import { assert } from "chai";
import { describe, it } from "node:test";
import * as m from "../checklist-item-event-message";
import { NerisBenchmarkType } from "../constants";

describe("checklist-item-event-message", function() {
  describe("buildChecklistMessage", function() {
    it("formats Checked with name and NERIS suffix", function() {
      const message = m.buildChecklistMessage(true, {
        name: "Water On Fire",
        neris_benchmark: "time_water_on_fire",
      });
      assert.equal(message, "Checked: Water On Fire (NERIS: Time Water On Fire)");
    });

    it("formats Unchecked with name and NERIS suffix", function() {
      const message = m.buildChecklistMessage(false, {
        name: "Water On Fire",
        neris_benchmark: "time_water_on_fire",
      });
      assert.equal(message, "Unchecked: Water On Fire (NERIS: Time Water On Fire)");
    });

    it("title-cases every NerisBenchmarkType key", function() {
      assert.equal(
        m.buildChecklistMessage(true, { name: "Fire Under Control", neris_benchmark: "time_fire_under_control" }),
        "Checked: Fire Under Control (NERIS: Time Fire Under Control)"
      );
      assert.equal(
        m.buildChecklistMessage(true, { name: "360", neris_benchmark: "time_360_completed" }),
        "Checked: 360 (NERIS: Time 360 Completed)"
      );
    });

    it("omits the NERIS suffix when neris_benchmark is absent or empty", function() {
      assert.equal(m.buildChecklistMessage(true, { name: "Basic Item" }), "Checked: Basic Item");
      assert.equal(m.buildChecklistMessage(true, { name: "Basic Item", neris_benchmark: "" }), "Checked: Basic Item");
    });

    it("degrades to the bare prefix without a name", function() {
      assert.equal(m.buildChecklistMessage(true, {}), "Checked");
      assert.equal(m.buildChecklistMessage(false, {}), "Unchecked");
      assert.equal(m.buildChecklistMessage(true, { name: "", neris_benchmark: "time_water_on_fire" }), "Checked");
    });

    it("tolerates missing or malformed events", function() {
      assert.equal(m.buildChecklistMessage(true), "Checked");
      assert.equal(m.buildChecklistMessage(false, null), "Unchecked");
      assert.equal(m.buildChecklistMessage(true, { name: 42, neris_benchmark: true }), "Checked");
    });
  });

  describe("nerisBenchmarkLabel", function() {
    it("maps every NerisBenchmarkType value to a title-case label", function() {
      const expected: Record<NerisBenchmarkType, string> = {
        [NerisBenchmarkType.TimeCommandEstablished]: "Time Command Established",
        [NerisBenchmarkType.Time360Completed]: "Time 360 Completed",
        [NerisBenchmarkType.TimeWaterOnFire]: "Time Water On Fire",
        [NerisBenchmarkType.TimeFireUnderControl]: "Time Fire Under Control",
        [NerisBenchmarkType.TimeFireKnockedDown]: "Time Fire Knocked Down",
        [NerisBenchmarkType.TimeSuppressionComplete]: "Time Suppression Complete",
        [NerisBenchmarkType.TimePrimarySearchBegin]: "Time Primary Search Begin",
        [NerisBenchmarkType.TimePrimarySearchComplete]: "Time Primary Search Complete",
      };
      for (const key of Object.values(NerisBenchmarkType)) {
        assert.equal(m.nerisBenchmarkLabel(key), expected[key]);
      }
    });

    it("normalizes uppercase and mixed-case input to title case", function() {
      assert.equal(m.nerisBenchmarkLabel("TIME_WATER_ON_FIRE"), "Time Water On Fire");
      assert.equal(m.nerisBenchmarkLabel("Time_fIRE_Under_CONTROL"), "Time Fire Under Control");
    });

    it("passes through values that are not snake_case keys", function() {
      assert.equal(m.nerisBenchmarkLabel("100"), "100");
      assert.equal(m.nerisBenchmarkLabel("Already Titled"), "Already Titled");
      assert.equal(m.nerisBenchmarkLabel("__leading_and_trailing__"), "Leading And Trailing");
      assert.equal(m.nerisBenchmarkLabel(""), "");
    });
  });

  describe("buildIncidentChecklistMessage", function() {
    it("formats Added/Removed with the checklist name", function() {
      assert.equal(m.buildIncidentChecklistMessage(true, { name: "Truck Pre-Trip" }), "Added checklist: Truck Pre-Trip");
      assert.equal(m.buildIncidentChecklistMessage(false, { name: "Truck Pre-Trip" }), "Removed checklist: Truck Pre-Trip");
    });

    it("degrades to the bare prefix without a name", function() {
      assert.equal(m.buildIncidentChecklistMessage(true, {}), "Added checklist");
      assert.equal(m.buildIncidentChecklistMessage(false, { name: "" }), "Removed checklist");
    });

    it("tolerates missing or malformed events", function() {
      assert.equal(m.buildIncidentChecklistMessage(true), "Added checklist");
      assert.equal(m.buildIncidentChecklistMessage(false, null), "Removed checklist");
      assert.equal(m.buildIncidentChecklistMessage(true, { name: 42 }), "Added checklist");
    });
  });
});