1 files changed, 33 insertions, 0 deletions
diff --git a/Map/Logic/MapParser/Strategies/OpportunityParserStrategy.swift b/Map/Logic/MapParser/Strategies/OpportunityParserStrategy.swift
new file mode 100644
index 0000000..104fd30
--- /dev/null
+++ b/Map/Logic/MapParser/Strategies/OpportunityParserStrategy.swift
@@ -0,0 +1,33 @@
+import Foundation
+
+struct OpportunityParserStrategy: MapParserStrategy {
+  private let regex = MapParsingPatterns.opportunity
+
+  func canHandle(line: String) -> Bool {
+    let range = NSRange(location: 0, length: line.utf16.count)
+    let matches = regex.matches(in: String(line), options: [], range: range)
+    return matches.count > 0 && matches[0].numberOfRanges == 5
+  }
+
+  func handle(index: Int, line: String, vertices: [String: Vertex]) -> (Any.Type, Any) {
+    let range = NSRange(location: 0, length: line.utf16.count)
+    let matches = regex.matches(in: String(line), options: [], range: range)
+
+    let match = matches[0]
+    let multiplier = CGFloat(
+      String(line[Range(match.range(at: 3), in: line)!]) == "-" ? -1.0 : 1.0)
+    let vertex = String(line[Range(match.range(at: 2), in: line)!])
+    let opportunityString = String(line[Range(match.range(at: 4), in: line)!])
+    let opportunity = CGFloat(
+      truncating: NumberFormatter().number(from: opportunityString) ?? 0.0)
+
+    if let origin = vertices[vertex] {
+      let destination = CGPoint(
+        x: origin.position.x + opportunity * multiplier, y: origin.position.y)
+      let opportunity = Opportunity(id: index, origin: origin.position, destination: destination)
+      return (Opportunity.self, opportunity)
+    }
+
+    return (NSObject.self, NSObject())  // No matching object
+  }
+}