var path = require('path');
var utils = require('bbhverse');
var any = utils.any;              
var Tasq = utils.Tasq
var statuslog = utils.Traq
var Traq = utils.Traq
Tasq.addlistener(statuslog.statuslog) 
var cli = require('./cliverse')
var nodeShellExec = cli.nodeShellExec;
var chalk = require('chalk')

// 'use strict';

// PB : TODO -- make sure folder context is proper coz we can now run elxr from anywhere.

// PB : TODO -- 
// runas bypass non elevated tasks when we request privelege
// runas message is always error needs to be fixed.
// runas wait needs to be parallelized.
// suppress elevation check error messages
// support runas lauched directly from shell.
// pass in environment in hta to shellexecute.

const { existsSync } = require('fs');
const fs = require('fs')

const cliargs = utils.cliargs;
const processedArgs = cliargs(process.argv.slice(2));
console.dir(processedArgs)
var globSync = require('glob').sync;

var path = require('path');
const { isMaster } = require('cluster');

var getCmd = (command, args, options)=>{
  return [command, args, Object.assign({
      inherit : true, shell: true, title : `${command} ` 
    }, options)
  ]
}

var getPullCmd = (repo)=>{
  // console.log(useGitPull)

  var pullCmd = [ gitInstallDir
    , ['-c', 'branch=`git rev-parse --abbrev-ref HEAD`;for i in `git remote`; do git pull $i $branch; done;']
    , { cwd : repo, title : 'pull all origins for ' + repo }]
  // var pullCmd = ['pullall', [], { cwd : repo }]
  if(useGitPull) pullCmd = ['git', ['pull'], {
    inherit : true, shell: true, 
    cwd : repo
    // , env: process.env
    , runas : processedArgs.runas
    , title : `git pull ${repo}`
  }]
  return pullCmd
}

var performPull = (repo) => {
  if(existsSync(repo)) {
    console.log('pulling ' + repo)
    return nodeShellExec.apply(null, getPullCmd(repo)).then(()=>{ 
        if(__isElevated) {
          fs.writeFileSync('run.log', ', ' + JSON.stringify({ repo, success:true}), {'flag':'a+'} )
        }
        else statuslog.statuslog(null, repo)
        return true;
      })
      .catch((e)=>{ 
        e.repo = repo;
        if(__isElevated) {
          fs.writeFileSync('run.log', ', ' + JSON.stringify(e), {'flag':'a+'} )
        }
        else statuslog.statuslog(e); console.error(e)
      }) 
  }
  else {
    console.log('cloning ' + repo)
    // PB : TODO -- detect if a clonable repo exists in currentGitAuthUser
    return nodeShellExec('git', ['clone', '-c', 'core.symlinks=true', defaultRepoServer + `/${defaultRepoOwner}/` + repo + '.git'],
    {
      inherit : true, shell: true, 
        env: process.env
      , runas : processedArgs.runas
    }).catch((e)=>{ 
      throw e;
    }).then(()=>{

      return nodeShellExec('git', ['config', '--replace-all' , 'core.symlinks', true],
      {
        inherit : true, shell: true, 
          env: process.env
        , cwd : repo
        , runas : processedArgs.runas
        , title : `git core.symlinks --replace-all true for ${defaultRepoServer + `/${defaultRepoOwner}/` + repo + '.git'}`
      })
      .then(()=>{
        if(__isElevated) {
          fs.writeFileSync('run.log', ', ' + JSON.stringify({ repo, success:true}), {'flag':'a+'} )
        }
        else statuslog.statuslog(null, repo)
      })
      .catch((e)=>{
        e.repo = repo;
        if(__isElevated) {
          fs.writeFileSync('run.log', ', ' + JSON.stringify(e), {'flag':'a+'} )
        }
        else statuslog.statuslog(e);
      })
    })
    .catch(e=>{ 
      e.repo = repo;
      if(__isElevated) {
        fs.writeFileSync('run.log', ', ' + JSON.stringify(e), {'flag':'a+'} )
      }
      else statuslog.statuslog(e);
    })
  }
}

// PB : TODO -- If we are run from an elevated shell it never moves forward and simply exits.
// -- Currently workaround is to always run from a non-elevated shell.
var __isElevated = null; // We assume non-Elevated until someone evaluates and sets this variable.
var isRunningElevated = ()=>{
    if(__isElevated === null) {
      return nodeShellExec( "fsutil", ["dirty", "query", "C:"], { 
        inherit : true
        // , shell: true
          , stdio: 'ignore'
          , env: process.env
          , title : `check privileged execution mode using "fsutil dirty query C:"`
      }).then((exitcode)=>{    
        console.log('Elevated')
        __isElevated = true;
        return true;
      }).catch(()=>{
        __isElevated = false;
        console.log('Not Elevated');
        return false;
      });
    }
    else return Promise.resolve(__isElevated);
}

// Default Config...
var repomanifest = {

  // Default is public server only.
  reposervers : [ 'https://git.bbh.org.in' ]

  // All public repos are by default available.
  , repos : [
    'setup'
    , 'elxr'
    , 'loopback-connector-mysql'
    , 'loopback-jsonapi-model-serializer'
    , 'loopback-component-jsonapi'
    , 'ember-service-worker'
    , 'ember-service-worker-asset-cache'
    , 'ember-service-worker-cache-fallback'
    , 'ember-service-worker-index'
    , 'ember-sw-client-route'
  ]

  , elevated : [ ]

  , exludeMergeRepos : {}
};

var currentGitAuthUser ; // nodeShellExec('git', ['config', 'user.email']) ... PB : TODO-- get the current gittea username 
var defaultRepoOwner = 'chess'; 
var elevatedRunasRepos = repomanifest.elevated
var gitRepos = repomanifest.repos

// grep -qxF 'alias elxr="node elxr/index.js"'  ~/.bash_profile || echo 'alias elxr="node elxr/index.js"' >> ~/.bash_profile


// nodeShellExec('echo', ['elxr'], { inherit : true}) //, {stdio: "inherit"}

var dbForLabel = function(label){
  var dbsForLabel = {
      devmysql : 'mysql'
    , development : 'mssql'
    , production : 'mssql'
  }
  return dbsForLabel[label] || 'mysql'
}

var gitInstallDir = "C:\\Program Files\\Git\\bin\\sh.exe"
// var gitInstallDir = "G:\\Installed\\Git\\bin\\sh.exe"
// Relevant git repos

var brandName = 'elixir';
// Runas windowshta clobbers and removes the NODE_ENV !!! We therefore pass it in.
var nodeenv = (process.env.NODE_ENV && process.env.NODE_ENV.trim())  || processedArgs.node_env || 'development'

// var repomanifest = require('../'+brandName+'-config-'+ nodeenv +'/repo-manifest')()
var exludeMergeRepos = [];
var useGitPull = processedArgs.useGitPull || false;

var configrepo = brandName+'-config-'+nodeenv
var configpath = '../' + configrepo;
var configPromise = null




var op = {
  'h' : ()=>{ console.log(elxr.info()); return '-h' }
, 'undefined' : ()=>{ return op.h(); }
, 'reset' : ()=>{
  
  // Reset NPM packages semver so major versions can be updated.
  
  const fs = require('fs')
  const wipeDependencies = (__package) => {
    const file  = fs.readFileSync(__package + '/package.json')
    const content = JSON.parse(file)
    for (var devDep in content.devDependencies) {
      if (content.devDependencies[devDep].match(/\W+\d+.\d+.\d+-?((alpha|beta|rc)?.\d+)?/g)) {
        content.devDependencies[devDep] = '*';
      }
    }
    for (var dep in content.dependencies) {
      if (content.dependencies[dep].match(/\W+\d+.\d+.\d+-?((alpha|beta|rc)?.\d+)?/g)) {
        content.dependencies[dep] = '*';
      }
    }
    fs.writeFileSync(__package + '/package.json', JSON.stringify(content))
  }

  var repos = ['client'];
  // repos = gitRepos;
  repos.forEach(wipeDependencies)
  // if (require.main === module) {
  // } else {
  //   module.exports = wipeDependencies
  // }

}
, 'upgrade' : ()=>{
  console.log('upgrade.......')
  var tasks = [
    ()=>{ 
      var p = nodeShellExec('npm', ['i', '-g', 'npm-upgrade'], {
        inherit : true, shell: true
            , env: process.env
      }).catch((e)=>{ console.error(e) }) 
      p.position = 1;
      console.log('One')
      return p;
    }
    , ()=>{ 
      var p = nodeShellExec('npm', ['cache', 'clean', '-f'], {
        inherit : true, shell: true
            , env: process.env
      }).catch((e)=>{ console.error(e) }) 
    
      p.position = 2;
      console.log('Two')
      return p;
    }
    , ()=>{ 
      var p = nodeShellExec('npm', ['install', '-g', 'n'], {
        inherit : true, shell: true
            , env: process.env
      }).catch((e)=>{ console.error(e) }) 
      p.position = 3;
      console.log('Three')
      return p;
    }
    , ()=>{ 
      var p = nodeShellExec('n', ['latest'], {
        inherit : true, shell: true
            , env: process.env
      }).catch((e)=>{ console.error(e) }) 
      p.position = 4;
      console.log('Four')
      return p;
    }
  ]
  any(tasks)
  console.log('.......done')
  console.log('Running exlr upgrade in : ' + path.dirname(__dirname))
  console.log('Currently only upgrades ember : ' + path.dirname(__dirname));
  console.info('Uninstalling existing ember globally') ;
  var step1 = nodeShellExec('cmd', ['/c', 'npm', 'uninstall', '-g', 'ember-cli'], {
      stdio: ['pipe', process.stdout, process.stderr],
      inherit : true,
      shell: true,
      cwd : path.dirname(__dirname),
      env: env
    })
    step1.on('close', ()=>{
      console.info('Installing ember globally') ;
      var step2 = nodeShellExec('cmd', ['/c', 'npm', 'install', '-g', 'ember-cli'], {
        stdio: ['pipe', process.stdout, process.stderr],
        inherit : true,
        shell: true,
        cwd : path.dirname(__dirname),
        env: env
      })
      
      step2.on('close', ()=>{
        nodeShellExec('cmd', ['/c', 'ember', '--version'], {
          stdio: ['pipe', process.stdout, process.stderr],
          inherit : true,
          shell: true,
          cwd : path.dirname(__dirname),
          env: env
        })
      })
    })
  }
, 'runas' : ()=>{
  console.log('Testing Elevation')

  if(__isElevated){
    try { 
      op[ processedArgs.label || processedArgs._[0] || 'h']()
    }
    catch(e){ 
      console.error('Error Invalid command : ' + e) 
      fs.writeFileSync('run.done', 'error')
    }
    finally {
    }
  }
  else {
    console.log('Requesting Elevated Privileges');
    // Wait for the runas to complete before we read it.
    try {
      fs.unlinkSync('run.done')
      fs.unlinkSync('run.log')
    }
    catch(e) { } //Ignore 
    
    // Find node path to send to hta.
    return nodeShellExec('where', ['node']).then(r => {
      console.log('result : ' + JSON.stringify(r))
      // throw 'rrrrrrrrrrrrrrrrr'
      // PB : TODO -- Convert all the cli args back to string.
      var namedArgs = [];
      Object.keys(processedArgs).forEach((v)=>{ v!='_' ? namedArgs.push('--'+v+'='+processedArgs[v]) : null; })
      //console.log(' namedArgs : ' + namedArgs)
      var env = Object.assign({}, process.env); // Shallow clone it.
      // console.dir(env)
      env.NODE_ENV = process.env.NODE_ENV || 'development';
      var args = [__dirname + '/windowselevate.hta'].concat(processedArgs._).concat(namedArgs.join(' ')); args.push('--runas=self');
      args.push('--nodepath='+r[r.length-1])
      args.push('--node_env='+env.NODE_ENV)
      if(processedArgs.debug) args.push('--debug=true') // Enable to debug elevated..

      return nodeShellExec('MSHTA', [`"${args.join('" "')}"`]
        , {
            inherit : true
          , shell: true
          , env: env
          , runas : 'self'
          , title : `runas`
        }
      ).then(()=>{
        // runas returned.
        try {
          // PB : TODO -- Log is comma prefixed. Needs to be proper JSON.
          var runaslog = JSON.parse('[ { "success" : true, "result" : "started"}' + fs.readFileSync('run.log', { flags : 'a+'}) + ']');
          runaslog.forEach((logEntry)=>{
            statuslog.statuslog(logEntry.success ? null : logEntry, logEntry)
            logEntry.success ? (console.log(['success :' + logEntry.result]), console.log((logEntry.messages || []).join(' '))) : (console.error(['error :' + logEntry.result]), console.error((logEntry.messages || []).join(' ')))
          })  
        }
        catch(e){
          // We must have a runas log
          statuslog.statuslog(e)
          console.error('Run log error probably was not created by runas : ' + e)
        }
      })
      .catch(err => console.error('Elevation failed : ' + err));
    })

  }
}
, 'push' : ()=>{
  if(!processedArgs._[1]) { console.error('push all not supported. Specify repo name'); return }
  // init remote bare from local
  // pushandinitremotebare
  // https://www.jeffgeerling.com/blogs/jeff-geerling/push-your-git-repositories
  // connect to repo server -- net use 172.16.0.27 
  // cd 172.16.0.27/repos/
  // mkdir repo.git
  // cd repo.git
  // git init --bare
  // cd localrepo
  // git remote rename origin githubclone
  // git remote add origin //172.16.0.27/repos/repo.git
  // git push origin master

  var repo = processedArgs._[1];
  
  var sequentialTaskShellCommands = [];
  if(!existsSync(`Z:/${repo}.git`)){
    sequentialTaskShellCommands = [
      // ['net', ['use', 'Z:', defaultRepoServer.replace('/','\\')], {
      //   inherit : true, shell: true
      //   , env: process.env
      // }]
        ['pwd', { cwd : 'Z:', inherit : true}]
      , ['mkdir', [`${repo}.git`], {
          cwd : `Z:`
          , inherit : true, shell: true
          , env: process.env
      }]
      , ['pwd', { cwd : `Z:/${repo}.git`, inherit : true}]
      , ['git', ['init', '--bare'], { cwd : `Z:/${repo}.git`
          , inherit : true, shell: true
          , env: process.env
      }]
      // PB : TODO -- Do this conditionally only...
      , ['git', ['remote', 'rename', 'origin', 'githubclone'], { cwd : `${repo}`}, (err)=>{
        console.log('Ignoring origin rename error : ' + err); return true; //return true to continue.
      } ] // PB ; Todo -- new repositories created locally will not have origin. Handle this failure.
      , ['git', ['remote', 'add', 'origin', `${defaultRepoServer}/${repo}.git`], { cwd : `${repo}`}]
      // PB : TODO -- If threre is a gitbubclone origin 
        // Set the master to pull from the local repo.
    ]
    if(!existsSync(`Z:`)){
      sequentialTaskShellCommands.splice(0,0, ['net', ['use', 'Z:', defaultRepoServer.replace(/\//gm,'\\')], {
        inherit : true, shell: true
        , env: process.env
      }])
      console.warn('Adding network drive z: for repo server. ' + sequentialTaskShellCommands[0])
      // throw 'done'
    }
  }
  
  sequentialTaskShellCommands.push(['git', ['push', 'origin', 'master'], { cwd : `${repo}`}])
  // console.dir(sequentialTaskShellCommands);

  var tasks = [];
  sequentialTaskShellCommands.forEach(shellcmd => {
    // console.log(shellcmd)
    tasks.push(()=>{ 
      
      var p = nodeShellExec.apply(null, shellcmd.slice(0,3)).catch((e)=>{ if(shellcmd[3]) { return shellcmd[3]() } else { console.error(e);}  })
      return p; 
    })
  })
  any(tasks);

}
, 'is-git-repo' : (dir)=>{
  return nodeShellExec('git', ['-C', dir.name, 'rev-parse'], { stdio : 'ignore'})
}
, 'set-url' : (remotename, url) => {
  var pushable = processedArgs.pushable || false;
  remotename = remotename || processedArgs._[1]
  url = url || processedArgs._[2]
  var serial_perform_git_seturl = (repo)=>{
    var options = {  cwd : repo }
    // console.log(repo)
    if(pushable) {
      return [
        ['git', ['remote', 'set-url', remotename, url + '/' + repo], {  cwd : repo }]
      ]
    }
    else {
      console.error('not supported for non-pushable')
    }

  }
  var x = (args)=>{
    return ()=>{
      // console.log(args)
      return nodeShellExec.apply(null, args)
    }
    // return Promise.resolve(true)
  }
  var perform_git_seturl = (dir)=>{
    op['is-git-repo'](dir).then((code)=>{
      any( serial_perform_git_seturl(dir.name).map(x) )                        
    }).catch((e)=>{
      // console.log('Failed : ' + dir.name)
    })
  }

  const { readdir } = require("fs").promises

  const dirs = async (perform, path) => {
    for (const dir of await readdir(path || process.cwd(), { withFileTypes: true })) {
      if (dir.isDirectory()) perform(dir)
    }
  }

  dirs( perform_git_seturl)
}
, 'add' : (remotename, url, branch) => {
  var pushable = processedArgs.pushable || false;
  remotename = remotename || processedArgs._[1]
  url = url || processedArgs._[2]
  branch = branch || processedArgs._[3]
  var serial_perform_git_add = (repo)=>{
    var options = {  cwd : repo }
    // console.log(repo)
    if(pushable) {
      return [
        ['git', ['remote', 'add', remotename, url + '/' + repo], {  cwd : repo }]
        , ['git', ['pull', remotename, branch], {  cwd : repo }]
        , ['git', ['branch', `--set-upstream-to=${remotename}/${branch}`, branch], {  cwd : repo }]
      ]
    }
    else {

      return [
        ['git', ['remote', 'add', remotename, url + '/' + repo], {  cwd : repo }]
        , ['git', ['remote', `set-url`, '--push', remotename, 'no-pushing'], {  cwd : repo }]
        , ['git', ['pull', remotename, branch], {  cwd : repo }]
        , ['git', ['branch', `--set-upstream-to=${remotename}/${branch}`, branch], {  cwd : repo }]
      ]
    }

  }
  var x = (args)=>{
    return ()=>{
      // console.log(args)
      return nodeShellExec.apply(null, args)
    }
    // return Promise.resolve(true)
  }
  var perform_git_add = (dir)=>{
    op['is-git-repo'](dir).then((code)=>{
      // console.log(code)
      if(code) {
        nodeShellExec('git',['remote', 'get-url', remotename], { cwd : dir.name, stdio : 'ignore' }).then(()=>{
          console.log('skipped : ' + dir.name + ', reason : A remote with same name already exists.')
        })
        .catch((e)=>{
          any( serial_perform_git_add(dir.name).map(x) )            
        })
      }
      // else console.log('Skipped : Not a Git Repo : ' + dir.name)
    }).catch((e)=>{
      // console.log('Failed : ' + dir.name)
    })
  }

  const { readdir } = require("fs").promises

  const dirs = async (perform, path) => {
    for (const dir of await readdir(path || process.cwd(), { withFileTypes: true })) {
      if (dir.isDirectory()) perform(dir)
    }
  }

  dirs(perform_git_add)
}
, 'remove' : (remotename) => {
  remotename = remotename || processedArgs._[1]
  var serial_perform_git_remove = (repo)=>{
    var options = {  cwd : repo }
    // console.log(repo)
    return [
      ['git', ['remote', 'remove', remotename], {  cwd : repo }]
    ]
  }
  var x = (args)=>{
    return ()=>{
      // console.log(args)
      return nodeShellExec.apply(null, args)
    }
    // return Promise.resolve(true)
  }
  var perform_git_remove = (dir)=>{
    op['is-git-repo'](dir).then((code)=>{
      // console.log(code)
      if(code) {
        nodeShellExec('git',['remote', 'get-url', remotename], { cwd : dir.name, stdio : 'ignore' }).then(()=>{
          any( serial_perform_git_remove(dir.name).map(x) )            
        })
        .catch((e)=>{
          console.log('skipped : ' + dir.name + ', reason : No remote named origin')
        })
      }
      // else console.log('Skipped : Not a Git Repo : ' + dir.name)
    }).catch((e)=>{
      // console.log('Failed : ' + dir.name)
    })
  }

  const { readdir } = require("fs").promises

  const dirs = async (perform, path) => {
    for (const dir of await readdir(path || process.cwd(), { withFileTypes: true })) {
      if (dir.isDirectory()) perform(dir)
    }
  }

  dirs(perform_git_remove)
}
, 'init-gitea' : (user) => {
  user = user || processedArgs._[1]
  if(!user) throw 'User name required'
  var serial_perform_init_gitea = (repo)=>{
    var options = {  cwd : repo }
    // console.log(repo)
    return [
      ['git', ['remote', 'add', 'chess', `${defaultRepoServer}/${user}/${repo}.git`], {  cwd : repo }]
    , ['git', ['remote', 'set-url', '--push', 'chess', 'no-pushing'], {  cwd : repo }]
    , ['git', ['remote', 'set-url', 'origin', `${defaultRepoServer}/${user}/${repo}.git`], {  cwd : repo }]
  ]}
  var x = (args)=>{
    return ()=>{
      // console.log(args)
      return nodeShellExec.apply(null, args)
    }
    // return Promise.resolve(true)
  }
  var perform_init_gitea = (dir)=>{
    op['is-git-repo'](dir).then((code)=>{
      // console.log(code)
      if(code) {
        nodeShellExec('git',['remote', 'get-url', 'chess'], { cwd : dir.name, stdio : 'ignore' }).then(()=>{
          console.log('skipped : ' + dir.name + ', reason : Already has remote chess ')
        })
        .catch((e)=>{
          any( serial_perform_init_gitea(dir.name).map(x) )            
        })
      }
      // else console.log('Skipped : Not a Git Repo : ' + dir.name)
    }).catch((e)=>{
      // console.log('Failed : ' + dir.name)
    })
  }

  const { readdir } = require("fs").promises

  const dirs = async (perform, path) => {
    for (const dir of await readdir(path || process.cwd(), { withFileTypes: true })) {
      if (dir.isDirectory()) perform(dir)
    }
  }

  dirs(perform_init_gitea)
}
, 'syncmaster' : (label) => {
  // Usage :
  // elxr pull -- Defaults to run config
  
  var env = Object.assign({}, process.env); // Shallow clone it.
  // console.dir(env)
  console.log('Running exlr pull : ' + path.dirname(__dirname))
  
  if(!processedArgs.runas) gitRepos.forEach(performPull)
  if(__isElevated){
    return any(elevatedRunasRepos.map((repo)=>performPull(repo))).then(()=>{
      fs.writeFileSync('run.done', 'success')
    }).catch(()=>{
      fs.writeFileSync('run.done', 'error')
    })
  }
  else return op['runas']()
}

, 'pull' : (label) => {
  // Usage :
  // elxr pull -- Defaults to run config
  
  var env = Object.assign({}, process.env); // Shallow clone it.
  console.log('Running exlr pull : ' + path.dirname(__dirname))

  var useGitPull = processedArgs.useGitPull || false;

  if(__isElevated){
    return any(elevatedRunasRepos.map((repo)=>performPull(repo))).then(()=>{
      fs.writeFileSync('run.done', 'success')
      return true;
    }).catch(()=>{
      fs.writeFileSync('run.done', 'error')
    })
  }
  else {
    // PB : TODO -- Rename op['runas'] to 'elevate'
    return op['runas']().then(()=>{ return true; })
    .catch((e)=>{
      console.error(e)
    })
    .finally(()=>{
      if(!processedArgs.runas) {
        var pendingpulls = [];
        gitRepos.forEach( (r)=>{ pendingpulls.push(performPull(r)) } )
        return Promise.all(pendingpulls).then(results =>{
          return true;
        }).finally(Traq.finally)
      }
    })
  }
}
, 'isInstalled' : ()=>{
  return nodeShellExec('where', [processedArgs._[1]], { inherit : true} ).then(()=>{
    console.log(processedArgs._[1] + ' exists.')
    return true;
  });
}
, 'i' : ()=>{
  
  var tasks = []
  tasks.push(op['pull']);
  if(!__isElevated){ 
    tasks.push(op['use'])
    tasks.push(op['npmi'])
  }

  // var tasksdefs = [
  //     ['elxr', ['pull']]
  //   , ['elxr', ['use', 'elixir']]
  //   , ['elxr', ['npmi']]
  // ]
  
  
  // tasksdefs.forEach(tasksdef=>{
  //   tasks.push( ()=> nodeShellExec.apply(null, tasksdef) )
  // })

  return any(tasks);
  
}
, 'npmi' : ()=>{
  var tasks = [];
  

  var npmbuildrepos = ['loopback-jsonapi-model-serializer']
  npmbuildrepos.forEach(repo => {
    tasks.push(()=>{ 
      return nodeShellExec('npm', ['i --force'], {
        inherit : true, shell: true
        , cwd : repo
        , env: process.env
        , title : `npm i for ${repo}`
      }).catch((e)=>{ 
        console.error('Ignoring Benign Error'); console.error(e);
      }).then(()=>{
        console.log(`--------------------npm run build for ${repo}--------------------`)
        return nodeShellExec('npm', ['run build'], {
          inherit : true, shell: true
          , cwd : repo
          , env: process.env
          , title : `npm run build for ${repo}`
        }).then(Tasq.then).catch(Tasq.catch)
      }) 
    })
  })

  any(tasks).then(()=>{

    gitRepos.push('client/server');
    gitRepos = gitRepos.concat(elevatedRunasRepos);

    var rmtasks = []
    var repotasks = []
    gitRepos.forEach(repo => {

      rmtasks.push(()=>{
        console.log(`--------------------rm package-lock.json for ${repo}--------------------`)
        return nodeShellExec('rm', ['package-lock.json'], {
          inherit : true, shell: true
          , cwd : repo
          , env: process.env
          , title : `rm 'package-lock.json' for ${repo}`
        }).catch((e)=>{console.error(e)}) 
      })
      
      if( npmbuildrepos.indexOf(repo) < 0) {
        repotasks.push(
          ()=>{
              console.log(`--------------------npm i for ${repo}--------------------`)
              var p = nodeShellExec('npm', ['i --force'], {
                inherit : true, shell: true
                , cwd : repo
                , env: process.env
                , title : `npm i for ${repo}`
              }).then(Tasq.then).catch(Tasq.catch)
              return p; 
          }) 
      }
    })

    var bowerRepos = ['client']
    bowerRepos.forEach(repo => {
      repotasks.push(()=>{ 
        var p = nodeShellExec('bower', ['install'], {
          inherit : true, shell: true
          , cwd : repo
          , env: process.env
          , title : `bower i for ${repo}`
        }).then(Tasq.then).catch(Tasq.catch)
        return p; 
      })
    })

    return Promise.all(rmtasks).then(()=>any(repotasks));
  }).catch(e=>{
    
  }).finally(statuslog.finally)
  
}
, 'start' : (label)=>{ 
  console.log('Starting Elixir Server.');
  var env = Object.assign({}, process.env); // Shallow clone it.
  // console.dir(env)
  env.NODE_ENV = process.env.NODE_ENV || 'development';
  env.DEBUG = 'loopback:connector:' + dbForLabel(label)
  var cmd = env.NODE_ENV === 'development' ? 'nodemon' : 'node';
  // cmd = 'node'
  cmd = [cmd, ['--inspect=9228', 'elixir/server.js']] 
  var childPromise = nodeShellExec(...cmd, {
    // inherit : true,
    shell: true, 
    detached: true,
    stdio: 'ignore',
    cwd : 'elixir-server'
    , env: env
  })

  var child = childPromise.process;
  if (typeof child.pid !== 'undefined') {
    console.log(`started Elixir Server PID(${child.pid}) : NODE_ENV=${process.NODE_ENV} ${cmd}`);
    fs.writeFileSync('.elixir-server.elixir.server.pid', child.pid, {
      encoding: 'utf8'
    })
  }

  // nodeShellExec('node', ['--inspect=9226', ' bin/www'], {
  //   inherit : true, 
  //   shell: true, detached: true,
  //   cwd : 'qms/server',
  //   env: env,
  //   shell : true
  // })

  // nodeShellExec('ember', ['s'], {
  //   // inherit : true, 
  //   shell: true, detached: true,
  //   cwd : 'client/',
  //   env: env
  // })
  console.log('Starting Elixir Client Host.');
  var cmd = ['ember', ['s']]
  var childPromise = nodeShellExec(...cmd, {
  // var childPromise = nodeShellExec('node', ['--inspect=9227', './node_modules/.bin/ember', 's'], {
    // PB : TODO -- ember debugging.
    // inherit : true,
    shell: true,
    detached: true,
    stdio: 'ignore',
    cwd : 'client'
    , env: env
  })
  // .catch(e=>console.error(e))

  child = childPromise.process;
  if (typeof child.pid !== 'undefined') {
    console.log(`started Elixir Client Host PID(${child.pid}) : NODE_ENV=${process.NODE_ENV} ${cmd}`);
    fs.writeFileSync('.client.server.pid', child.pid, {
      encoding: 'utf8'
    })
  }

}
, 'stop' : (label)=>{ 
  const kill = require('tree-kill');

  var serverPid = fs.readFileSync('.elixir-server.elixir.server.pid', {
    encoding: 'utf8'
  })
  fs.unlinkSync('.elixir-server.elixir.server.pid')
  console.log(serverPid)
  kill(serverPid)      

  serverPid = fs.readFileSync('.client.server.pid', {
    encoding: 'utf8'
  })
  fs.unlinkSync('.client.server.pid')
  console.log(serverPid)
  kill(serverPid)   
}
, 'use' : ()=>{
  // use a certain named instance.
  //  Eg : 
    // 1) elxr use elixir
    // 2) elxr use cihsr
  // If environment is not specified defaults to development.
    // 1) NODE=test elxr use elixir

  /*// Steps
  1) Delete Config and Data symlinks
  2) Make Links for config ({{name}}-config-{{node_env}}) and data with the NODE_ENV specified or default to dev 
  3) Iterates all repos and pull all. 'git', ['pull', '--all'].
  4) Iterates all repos and checkout to the ENV specified. 'git', ['checkout', checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV]
  5) Iterates all repos and merge from source configured in mergeSource. 'git', ['merge', mergeSource],
  */
  var runconfig = { NODE_ENV : process.env.NODE_ENV }  
  try { runconfig = Object.assign(runconfig, require('../run.js')) } catch(e) { }
  if((!processedArgs.runas || processedArgs.runas !== 'self') && 
    runconfig.NODE_ENV &&  runconfig.NODE_ENV === (process.env.NODE_ENV || runconfig.NODE_ENV) && 
    processedArgs._[1] && runconfig.use === processedArgs._[1])  {
  
    console.log(`No change detected. Already using requested specs : ${runconfig.NODE_ENV} ${runconfig.use}`)
    if(processedArgs.runas) { fs.writeFileSync('run.done', 'success') }
    return
  }

  var tasks = [
    ()=>{
      if(existsSync('config')) {
        var p = nodeShellExec('rmdir', ['config'], {inherit : true, shell: true, env: process.env }
          ).catch((err)=>{ console.log('Ignoring benign error : ' + err); return true; })
        return p;
      }
      else return Promise.resolve(true);
    },
    ()=>{ 
      if(existsSync('data')) {
        var p = nodeShellExec('rmdir', ['data'], { inherit : true, shell: true, env: process.env }
          ).catch((err)=>{ console.log('Ignoring benign error : ' + err); return true; })
        return p;
      }
      else return Promise.resolve(true);
    },
  ];
  runconfig.NODE_ENV = process.env.NODE_ENV = process.env.NODE_ENV || runconfig.NODE_ENV || 'development';
  if(processedArgs._[1] && runconfig.use !== processedArgs._[1]) runconfig.use = processedArgs._[1];
  if(!runconfig.use) {  throw 'unspecifed use not allowed. Please specify chess instance name.' }
  // console.log(process.env.cwd)
  fs.writeFileSync('./run.js', 'module.exports = ' + JSON.stringify(runconfig))
  
  var checkoutMap = {
    'development' : 'master',
  }

  // cant use git checkout -b it fails with branch already exists.
  var performCheckout = (repo, branch)=>{
    if(!branch) return Promise.resolve({ 'skipped' : true })
    if(excludeCheckouts[repo]) return Promise.resolve({ 'skipped' : true })
    return nodeShellExec('git', ['checkout', branch || checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV], {
      // return nodeShellExec('git', ['switch', '-m', '-C', checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV], {
      // inherit : true, shell: true, 
      cwd : repo
      // , stdio : ignore // Use when we want to silcence output completely.
      , runas : processedArgs.runas
      , title : `git checkout ${branch ||checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV} for ${repo}`
    }).catch((e)=>{ console.error(e); return { error : true, message : repo} }) 
  }
  if(runconfig.NODE_ENV === 'development')  performCheckout = ()=>{ return Promise.resolve(true) }

  var performPullAll = (repo)=>{
    if(excludeCheckouts[repo]) return Promise.resolve({ 'skipped' : true })
    return nodeShellExec('git', ['pull', '--all'], {
      // inherit : true, shell: true, 
      cwd : repo
      , runas : processedArgs.runas
      , title : `git pull -all for ${checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV} ${repo}`
    }).catch((e)=>{ console.error(e); return { error : true, message : repo} }) 
  }

  var mergeSources = {
    'development' : null,
    'test' : 'master',
    'production' : 'master'
  }
  var excludeCheckouts = Object.assign(exludeMergeRepos)
  delete excludeCheckouts[`elixir-config-${runconfig.NODE_ENV}`]
  delete excludeCheckouts[`cihsr-config-${runconfig.NODE_ENV}`]

  var mergeSource = mergeSources[checkoutMap[runconfig.NODE_ENV] || runconfig.NODE_ENV]
  var performMerge = (repo)=>{
    if(exludeMergeRepos[repo]) return Promise.resolve({ 'skipped' : true })
    return nodeShellExec('git', ['merge', mergeSource], {
      inherit : true, shell: true, 
      cwd : repo
      , runas : processedArgs.runas
    }).catch((e)=>{ console.error(e) }) 
  }
  if(runconfig.NODE_ENV === 'development')  performMerge = ()=>{ return Promise.resolve(true) }

  any(tasks).then(()=>{
    if(!processedArgs.runas) return op['runas']() 

    tasks = [
      ()=>{ 
        // Use junctions to avoid npm package issues
        var p = nodeShellExec('mklink', ['/J', 'config', runconfig.use + '-config' + '-' + process.env.NODE_ENV ], {
          inherit : true, shell: true
          , env: process.env
        }).catch((e)=>{ console.error(e) }) 
        return p;
      }
    ];
    if(processedArgs._[1]) {   
      tasks = tasks.concat(
        [
          ()=>{ 
            var p = nodeShellExec('mklink', ['/J', 'data', runconfig.use + '-data'], {
              inherit : true, shell: true
              , env: process.env
            }).catch((e)=>{ console.error(e) }) 
            return p;
          }
        ]
      ) 
    }

    return any(tasks)
      //target is the env is we specify in elxr use command. Default is dev
      .then( //Switch to target branch
        () => any([ any(gitRepos.map((repo)=>performCheckout(repo, process.env.NODE_ENV || 'development')))
                  , any(elevatedRunasRepos.map((repo)=>performCheckout(repo, process.env.NODE_ENV || 'development')))]) )
      .then( //PULL from target branch
        () => any([ any(gitRepos.map((repo)=>performPullAll(repo))), any(elevatedRunasRepos.map((repo)=>performPullAll(repo)))]) )
      .then( //Switch to merge source branch
        () => any([ any(gitRepos.map((repo)=>performCheckout(repo, mergeSources[process.env.NODE_ENV || 'development'] )))
                  , any(elevatedRunasRepos.map((repo)=>performCheckout(repo, mergeSources[process.env.NODE_ENV || 'development'])))]) )  
      .then( //Pull on merge source branch
        () => any([ any(gitRepos.map((repo)=>performPullAll(repo))), any(elevatedRunasRepos.map((repo)=>performPullAll(repo)))]) )
      .then( //Switch to target branch
        () => any([ any(gitRepos.map((repo)=>performCheckout(repo, process.env.NODE_ENV || 'development')))
                  , any(elevatedRunasRepos.map((repo)=>performCheckout(repo, process.env.NODE_ENV || 'development')))]) )
      .then( //Merge source branch to target branch
        () => any([ any(gitRepos.map((repo)=>performMerge(repo))).catch(err=>{ console.error('error in performMerge ' + err)}) ,
                    any(elevatedRunasRepos.map((repo)=>performMerge(repo))).catch(err=>{ console.error('error in performMerge ' + err)})]) )
      .then( () => {
        // Move test config from dev.
        // if(process.env.NODE_ENV === 'test'){
        //   var devcfgreponame =  runconfig.use + '-config' + '-development'; 
        //   var testcfgreponame =  runconfig.use + '-config' + '-test';

        //   var testcfgdir = path.dirname(__dirname) + '/' +  testcfgreponame + '/'
        //   var devcfgdir = path.dirname(__dirname) + '/' +  devcfgreponame + '/' //eg (elxr/../elixir-config.development)
          
        //   return any([
        //       ()=>{ 
        //         return nodeShellExec('git', ['checkout', 'test'], {
        //           inherit : true, shell: true, 
        //           cwd : testcfgdir
        //           // , env: process.env
        //           , runas : processedArgs.runas
        //           , title : `git checkout test for ${testcfgreponame}`
        //         }).catch((e)=>{ console.error(e) })
        //       }
        //     , ()=> {
        //         return nodeShellExec('git', ['checkout', 'master'], {
        //           inherit : true, shell: true, 
        //           cwd : devcfgdir
        //           // , env: process.env
        //           , runas : processedArgs.runas
        //           , title : `git checkout master for ${devcfgreponame}`
        //         }).catch((e)=>{ console.error(e) })
        //       }
        //     , ()=> {
        //         globSync( '**/*.test.js', {cwd : devcfgdir}).map((filename) => {    
        //           console.log('File found : ' + devcfgdir + filename)       
        //           fs.copyFileSync(devcfgdir + filename, testcfgdir+ filename);
        //         })
        //         return nodeShellExec('git', ['checkout', 'test'], {
        //           inherit : true, shell: true, 
        //           cwd : devcfgdir
        //           // , env: process.env
        //           , runas : processedArgs.runas
        //           , title : `git checkout test for ${devcfgreponame}`
        //         }).catch((e)=>{ console.error(e) })
        //       }
        //   ])
        // } 
        // else {
          return Promise.resolve(true)
        // }
      })
    .then(()=>{
      fs.writeFileSync('run.done', 'success')
    }).catch(()=>{
      fs.writeFileSync('run.done', 'error')
    })
  }).catch(()=>{
    fs.writeFileSync('run.done', 'error')
  })

  // Antibiotic stewardship program.
  // 1st use is fine.
  // Max vials dispense
  // 2nd use Pharmacy needs justification Form.
  // Approval after a certain period of time.
}
, 'g' : ()=>{
  if(processedArgs.h) { 

    console.log('elxr g [modelname] => generate a model named [modelname]'); 
    console.log('elxr g => regenerate all known models'); 
    return 
  }
  // var child = nodeShellExec('mkdir', ['-p', label], { inherit : true} );
  // console.log('Starting directory: ' + process.cwd());
  // try {
  //     child = child.on('close', () => { process.chdir(label) } );
  //     console.log('New directory: ' + process.cwd()); 
  // }
  // catch (err) {
  //     console.log('chdir: ' + err);
  // }
  // child.on('close', function(){
      // var options = {
      //       shell : true 
      //     , inherit : true
      //     // , cwd : '' + process.cwd
      //     // , env : process.env
      // };
      // nodeShellExec('git', ['init'], { inherit : true});
    if(0){
      // PB : TODO -- Special google chrome profile for tests etc.
      nodeShellExec('pwd', { inherit : true});
      // /c/Program\ Files\ \(x86\)/Google/Chrome/Application/chrome.exe --user-data-dir=/c/chess/instances/elixir_01/data/Google/Chrome/User\ Data --profile-directory="chess"
      // "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --user-data-dir="C:\chess\instances\elixir_01\data\Google\Chrome\User Data" --profile-directory="chess" http://localhost:4200/admin/crud/create/item
      // "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --user-data-dir="C:\chess\instances\elixir_01\data\Google\Chrome\User Data" --profile-directory="chess" http://localhost:4200/tests/index.html?grep=loopback
      nodeShellExec("C:/Program Files (x86)/Google/Chrome/Application/chrome.exe", [
          "--profile-directory=Profile 1"
        , 'http://localhost:4200/tests/index.html?grep=model convert ember to loopback' + '&filter=none' /*+ '&filter=model convert ember to loopback'*/]);
      
    }
      // nodeShellExec('npm', ['init', '-y'], options);
      // nodeShellExec('npm', ['init', '-y'], options);
  // })

  var g = {
    'client' : ()=>{
      console.info('Creating new ember client named : ' + processedArgs._[2] ) ;
      var step1 = nodeShellExec('cmd', ['/c', 'ember', 'new', processedArgs._[2]], {
        stdio: ['pipe', process.stdout, process.stderr],
        inherit : true,
        shell: true,
        cwd : path.dirname(__dirname),
        env: env
      })
    },

    'modelr' : ()=>{
      var tasks = [
        ()=>{
          var p = nodeShellExec('"ember"', [
            'g'
            , 'modelr'
            , processedArgs._[2]], {
            inherit : true, shell: true, env: process.env
          }).then(()=>{
            console.log('Blueprint generation complete for : ' + processedArgs._[2])
            return true;
          }).catch((e)=>{ console.error(e) }) 
          return p;
        },
        ()=>{ 
          var chromePrefsFile = "C:\\chess\\instances\\elixir_01\\data\\Google\\Chrome\\User Data\\chess\\Preferences";
          var chromeprefs = fs.readFileSync(chromePrefsFile, { encoding: 'utf8' })
          chromeprefs = JSON.parse(chromeprefs)
          var previous = chromeprefs.download.default_directory;
          var parentDir = path.dirname(__dirname);
          chromeprefs.download.default_directory = parentDir + "\\client\\app\\templates\\components\\resource";
          fs.writeFileSync(chromePrefsFile, JSON.stringify(chromeprefs))
          // PB : TODO -- detect where chrome is installed.
          // PB : TODO -- set the download dir to the place where files are needed.
          var p = nodeShellExec('"C:/Program Files (x86)/Google/Chrome/Application/chrome.exe"', [
            '--user-data-dir="C:\\chess\\instances\\elixir_01\\data\\Google\\Chrome\\User Data"'
            , '--profile-directory="chess"'
            , 'http://localhost:4200/admin/crud/create/' + processedArgs._[2]], {
            inherit : true, shell: true
                , env: process.env
          }).then(()=>{
            chromeprefs.download.default_directory = previous;
            fs.writeFileSync(chromePrefsFile, JSON.stringify(chromeprefs))
            return true;
          }).catch((e)=>{ console.error(e) }) 
          return p;
        }
        ,
        ()=>{
          console.log('Browser process should have closed here....')
          return true;
        }
      ]
      any(tasks)
      
    }

  }

  g[processedArgs._[1]]();
}
}

var util = require('util')
var cliname = 'elxr';
var ver = '1.1'; 
var help = `# list of commands... please refer dveloper documentation for ${cliname}
  ${
    // util.inspect(
    [Object.keys(op)]
    // )
  }
`;

var elxr = {
  info(){
    return chalk.cyanBright(`
-------------------------------------------------------------------------------
  *** BBH Elixir ***  
-------------------------------------------------------------------------------
  elxr ${ver}
    A cli tool for chess
    ${help}
-------------------------------------------------------------------------------
  `)}
}

function elxrworker(hasconfig){
  
  var defaultRepoServer = repomanifest.reposervers[0] // PB : TODO -- Attempt first one that is available and online...

  return isRunningElevated().then(()=>{
    // Everything runs after this check is completed. Elevation occurs out of process when needed.
    
    var manifestpath = '../'+brandName+'-config-'+nodeenv+'/repo-manifest';
    // var manifestpath = '../'+brandName+'-config-'+'production'+'/repo-manifest';
    // console.dir(manifestpath)
    
    if(hasconfig) repomanifest = require(manifestpath)()
    // console.dir(repomanifest)

    gitRepos = repomanifest.repos

    // Repositiories that have symlinks that required elevated priviletes in windows to create symlinks
    // 
    elevatedRunasRepos = repomanifest.elevated

    exludeMergeRepos = repomanifest.exludeMergeRepos

    var env = Object.assign({}, process.env); // Shallow clone it.
    var __runcmd = function(label){
      return op[label] ? op[label]() : null;
    } 

    // mysqldump --add-drop-table --no-data -u root -p db_name | grep 'DROP TABLE' ) > drop_all_tables.sql
    // mysql -u root -p db_name < drop_all_tables.sql

    var mysql = '../xampp/mysql/bin/mysql'
    var mysqldump = '../xampp/mysql/bin/mysqldump'

    // --runas
    if(processedArgs.runas) {
      // Weve been asked to run in priviledged mode. Check if we already are privileged.
      __runcmd('runas')
    }
    else __runcmd(processedArgs.label || processedArgs._[0] || 'h');

  })
}

try {

  if(!existsSync(configpath)){ configPromise = performPull(configrepo) }
  else configPromise = Promise.resolve(true)

  configPromise.then(()=>{
    return elxrworker(true)
  })
  .catch(e=>{
    console.warn(chalk.yellow(`
-------------------------------------------------------------------------------
Warning : Cannot locate your preferred configuration since it was not specified
  You should fork the default chess configuration to customize and make it 
    your own instance with a named config as 
      {{yourowninstancename}}-config-{{yourcurrentenvironment}} 
    And then run this tool as follows
      NODE_ENV={{yourenvironment}} elxr i {{yourowninstancename}} 
OR
  Run this tool with the following command to use a quick start default.
    node elxr --default
OR
  Choose the the option to create a new instance for you interactively.

We will run your choice of default or create your own at the next prompt.
-------------------------------------------------------------------------------
    `))
    var prompt = cli.prompt;
    prompt.question(`Choose an option :
        d) Run default config       
        c) Create one interactively
        h) Help
        q) Quit                    
           Default <= d
      : `, function(choice) {
      prompt.close();
      if(choice && choice==='d' || !choice) {
        processedArgs._[0] = 'i'
        elxrworker()
      }
      else if(choice === 'h'){
        processedArgs._[0] = 'h'
        elxrworker()
      }
      else if(choice === 'c'){
        // PB : TODO -- Prompt for instance name and clone chess-config-template as new repo... 
        console.warn(
          chalk.magenta('No Option Available. Your account may not have privileges. You can request here http://git.bbh.org.in/chess'))
      } else {
        console.log(chalk.gray(`Default option not exercised. Please follow manual instructions to customize your instance here http://git.bbh.org.in/chess and try again.`));
        process.exit()
      }
    });
    
  })

}
catch(e){
  fs.writeFileSync('run.log', ', ' + JSON.stringify({ error : e.message }), {'flag':'a+'} )
  fs.writeFileSync('run.done', 'error');
}