bin

#!/usr/bin/env node

var core = require('canner-core');
var genghis = require('genghis');
var argv = require('minimist')(process.argv.slice(2));

var fs = require('fs-extra');
var path = require('path');
var root = process.cwd();

var load = argv._[0];
var date = argv._[1];
var time = argv._[2];
var project = argv._[3];

var w = argv.w;

var twstatBlog = {};

twstatBlog.build = function(load, w) {

  if(load)
    var root = path.resolve(process.cwd(), load);

  var blogPage = require(path.join(root, 'page.js'));
  var blogPosts = require(path.join(root, 'blog.json'));

  var blog_setting_path = path.join(root, 'blog.json');
  var post_path = path.resolve(blogPosts.post_settings.path);

  if(!w) {

    // clear blog posts
    core.build(blogPage, {
      cwd: root,
      output: root
    })
    .then(function() {
      genghis.build(blog_setting_path)
      .catch(function(err) {
        console.error(err)
      })
      .done();
    })
    .catch(function(err) {
      console.error(err);
    })
    .done();

  }else {

    // clear blog posts
    fs.removeSync(post_path);

    return core.watch(blogPage, {
      cwd: root,
      serve: root,
      output: root,
      reloader: function() {
        return blogPage;
      },
      changeFilter: function (row, f, curr, prev) {
        if(path.extname(f) === '.html') {
          return (f === path.resolve(root, row.layout));
        }else if (path.extname(f) === '.md') {
          return (f === path.resolve(root, row.data.content));
        }
      }
    })
    .then(function() {
      return genghis.build(blog_setting_path, true)
        .catch(function(err) {
          console.error(err);
        })
        .done();
    })
    .catch(function(err) {
      console.error(err);
    })
  }
}

twstatBlog.init = function(load, date, time, project) {
  var date_reg = /(\d{4}\/\d{2}\/\d{2})/g;
  var time_reg = /(\d{2}):(\d{2}):(\d{2})/g;

  var parse_d = date_reg.exec(date);
  var parse_t = time_reg.exec(time);

  if(parse_d && parse_t) {

    var list_path = path.join(process.cwd(), 'blog.json')
    var lists = require(list_path);

    lists.posts.unshift({
      "title": project,
      "date": date + " " + time,
      "categories": [""],
      "tags": [""],
      "cover": "/assets/article_images/" + date + "/" + project + "-cover.png",
      "content": "./posts/" + date + "-" + project + ".md",
      "url_name": project,
      "author": "taiwanstat"
    })

    var new_file = path.join(process.cwd(), "./posts/" + date.replace(/\//g, '-') + "-" + project + ".md");

    if(!fs.existsSync(new_file))
      fs.copy(path.join(__dirname, 'init.md'), new_file, function(err) {if(err) return console.error(err)})

    console.log('Init your project: ' + new_file);
    fs.writeFileSync(list_path, JSON.stringify(lists, null, 2))
    console.log('Add your project to blog.json: ' + list_path)

  }else if(!parse_d && parse_t) {
    throw new Error('Please check your date strings, format should be like "2015/08/03"')
  }else if(parse_d && !parse_t) {
    throw new Error('Please check your time strings, format should be like "22:07:39"')
  }else if(!parse_d && !parse_t) {
    throw new Error('Please check your date strings, format should be like "2015/08/03", and time should be like "22:07:39"')
  }
}

if(load === 'init' && date && time && project) {
  // init project
  twstatBlog.init(load, date, time, project)
}else if (load === 'init' && (!project || !date || !time)) {
  throw new Error("Usage: twstatBlog init <YYYY/MM/DD> <hh:mm:ss> <project name>");
}else {
  if(load && w){
    twstatBlog.build(load, w);
  }else if(load && !w){
    twstatBlog.build(load);
  }else if(!load && w) {
    twstatBlog.build('./', w)
  }else if(!load && !w) {
    twstatBlog.build('./')
  }
}