/**
* Regular expressions file.
*/
define([
		"constants",
	],
	function(constants){
		//tags accept only alphanumeric, '_' and ',' characters
		var first_tag = new RegExp("^\\[([\\w,]+)\\]\\[[\\w,]+\\][^]+$");

		var second_tag = new RegExp("^\\[[\\w,]+\\]\\[([\\w,]+)\\][^]+$");

		/**
		* JIRA, if exists, is always in third position.
		* JIRA keys: an alphanumeric prefix, a '-' and a numeric suffix (bug number).
		* Repeat pattern 0..n times with a comma as separator at the beginning.
		*/
		var jira_tag = new RegExp("^\\[[\\w,]+\\]\\[[\\w,]+\\]\\[(\\w+-\\d+(,\\w+-\\d+)*)\\][^]*");


                 /**
                 * Preflight tag regular expression
                 */
                   var preflight_tag = new RegExp("\\[(Preflight-\\d+,[A-Z_]+)\\]");

                 /**
                 * 1st case: description is between the jira tag and the changelog tag (optional "*")
                 * 2nd case: description is between the type tag and the changelog tag (no jira tag, optional "*")
       		 * 3rd case: description is between the jira tag and the reviewer (no changelog, required "+")
      	         * 4th case: description is between the type tag and the reviewer (no jira tag, no changelog, required "+")
                 * 5rd case: description is between the jira tag and the validator (no changelog, required "+")
                 * 6th case: description is between the type tag and the reviewer (no jira tag, no changelog, required "+")
                 * 7th case: description is at the end, after jira tag (no changelog, no reviewer, required "+")
                 * 8th case: description is at the end (no jira tag, no changelog, no reviewer, required "+")
                 */
                  var desc_code = new RegExp("^\\[[\\w,]+\\]\\[\\w+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]*)\\[" + constants.changelog + "\\]|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]([^]*)\\[" + constants.changelog + "\\]|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]+)" + constants.reviewer + "|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]([^]+)" + constants.reviewer + "|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]+)" + constants.validator + "|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]([^]+)" + constants.validator + "|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]+)$|"
                       + "^\\[[\\w,]+\\]\\[\\w+\\]([^]+)$");

		/**
		* 1st case: description is between jira tag and validator
		* 2nd case: description is between map tag and validator (no jira tag)
		* 3rd case: description is after jira tag
		* 4th case: description is after map tag (no jira tag)
		*/
		var desc_data = new RegExp("^\\[[\\w,]+\\]\\[[\\w,]+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]+)" + constants.validator + "|"
			+ "^\\[[\\w,]+\\]\\[[\\w,]+\\]([^]+)" + constants.validator + "|"
			+ "^\\[[\\w,]+\\]\\[[\\w,]+\\]\\[\\w+-\\d+(,\\w+-\\d+)*\\]([^]+)$|"
			+ "^\\[[\\w,]+\\]\\[[\\w,]+\\]([^]+)$");

		/**
		* 1st case: changelog is between the changelog tag and the reviewer
		* 2nd case: changelog is between the changelog tag and the validator (no reviewer)
		* 3rd case: changelog is at the end (no reviewer)
		*/
		var changelog = new RegExp("\\[" + constants.changelog + "\\]([^]+)" + constants.reviewer + "|"
			+ "\\[" + constants.changelog + "\\]([^]+)" + constants.validator + "|"
		    + "\\[" + constants.changelog + "\\]([^]+)$");

		//use unicode to include accent and other french characters
		var reviewer = new RegExp(constants.reviewer + "([A-Za-z\u00C0-\u017F '-]+.*)\n$");
		var changelog_tag = new RegExp("\\[" + constants.changelog + "\\]", "i");

		var reviewer_tag = new RegExp(constants.reviewer, "i");

		var validator_tag = new RegExp(constants.validator, "i");

		return {
			first_tag: first_tag,
			second_tag: second_tag,
			jira_tag: jira_tag,
			preflight_tag: preflight_tag,
			desc_code: desc_code,
			desc_data: desc_data,
			changelog: changelog,
			reviewer: reviewer,
			changelog_tag: changelog_tag,
			reviewer_tag: reviewer_tag,
			validator_tag: validator_tag,
		};
	}
);