Add slider filters and initialisation screen that handles data loading before application starts

1 files changed, 42 insertions, 0 deletions

diff --git a/app/models.js b/app/models.js
index b4584f7..e3f6381 100644
--- a/app/models.js
+++ b/app/models.js
@@ -712,10 +712,52 @@ export class Filters {
 		this.minPrice = 0;
 		this.maxPrice = Number.POSITIVE_INFINITY;
 		this.minYear = 1800;
+		this.maxYear = Number.POSITIVE_INFINITY;
 		this.minArea = 0;
+		this.maxArea = Number.POSITIVE_INFINITY;
+		this.minLot = 0;
+		this.maxLot = Number.POSITIVE_INFINITY;
 		/** @type {string[]} */
 		this.districts = [];
 	}
+
+	/**
+	 * Update filter ranges based on house data
+	 * @param {House[]} houses
+	 */
+	updateRanges(houses) {
+		if (!houses || houses.length === 0) return;
+
+		const prices = houses.map((h) => h.price).filter((p) => p > 0);
+		const years = houses.map((h) => h.constructionYear).filter((y) => y && y > 0);
+		const areas = houses.map((h) => h.livingArea).filter((a) => a && a > 0);
+		const lots = houses.map((h) => h.totalArea).filter((l) => l && l > 0);
+
+		// Set reasonable defaults if no data
+		const defaultPrice = 500000;
+		const defaultYear = new Date().getFullYear();
+		const defaultArea = 200;
+		const defaultLot = 1000;
+
+		// Update min/max values, ensuring they're reasonable
+		this.minPrice = Math.min(...prices) || 0;
+		this.maxPrice = Math.max(...prices) || defaultPrice;
+
+		this.minYear = Math.min(...years) || 1800;
+		this.maxYear = Math.max(...years) || defaultYear;
+
+		this.minArea = Math.min(...areas) || 0;
+		this.maxArea = Math.max(...areas) || defaultArea;
+
+		this.minLot = Math.min(...lots) || 0;
+		this.maxLot = Math.max(...lots) || defaultLot;
+
+		// Ensure min doesn't exceed max
+		this.minPrice = Math.min(this.minPrice, this.maxPrice);
+		this.minYear = Math.min(this.minYear, this.maxYear);
+		this.minArea = Math.min(this.minArea, this.maxArea);
+		this.minLot = Math.min(this.minLot, this.maxLot);
+	}
 }
 
 export class Collection {