'use strict';
/*globals require, before, after, describe, it*/

var assert = require('assert');
var async = require('async');

var db = require('./mocks/databasemock');
var Flags = require('../src/flags');
var Categories = require('../src/categories');
var Topics = require('../src/topics');
var Posts = require('../src/posts');
var User = require('../src/user');
var Meta = require('../src/meta');

describe('Flags', function () {
	before(function (done) {
		// Create some stuff to flag
		async.waterfall([
			async.apply(User.create, {username: 'testUser', password: 'abcdef', email: 'b@c.com'}),
			function (uid, next) {
				Categories.create({
					name: 'test category'
				}, function (err, category) {
					if (err) {
						return done(err);
					}

					Topics.post({
						cid: category.cid,
						uid: uid,
						title: 'Topic to flag',
						content: 'This is flaggable content'
					}, next);
				});
			},
			function (topicData, next) {
				User.create({
					username: 'testUser2', password: 'abcdef', email: 'c@d.com'
				}, next);
			}
		], done);
	});

	describe('.create()', function () {
		it('should create a flag and return its data', function (done) {
			Flags.create('post', 1, 1, 'Test flag', function (err, flagData) {
				assert.ifError(err);
				var compare = {
					flagId: 1,
					uid: 1,
					targetId: 1,
					type: 'post',
					description: 'Test flag'
				};

				for(var key in compare) {
					if (compare.hasOwnProperty(key)) {
						assert.ok(flagData[key]);
						assert.strictEqual(flagData[key], compare[key]);
					}
				}

				done();
			});
		});
	});

	describe('.get()', function () {
		it('should retrieve and display a flag\'s data', function (done) {
			Flags.get(1, function (err, flagData) {
				assert.ifError(err);
				var compare = {
					flagId: 1,
					uid: 1,
					targetId: 1,
					type: 'post',
					description: 'Test flag',
					state: 'open'
				};

				for(var key in compare) {
					if (compare.hasOwnProperty(key)) {
						assert.ok(flagData[key]);
						assert.strictEqual(flagData[key], compare[key]);
					}
				}

				done();
			});
		});
	});

	describe('.list()', function () {
		it('should show a list of flags (with one item)', function (done) {
			Flags.list({}, 1, function (err, flags) {
				assert.ifError(err);
				assert.ok(Array.isArray(flags));
				assert.equal(flags.length, 1);
				
				Flags.get(flags[0].flagId, function (err, flagData) {
					assert.ifError(err);
					assert.equal(flags[0].flagId, flagData.flagId);
					assert.equal(flags[0].description, flagData.description);
					done();
				});
			});
		});
	});

	describe('.update()', function () {
		it('should alter a flag\'s various attributes and persist them to the database', function (done) {
			Flags.update(1, 1, {
				"state": "wip",
				"assignee": 1
			}, function (err) {
				assert.ifError(err);
				db.getObjectFields('flag:1', ['state', 'assignee'], function (err, data) {
					if (err) {
						throw err;
					}

					assert.strictEqual('wip', data.state);
					assert.strictEqual(1, data.assignee);
					done();
				});
			});
		});

		it('should persist to the flag\'s history', function (done) {
			Flags.getHistory(1, function (err, history) {
				if (err) {
					throw err;
				}

				history.forEach(function (change) {
					switch (change.attribute) {
						case 'state':
							assert.strictEqual('[[flags:state-wip]]', change.value);
							break;
						
						case 'assignee':
							assert.strictEqual(1, change.value);
							break;
					}
				});

				done();
			});
		});
	});

	describe('.getTarget()', function () {
		it('should return a post\'s data if queried with type "post"', function (done) {
			Flags.getTarget('post', 1, 1, function (err, data) {
				assert.ifError(err);
				var compare = {
					uid: 1,
					pid: 1,
					content: 'This is flaggable content'
				};

				for(var key in compare) {
					if (compare.hasOwnProperty(key)) {
						assert.ok(data[key]);
						assert.strictEqual(data[key], compare[key]);
					}
				}

				done();
			});
		});

		it('should return a user\'s data if queried with type "user"', function (done) {
			Flags.getTarget('user', 1, 1, function (err, data) {
				assert.ifError(err);
				var compare = {
					uid: 1,
					username: 'testUser',
					email: 'b@c.com'
				};

				for(var key in compare) {
					if (compare.hasOwnProperty(key)) {
						assert.ok(data[key]);
						assert.strictEqual(data[key], compare[key]);
					}
				}

				done();
			});
		});
	});

	describe('.validate()', function () {
		it('should error out if type is post and post is deleted', function (done) {
			Posts.delete(1, 1, function (err) {
				if (err) {
					throw err;
				}

				Flags.validate({
					type: 'post',
					id: 1,
					uid: 1
				}, function (err) {
					assert.ok(err);
					assert.strictEqual('[[error:post-deleted]]', err.message);
					Posts.restore(1, 1, done);
				});
			});
		});

		it('should not pass validation if flag threshold is set and user rep does not meet it', function (done) {
			Meta.configs.set('privileges:flag', '50', function (err) {
				assert.ifError(err);

				Flags.validate({
					type: 'post',
					id: 1,
					uid: 2
				}, function (err) {
					assert.ok(err);
					assert.strictEqual('[[error:not-enough-reputation-to-flag]]', err.message);
					Meta.configs.set('privileges:flag', 0, done);
				});
			});
		});
	});

	describe('.appendNote()', function () {
		it('should add a note to a flag', function (done) {
			Flags.appendNote(1, 1, 'this is my note', function (err) {
				assert.ifError(err);
				
				db.getSortedSetRange('flag:1:notes', 0, -1, function (err, notes) {
					if (err) {
						throw err;
					}

					assert.strictEqual('[1,"this is my note"]', notes[0]);
					done();
				});
			});
		});

		it('should be a JSON string', function (done) {
			db.getSortedSetRange('flag:1:notes', 0, -1, function (err, notes) {
				if (err) {
					throw err;
				}

				try {
					JSON.parse(notes[0]);
				} catch (e) {
					assert.ifError(e);
				}

				done();
			});
		});
	});

	describe('.getNotes()', function () {
		before(function (done) {
			// Add a second note
			Flags.appendNote(1, 1, 'this is the second note', done);
		});

		it('return should match a predefined spec', function (done) {
			Flags.getNotes(1, function (err, notes) {
				assert.ifError(err);
				var compare = {
					uid: 1,
					content: 'this is my note'
				};
				
				var data = notes[1];
				for(var key in compare) {
					if (compare.hasOwnProperty(key)) {
						assert.ok(data[key]);
						assert.strictEqual(data[key], compare[key]);
					}
				}

				done();
			});
		});

		it('should retrieve a list of notes, from newest to oldest', function (done) {
			Flags.getNotes(1, function (err, notes) {
				assert.ifError(err);
				assert(notes[0].datetime > notes[1].datetime);
				assert.strictEqual('this is the second note', notes[0].content);
				done();
			});
		});
	});

	describe('.appendHistory()', function () {
		var entries;
		before(function (done) {
			db.sortedSetCard('flag:1:history', function (err, count) {
				entries = count;
				done(err);
			});
		});

		it('should add a new entry into a flag\'s history', function (done) {
			Flags.appendHistory(1, 1, ['state:rejected'], function (err) {
				assert.ifError(err);

				Flags.getHistory(1, function (err, history) {
					if (err) {
						throw err;
					}

					assert.strictEqual(entries + 1, history.length);
					done();
				});
			});
		});
	});

	describe('.getHistory()', function () {
		it('should retrieve a flag\'s history', function (done) {
			Flags.getHistory(1, function (err, history) {
				assert.ifError(err);
				assert.strictEqual(history[0].fields[0].value, '[[flags:state-rejected]]');
				done();
			});
		});
	});

	after(function (done) {
		db.emptydb(done);
	});
});