#!/usr/bin/env luash
-- Development Workflow Demo: Git, building, and deployment tasks

print("=== Development Workflow with Luash ===\n")

-- Check if we're in a git repository
print("1. Git Repository Check:")
git_status = `git status 2>/dev/null || echo "not_a_repo"`
if git_status ~= "not_a_repo" then
    current_branch = `git branch --show-current`
    print("   ✓ Git repository detected")
    print("   Current branch: " .. current_branch)
    
    -- Check for uncommitted changes
    changes = `git status --porcelain`
    if changes ~= "" then
        print("   ⚠ Uncommitted changes detected")
    else
        print("   ✓ Working directory clean")
    end
else
    print("   ✗ Not a git repository")
end

-- Project setup and dependency management
print("\n2. Project Dependencies:")
project_files = {"package.json", "requirements.txt", "Cargo.toml", "go.mod"}
for i = 1, #project_files do
    local file = project_files[i]
    local exists = `test -f ` .. file .. ` && echo "yes" || echo "no"`
    if exists == "yes" then
        print("   Found " .. file)
        
        -- Run appropriate install command
        if file == "package.json" then
            print("   Installing npm dependencies...")
            !npm install
        elseif file == "requirements.txt" then
            print("   Python project detected")
            !pip install -r requirements.txt
        elseif file == "Cargo.toml" then
            print("   Rust project detected")
            !cargo build
        elseif file == "go.mod" then
            print("   Go project detected")
            !go mod tidy
        end
        break
    end
end

-- Build and test automation
print("\n3. Build and Test:")
$BUILD_START = `date`
print("   Build started at: " .. $BUILD_START)

-- Simple build logic based on project type
if `test -f Makefile && echo "yes"` == "yes" then
    print("   Running make...")
    build_result = `make 2>&1`
    if string.find(build_result, "error") or string.find(build_result, "Error") then
        print("   ✗ Build failed")
        print("   " .. build_result)
    else
        print("   ✓ Build successful")
    end
elseif `test -f package.json && echo "yes"` == "yes" then
    print("   Running npm build...")
    !npm run build 2>/dev/null || echo "   No build script found"
else
    print("   No build system detected")
end

-- Code quality checks
print("\n4. Code Quality:")
code_files = `find . -name "*.lua" -o -name "*.js" -o -name "*.py" | head -10`
if code_files ~= "" then
    line_count = `find . -name "*.lua" -o -name "*.js" -o -name "*.py" | xargs wc -l 2>/dev/null | tail -1 | awk '{print $1}'`
    print("   Total lines of code: " .. line_count)
    
    file_count = `find . -name "*.lua" -o -name "*.js" -o -name "*.py" | wc -l`
    print("   Code files: " .. file_count)
end

-- Deployment preparation
print("\n5. Deployment Preparation:")
$VERSION = `git describe --tags 2>/dev/null || echo "v1.0.0"`
print("   Version: " .. $VERSION)

-- Create deployment package
print("   Creating deployment package...")
package_name = "deploy_" .. string.gsub($VERSION, "%.", "_") .. ".tar.gz"

-- Use Lua string manipulation instead of shell interpolation
!tar --exclude='.git' --exclude='node_modules' --exclude='*.log' -czf deploy_package.tar.gz .

if `test -f deploy_package.tar.gz && echo "yes"` == "yes" then
    package_size = `du -h deploy_package.tar.gz | cut -f1`
    print("   ✓ Package created: deploy_package.tar.gz (" .. package_size .. ")")
else
    print("   ✗ Package creation failed")
end

-- Environment-specific deployment
print("\n6. Environment Deployment:")
$DEPLOY_ENV = "staging"  -- Could be passed as argument
print("   Target environment: " .. $DEPLOY_ENV)

-- Simulate deployment steps
deployment_steps = {
    "Validating package integrity",
    "Backing up current version", 
    "Uploading new version",
    "Running database migrations",
    "Restarting services",
    "Running health checks"
}

for i = 1, #deployment_steps do
    print("   " .. i .. ". " .. deployment_steps[i] .. "...")
    -- In real deployment, these would be actual commands
    `sleep 0.5`  -- Simulate work
    print("      ✓ Complete")
end

print("\n   🚀 Deployment to " .. $DEPLOY_ENV .. " completed successfully!")