#!/bin/bash
# Example post-commit hook for ThetaCog — async LLM cognitive ingestion.
# 
# This script runs AFTER the git commit has succeeded. It is entirely decoupled
# from the hardware/PMU validation layer (which happens independently).
# Its job is to feed the committed changes to your LLM CLI of choice (Gemini or Claude)
# for async analysis, ghost-reading, or punch-list generation.

# Find the files changed in the latest commit
LATEST_SHA=$(git rev-parse HEAD 2>/dev/null || true)
[ -z "$LATEST_SHA" ] && exit 0

CHANGED_FILES=$(git diff-tree --name-only --no-commit-id -r "$LATEST_SHA" 2>/dev/null || true)
CONTENT=$(echo "$CHANGED_FILES" | grep -E '\.(mdx|md|ts|js|tsx)$' || true)

[ -z "$CONTENT" ] && exit 0

# Set up logging directory
LOG_DIR=".thetacog/cache"
mkdir -p "$LOG_DIR"
LOG_FILE="$LOG_DIR/post-commit-${LATEST_SHA:0:8}.log"

echo "🤖 ThetaCog async ingest dispatched. sha=${LATEST_SHA:0:8}. Logs in $LOG_FILE"

# Determine the LLM CLI to use based on POSTCOMMIT_MODE, default to 'gemini'
MODE="${POSTCOMMIT_MODE:-gemini}"

# Fire-and-forget subshell so we don't block the user's terminal
(
    exec > "$LOG_FILE" 2>&1
    echo "Running in $MODE mode for $LATEST_SHA"

    if [ "$MODE" = "gemini" ]; then
        # Example using Gemini CLI
        if command -v gemini >/dev/null 2>&1; then
            echo "Prompting Gemini..."
            gemini prompt "Review these changed files and extract 3 cognitive next steps or leverage actions: $(echo $CONTENT)"
        else
            echo "⚠ Gemini CLI not found on PATH."
        fi

    elif [ "$MODE" = "claude" ]; then
        # Example using Claude Code CLI
        if command -v claude >/dev/null 2>&1; then
            echo "Prompting Claude..."
            claude -p "Analyze the following modified files and summarize any architectural drift: $(echo $CONTENT)"
        else
            echo "⚠ Claude CLI not found on PATH."
        fi
    fi

) &
disown 2>/dev/null || true

exit 0