#!pocket
## Copyright (c) 2020-2021 Thakee Nathees
## Copyright (c) 2021-2022 Pocketlang Contributors
## Distributed Under The MIT License

import lang
from path import dirname, join, normpath

ROOT_PATH = normpath(join(dirname(__file__), '..'))

REFERENCE_DIR = join(ROOT_PATH, 'docs/Reference/')
SIDEBAR_FILE = join(ROOT_PATH, 'docs/_sidebar.md')

sidebar = "\
* Getting Started
  * [Home](/)
  * [Language Manual](/GettingStarted/LanguageManual.md)

* Library Reference
"

def main()
  for module in lang.modules()
    ## Dummy module is for testing internals and will be
    ##removed soon so skip it.
    if module._name == 'dummy'
      continue
    end
    f = open(join(REFERENCE_DIR, module._name + '.md'), 'w')
    gen_module_docs(f, module)
    f.close()
  end
  
  f = open(SIDEBAR_FILE, 'w')
  f.write(sidebar)
  f.close()
  
end

## Write the [module]'s documentation content to the file [f].
def gen_module_docs(f, module)
  name = module._name
  sidebar += '  * [$name](/Reference/$name.md)\n'
  f.write('# $name\n')
  for global in module.globals()
  
    { ## Map as switch statement alternative.
      Null: fn end,
      Number: fn end,
      String: fn end,
      
      Closure : fn
        write_fn_doc(f, global)
      end,
      
      Class: fn
        write_cls_doc(f, global)
      end,
      
    } [global._class]()
  end
end

## Write the function's documentation to the file [f].
def write_fn_doc(f, func)
  f.write('\n')
  f.write('### ${func.name}\n')
  f.write('\n')
  i = func._docs.find('\n\n')
  symbol = func._docs[0..i-1]
  desc = func._docs[i+1..-1]
  f.write("```ruby\n$symbol\n```\n")
  f.write(desc)
  f.write('\n')
end

## Write the class's documentation to the file [f].
def write_cls_doc(f, cls)
  f.write('\n')
  f.write('## ${cls.name}\n')
  f.write('${cls._docs}\n')
  for method in cls.methods()
    if method.name == '_init'
      continue ## Constructor.
    end
    write_fn_doc(f, method)
  end
end


if _name == "@main"
  main()
end