#!/bin/bash
# install.sh — Link claude-meta config into ~/.claude/
set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
REPO_ROOT="$(dirname "$SCRIPT_DIR")"
SOURCE_DIR="$REPO_ROOT/home-claude"
CLAUDE_DIR="$HOME/.claude"

# Verify source exists
if [ ! -d "$SOURCE_DIR" ]; then
    echo "ERROR: home-claude/ not found at $SOURCE_DIR"
    exit 1
fi

# Ensure ~/.claude/ is a real directory
if [ -L "$CLAUDE_DIR" ]; then
    echo "ERROR: ~/.claude/ is a symlink. It must be a real directory."
    echo "Claude Code Bug #764: symlinked ~/.claude/ breaks file detection."
    exit 1
fi

mkdir -p "$CLAUDE_DIR"

echo "Installing claude-meta config..."
echo "  Source: $SOURCE_DIR"
echo "  Target: $CLAUDE_DIR"
echo ""

# File symlinks
for file in CLAUDE.md settings.json; do
    src="$SOURCE_DIR/$file"
    dst="$CLAUDE_DIR/$file"

    [ ! -f "$src" ] && echo "  SKIP: $file" && continue

    # Remove existing
    [ -e "$dst" ] || [ -L "$dst" ] && rm -f "$dst"

    ln -s "$src" "$dst"
    echo "  SYMLINK: $file -> $src"
done

# Directory symlinks
for dir in skills rules; do
    src="$SOURCE_DIR/$dir"
    dst="$CLAUDE_DIR/$dir"

    [ ! -d "$src" ] && echo "  SKIP: $dir/" && continue

    # Remove existing
    if [ -L "$dst" ]; then
        rm "$dst"
    elif [ -d "$dst" ]; then
        rm -rf "$dst"
    fi

    ln -s "$src" "$dst"
    echo "  SYMLINK: $dir/ -> $src"
done

# Validation
echo ""
echo "Validating..."

for file in CLAUDE.md settings.json; do
    dst="$CLAUDE_DIR/$file"
    if [ -f "$dst" ] && [ -s "$dst" ]; then
        echo "  OK: $file readable"
    else
        echo "  FAIL: $file"
    fi
done

for dir in skills rules; do
    dst="$CLAUDE_DIR/$dir"
    if [ -d "$dst" ]; then
        count=$(find "$dst" -type f | wc -l)
        echo "  OK: $dir/ ($count files)"
    else
        echo "  FAIL: $dir/"
    fi
done

echo ""
echo "Installation complete!"