#! /usr/bin/env node

(function(){

    var fs = require("fs");
    var vm = require("vm");
    var sys = require("util");

    function load_global(file) {
        try {
            var code = fs.readFileSync(file, "utf8");
            return vm.runInThisContext(code, file);
        } catch(ex) {
            sys.debug("ERROR in file: " + file + " / " + ex);
            process.exit(1);
        }
    };

    load_global("../lib/utils.js");
    load_global("../lib/ast.js");
    load_global("../lib/parse.js");
    load_global("../lib/scope.js");
    load_global("../lib/output.js");

    ///

    var filename = process.argv[2];
    console.time("parse");
    var ast = parse(fs.readFileSync(filename, "utf8"));
    console.timeEnd("parse");

    var stream = OutputStream({ beautify: true });
    console.time("figure_out_scope");
    ast.figure_out_scope();
    console.timeEnd("figure_out_scope");
    console.time("generate");
    ast.print(stream);
    console.timeEnd("generate");
    //sys.puts(stream.get());


    var w = new TreeWalker(function(node, descend){
        if (node.start) {
            console.log(node.TYPE + " [" + node.start.line + ":" + node.start.col + "]");
        } else {
            console.log(node.TYPE + " [NO START]");
        }
        if (node instanceof AST_Scope) {
            if (node.uses_eval) console.log("!!! uses eval");
            if (node.uses_with) console.log("!!! uses with");
        }
        if (node instanceof AST_SymbolDeclaration) {
            console.log("--- declaration " + node.name + (node.global ? " [global]" : ""));
        }
        else if (node instanceof AST_SymbolRef) {
            console.log("--- reference " + node.name + " to " + (node.symbol ? node.symbol.name : "global"));
            if (node.symbol) {
                console.log("    declaration at: " + node.symbol.start.line + ":" + node.symbol.start.col);
            }
        }
    });
    ast._walk(w);

})();