#!/usr/bin/env ruby
# encoding: UTF-8
# frozen_string_literal: true

# provision-project-store — deterministic CLI over StoreProvisioning (intent 61).
#
# Creates a registered project's store at ~/.plastic/projects/{slug}/store: it
# makes the store directory, then writes, only if missing, .gitkeep, INDEX.md,
# and project.yml. It is pure filesystem and idempotent, so re-running never
# clobbers existing files and performs no qmd mutation. The project must already
# be registered in projects.yml; an unregistered slug exits non-zero and creates
# nothing.
#
# Usage:
#   provision-project-store <slug> [--home <path>] [--package-root <path>]
#
# Exit codes: 0 (store provisioned), 1 (unregistered slug / error on stderr),
# 2 (usage). --home <path> overrides the Plastic home (default: ~/.plastic).
# --package-root <path> overrides where templates/ resolves from (default:
# StoreProvisioning::PACKAGE_ROOT, the repo root); mainly for hermetic tests.

require_relative "lib/store_provisioning"

def plastic_home(args)
  if (i = args.index("--home")) && args[i + 1]
    File.expand_path(args[i + 1])
  else
    File.expand_path(ENV["PLASTIC_HOME"] || "~/.plastic")
  end
end

def package_root(args)
  if (i = args.index("--package-root")) && args[i + 1]
    File.expand_path(args[i + 1])
  else
    StoreProvisioning::PACKAGE_ROOT
  end
end

home = plastic_home(ARGV)
root = package_root(ARGV)

# First positional arg, skipping any flag and the value that follows --home
# or --package-root.
home_value_index = (i = ARGV.index("--home")) ? i + 1 : nil
package_root_value_index = (i = ARGV.index("--package-root")) ? i + 1 : nil
slug_index = ARGV.each_index.find do |idx|
  arg = ARGV[idx]
  !arg.start_with?("--") && idx != home_value_index && idx != package_root_value_index
end
slug = slug_index && ARGV[slug_index]

if slug.nil?
  warn "usage: provision-project-store <slug> [--home <path>] [--package-root <path>]"
  exit 2
end

result = StoreProvisioning.provision(slug, plastic_home: home, package_root: root)

if result[:ok]
  puts "OK: #{result[:store_dir]}"
  exit 0
end

warn result[:error]
exit 1