#!/bin/bash
# ═══════════════════════════════════════════════════════════════════════════════
# UPDATE VERSION TO v0.4.0 AND PREPARE RELEASE
# ═══════════════════════════════════════════════════════════════════════════════

set -e

echo "═══════════════════════════════════════════════════════════════════════════════"
echo "              PREPARE v0.4.0 RELEASE"
echo "═══════════════════════════════════════════════════════════════════════════════"
echo ""

# Check we're in the right place
if [ ! -f "Cargo.toml" ]; then
    echo "Error: Run from univrs-dol root directory"
    exit 1
fi

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 1: Update Cargo.toml version
# ─────────────────────────────────────────────────────────────────────────────────
echo "Step 1: Updating Cargo.toml version..."

CURRENT_VERSION=$(grep '^version = ' Cargo.toml | head -1 | sed 's/version = "\(.*\)"/\1/')
echo "  Current version: $CURRENT_VERSION"

if [ "$CURRENT_VERSION" = "0.4.0" ]; then
    echo "  ✅ Already at v0.4.0"
else
    sed -i 's/^version = ".*"/version = "0.4.0"/' Cargo.toml
    echo "  ✅ Updated to v0.4.0"
fi

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 2: Update Cargo.lock
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 2: Updating Cargo.lock..."
cargo update --workspace
echo "  ✅ Cargo.lock updated"

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 3: Verify compilation
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 3: Verifying compilation..."
if cargo check 2>&1 | grep -q "^error\["; then
    echo "  ❌ Compilation errors!"
    exit 1
fi
echo "  ✅ Compiles cleanly"

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 4: Run tests
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 4: Running tests..."
if cargo test --lib --quiet 2>&1 | grep -q "FAILED"; then
    echo "  ❌ Tests failed!"
    exit 1
fi
LIB_TESTS=$(cargo test --lib 2>&1 | grep "passed" | tail -1)
echo "  ✅ $LIB_TESTS"

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 5: Copy CI workflow
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 5: Setting up CI workflow..."
mkdir -p .github/workflows
if [ -f "$HOME/Downloads/hir-ci.yml" ]; then
    cp "$HOME/Downloads/hir-ci.yml" .github/workflows/
    echo "  ✅ Copied hir-ci.yml"
elif [ -f "hir-ci.yml" ]; then
    cp hir-ci.yml .github/workflows/
    echo "  ✅ Copied hir-ci.yml"
else
    echo "  ⚠️ hir-ci.yml not found - copy manually"
fi

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 6: Update claude-flow task
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 6: Updating claude-flow task..."
mkdir -p .flows
if [ -f "$HOME/Downloads/claude-flow-hir-development-v0.4.0.yaml" ]; then
    cp "$HOME/Downloads/claude-flow-hir-development-v0.4.0.yaml" .flows/
    echo "  ✅ Copied updated task file"
else
    echo "  ⚠️ Task file not found - copy manually"
fi

# ─────────────────────────────────────────────────────────────────────────────────
# STEP 7: Commit version bump
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "Step 7: Committing version bump..."
git add Cargo.toml Cargo.lock .github/workflows/ .flows/
git commit -m "chore: bump version to v0.4.0

- Update Cargo.toml version from $CURRENT_VERSION to 0.4.0
- Add HIR CI workflow (.github/workflows/hir-ci.yml)
- Update claude-flow task file with v0.4.0 status

HIR v0.4.0 Release includes:
- 30+ canonical HIR types (554 lines)
- HIR validation (1403 lines)
- Rust codegen (762 lines)
- Design specification (1054 lines)
- 365 lib tests + 50 doc tests passing
- 10/10 DOL self-validation"

echo "  ✅ Committed"

# ─────────────────────────────────────────────────────────────────────────────────
# SUMMARY
# ─────────────────────────────────────────────────────────────────────────────────
echo ""
echo "═══════════════════════════════════════════════════════════════════════════════"
echo "                              READY TO MERGE"
echo "═══════════════════════════════════════════════════════════════════════════════"
echo ""
echo "Version: v0.4.0"
echo "Branch:  $(git branch --show-current)"
echo "Commits: $(git rev-list main..HEAD --count) ahead of main"
echo ""
echo "Next steps:"
echo ""
echo "  # Run completion check"
echo "  ./scripts/hir-completion-check.sh"
echo ""
echo "  # Merge to main"
echo "  git checkout main"
echo "  git merge --no-ff feature/hir-clean-v0.4.0 -m 'feat(hir): HIR v0.4.0 implementation'"
echo ""
echo "  # Tag release"
echo "  git tag -a v0.4.0 -m 'HIR v0.4.0 - Complete implementation'"
echo ""
echo "  # Push"
echo "  git push origin main --tags"
echo ""