<?
	include_once("../php/include-request.php");

	verifyAuthorized();

	$action = getMandatoryRequestValue("action");

	initDatabaseConnection();
	if($action == "graph-month-totals") {
		// input
		$year = intval(getMandatoryRequestValue("year"));

		// fetch data
		$data = array();
        $months = array();
        $names = array();
        $rows = dbQuery("SELECT * FROM stat_month_totals WHERE year = ? AND household_id = ?", $year, getHouseholdId());
        foreach($rows as $row) {
            array_push($data, $row);
            $months[$row['month']] = $row['month'];
            $names[$row['account_name']] = $row['account_name'];
        }

		// render data
		$xCategories = array();
		foreach($months as $month) {
			array_push($xCategories, getMonthStr($month));
		}

		$s = 0;
		$t = 0;
		function getNextPersonExpenseColor($expense) {
			global $s, $t;
			$d = "5";
			if($expense) {
				return "#".dechex(15 - ($s++) * 4).$d.$d;
			} else {
				return "#".$d.dechex(15 - ($t++) * 4).$d;
			}
			return "yellow";
		}

		$types = array("0", "1");
		$series = array();
		foreach($types as $type) {
			foreach($names as $name) {
				$serieData = array();
				foreach($months as $month) {
					$found = false;
					for($i = 0; $i < sizeof($data); $i++) {
						if($data[$i]['month'] == $month &&
							$data[$i]['expense'] == $type &&
							$data[$i]['account_name'] == $name) {

							array_push($serieData, round($data[$i]['amount']));
							$found = true;
						}
					}
					if(!$found) {
						array_push($serieData, 0);
					}
				}

				$serie = array(
					"name" => insertExpenseText($type, true)." ($name)",
					"color" => getNextPersonExpenseColor($type),
					"data" => $serieData,
					"stack" => $type
				);
				array_push($series, $serie);
			}
		}

		$response = array(
			"year" => $year,
			"xCategories" => $xCategories,
			"series" => $series
		);
		requestOk(json_encode($response, JSON_PRETTY_PRINT));
	} else if($action == "graph-month-plus") {
		// input
		$year = intval(getMandatoryRequestValue("year"));

		// fetch data
		$months = array();
		$xCategories = array();
        $seriesData = array();
        $rows = dbQuery("SELECT * FROM stat_month_plus WHERE year = ? AND household_id = ?", $year, getHouseholdId());
        foreach($rows as $row) {
            $months[$row['month']] = $row['amount'];

            $data = array(
				"y" => round($row['amount']),
				"color" => ($row['amount'] < 0 ? "#fc4954" : "#7ded55")
            );

            array_push($xCategories, getMonthStr($row['month']));
            array_push($seriesData, $data);
        }

		$response = array(
			"year" => $year,
			"xCategories" => $xCategories,
			"seriesData" => $seriesData
		);
		requestOk(json_encode($response, JSON_PRETTY_PRINT));
	} else if($action == "graph-month-avg") {
		// input
		$year = intval(getMandatoryRequestValue("year"));

		// fetch data
		$monthRows = dbQuery("SELECT count(DISTINCT month) AS c FROM record_valid WHERE year = ? AND household_id = ?", $year, getHouseholdId());
		$monthCount = $monthRows[0]['c'];
		$rows1 = dbQuery("SELECT * FROM stat_month_sum1 WHERE year = ? AND household_id = ?", $year, getHouseholdId());
		$rows2 = dbQuery("SELECT * FROM stat_month_sum2 WHERE year = ? AND household_id = ?", $year, getHouseholdId());
		$rows3 = dbQuery("SELECT * FROM stat_month_sum3 WHERE year = ? AND household_id = ?", $year, getHouseholdId());

		// put it together
        $seriesData = array();
		foreach($rows1 as $row1) {
			$data = array(
				"name" => insertExpenseText($row1['expense'], true),
				"y" => round($row1['amount'] / $monthCount),
				"color" => ($row1['expense'] == 1 ? "#fc4954" : "#7ded55"),
				"drilldown" => insertExpenseText($row1['expense'])
			);
			array_push($seriesData, $data);
		}

		$drilldownSeries = array();
		foreach($rows1 as $row1) {
			$data = array();
			foreach($rows2 as $row2) {
				if($row1['expense'] == $row2['expense']) {
					$obj = array(
						"name" => $row2['category_group_name'],
						"y" => round($row2['amount'] / $monthCount),
						"drilldown" => $row2['category_group_id']
					);
					array_push($data, $obj);
				}
			}

			$serie = array(
				"id" => insertExpenseText($row1['expense']),
				"name" => insertExpenseText($row1['expense'], true),
				"data" => $data
			);
			array_push($drilldownSeries, $serie);
		}

		foreach($rows2 as $row2) {
			$data = array();
			foreach($rows3 as $row3) {
				if($row2['expense'] == $row3['expense'] && $row2['category_group_id'] == $row3['category_group_id']) {
					$obj = array(
						"id" => $row3['category_id'],
						"name" => $row3['category_name'],
						"y" => round($row3['amount'] / $monthCount)
					);
					array_push($data, $obj);
				}
			}

			$serie = array(
				"id" => $row2['category_group_id'],
				"name" => $row2['category_group_name'],
				"data" => $data
			);
			array_push($drilldownSeries, $serie);
		}

		// send response
		$response = array(
			"year" => $year,
			"seriesData" => $seriesData,
			"drilldownSeries" => $drilldownSeries,
		);
		requestOk(json_encode($response, JSON_PRETTY_PRINT));
	} else if($action == "category-details") {
		// input
		$year = intval(getMandatoryRequestValue("year"));
		$categoryId = intval(getMandatoryRequestValue("categoryId"));

		// fetch data
		$monthRows = dbQuery("SELECT DISTINCT month FROM record_valid WHERE year = ? AND household_id = ? ORDER BY month", $year, getHouseholdId());
		$months = array();
		$yearSum = 0;
		$detailsRows = dbQuery("SELECT * FROM stat_category_details WHERE year = ? AND category_id = ? AND household_id = ?", $year, $categoryId, getHouseholdId());
		foreach($monthRows as $monthRow) {
			$sum = 0;
			foreach($detailsRows as $detailsRow) {
				if($monthRow['month'] == $detailsRow['month']) {
					$sum = $detailsRow['amount'];
				}

				$categoryGroupName = $detailsRow['category_group_name'];
				$categoryName = $detailsRow['category_name'];
	        }
			$data = array(
				"month" => getMonthStr($monthRow['month']),
				"sum" => round($sum)
			);
			array_push($months, $data);
			$yearSum += $sum;
		}

		$response = array(
			"year" => $year,
			"categoryGroupName" => $categoryGroupName,
			"categoryId" => $categoryId,
			"categoryName" => $categoryName,
			"yearSum" => round($yearSum),
			"monthlyAverage" => round($yearSum / count($months)),
			"months" => $months
		);
		requestOk(json_encode($response, JSON_PRETTY_PRINT));
	} else {
		requestFail("Unknown request action \"$action\"");
	}
	closeDatabaseConnection();
?>