknote)

    list_unsynced_repos

    echo -e "\n[TODAY'S MISSION]"
    echo "$today_tasks"

    echo -e "\n[RECENTLY ACCESSED]"
    echo "$recent_repos"
    echo "$recent_obsidian_notes"

    echo -e "\n[TMUX SESSIONS]"
    list_tmux_sessions

    echo -e "\n[PROTIP]"
    echo "$alias_hint"

    echo -e "\n[SYSTEM READY]"

    local combined_data="
## Working Directory: 
$(pwd)

## This Week's Notes:
$current_weeknote

## Recent Mastodon Posts: 
$mastodon_posts

## Today's Tasks: 
$today_tasks

## Recent Repos: 
$recent_repos

## Terminal History:
$recent_history

Tmux Sessions:
$(list_tmux_sessions)

Current Time: $(date)"

    local prompt="Your user is EJ Fox, a hacker and journalist based in New York. You are the AI at the heart of his MacBook Pro. Please compose an 'MOTD' that will appear in the terminal when it boots. Try to keep lines relatively short. In a style that captures your unique voice and the spirit of Neal Stephenson, write a precise and descriptive narrative of the user information provided, reflecting on and summarizing the user's recent activities. Elegantly tie threads between the patterns. Relate the timestamped actions to the current time (be it morning or night). Highlight the things they might not even know connect their thoughts. Pick one thread to highlight. Keep it under a few sentences—with the wisdom of the I Ching subtly (never explicitly) woven in. Short but surprisingly meaningful and information-dense. Use only plain text. Do not use any code markup. Just send back the MOTD as it should appear to the user. Weave in the information you know about them. Keep lines short as this is displayed in a terminal.

$combined_data"

    echo "$prompt" | llm -m gpt-4o-mini -o max_tokens 600
}

main