#!/usr/bin/ruby -w
# SPDX-License-Identifier: Apache-2.0
# Copyright (C) 2021 OKTET Labs Ltd. All rights reserved.

#
# Cgi for Diary Management Application
#

# "." is removed from LOAD_PATH in Ruby 1.9
# Backporting require_relative to Ruby 1.8
# See http://steveklabnik.github.io/require_relative/require_relative.html
#
unless Object.new.respond_to?(:require_relative, true)
    def require_relative(relative_feature)
        file = caller.first.split(/:\d/,2).first
        raise LoadError, "require_relative is called in #{$1}" if
                         /\A\((.*)\)/ =~ file
        require File.expand_path(relative_feature, File.dirname(file))
    end
end

require 'cgi'
require 'ldap'
require_relative 'diary_env'
require 'dbi'
require 'amrita/template'
include Amrita

class AmritaTemplate < Amrita::TemplateText
    def initialize(filename)
        # Use TemplateText instead of TemplateFile to avoid problem
        # in amrita/node.rb with tainted template strings, because
        # they have been read from external file
        super(IO.read(filename).untaint)
        self.amrita_id = :_id
        self.asxml = true
    end
end

require_relative 'sql_cache'
require_relative 'project'
require_relative 'diary'
require_relative 'mycgi'

$SAFE = 1
$DEBUG = 1

class NeedConfirm < Exception
    def initialize(code = nil)
        @code = code
    end
    attr :code
end

#
# Initialize global variables
#

# CGI default parameters
cgi_defaults = {
    "do" => "diary",
    "prj" => {
        "list" => {
            "customer" => ["*"],
            "prj_status" => [], #Project::STATUS_DEFAULT,
            "edit" => []
        },
        "action" => {}
    },
    "diary" => {
        "list" => {
            "start" => MyCGI::date2hash(Date.today),
            "end" => MyCGI::date2hash(Date.today),
            "prj_id" => ["*"],
            "customer" => ["*"],
            "who" => ["*"],
            "newest_first" => ["off"],
            "just_stats" => ["off"],
            "edit" => []
        },
        "action" => {}
    },
    "confirm" => []
}

env = DiaryEnv.instance
env.user = ENV["REMOTE_USER"]

# Customize default parameters
# TODO: make this user-defined
cgi_defaults["diary"]["list"]["start"]["day"] = 1
cgi_defaults["diary"]["list"]["who"] = [env.user.uid] if env.user.local?

# CGI object
cgi = MyCGI.new("post", cgi_defaults, ["list", "confirm"], ["descr"], "html4Tr")
prj = ProjectUI.new(cgi)
diary = DiaryUI.new(cgi)


cgi.out("charset" => "utf-8") do begin
    env.confirmation = cgi.tree_params["confirm"]

    # Process cgi parameters
    prj.action
    diary.action

    # Output html data
    if cgi.tree_params["do"] == "project"
        prj.show
    elsif cgi.tree_params["do"] == "diary"
        diary.show
    else
        ""
    end

    rescue NeedConfirm => detail
        tmpl = AmritaTemplate.new("confirm.html")
        s = String.new
        tmpl.expand(s, {
            :message => noescape{$!},
            :hiddens => cgi.hiddens(cgi.tree_flatten([])),
            :code => cgi.hiddens([["confirm", detail.code]])
        })

    rescue RuntimeError
        tmpl = AmritaTemplate.new("error.html")
        s = String.new
        tmpl.expand(s, {
            :message => noescape{$!},
            :debug => $!.backtrace.join("\n")
        })
    end
end