/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { describe, it, expect, vi, beforeEach } from 'vitest';
import { UiTelemetryService } from './uiTelemetry.js';
import { ToolCallDecision } from './tool-call-decision.js';
import { ToolCallEvent } from './types.js';
import { EVENT_API_ERROR, EVENT_API_RESPONSE, EVENT_TOOL_CALL, } from './types.js';
import { ToolErrorType } from '../tools/tool-error.js';
import { ToolConfirmationOutcome } from '../tools/tools.js';
import { MockTool } from '../test-utils/mock-tool.js';
const createFakeCompletedToolCall = (name, success, duration = 100, outcome, error) => {
    const request = {
        callId: `call_${name}_${Date.now()}`,
        name,
        args: { foo: 'bar' },
        isClientInitiated: false,
        prompt_id: 'prompt-id-1',
    };
    const tool = new MockTool({ name });
    if (success) {
        return {
            status: 'success',
            request,
            tool,
            invocation: tool.build({ param: 'test' }),
            response: {
                callId: request.callId,
                responseParts: [
                    {
                        functionResponse: {
                            id: request.callId,
                            name,
                            response: { output: 'Success!' },
                        },
                    },
                ],
                error: undefined,
                errorType: undefined,
                resultDisplay: 'Success!',
            },
            durationMs: duration,
            outcome,
        };
    }
    else {
        return {
            status: 'error',
            request,
            tool,
            response: {
                callId: request.callId,
                responseParts: [
                    {
                        functionResponse: {
                            id: request.callId,
                            name,
                            response: { error: 'Tool failed' },
                        },
                    },
                ],
                error: error || new Error('Tool failed'),
                errorType: ToolErrorType.UNKNOWN,
                resultDisplay: 'Failure!',
            },
            durationMs: duration,
            outcome,
        };
    }
};
describe('UiTelemetryService', () => {
    let service;
    beforeEach(() => {
        service = new UiTelemetryService();
    });
    it('should have correct initial metrics', () => {
        const metrics = service.getMetrics();
        expect(metrics).toEqual({
            models: {},
            tools: {
                totalCalls: 0,
                totalSuccess: 0,
                totalFail: 0,
                totalDurationMs: 0,
                totalDecisions: {
                    [ToolCallDecision.ACCEPT]: 0,
                    [ToolCallDecision.REJECT]: 0,
                    [ToolCallDecision.MODIFY]: 0,
                    [ToolCallDecision.AUTO_ACCEPT]: 0,
                },
                byName: {},
            },
            files: {
                totalLinesAdded: 0,
                totalLinesRemoved: 0,
            },
        });
        expect(service.getLastPromptTokenCount()).toBe(0);
    });
    it('should emit an update event when an event is added', () => {
        const spy = vi.fn();
        service.on('update', spy);
        const event = {
            'event.name': EVENT_API_RESPONSE,
            model: 'gemini-2.5-pro',
            duration_ms: 500,
            usage: {
                input_token_count: 10,
                output_token_count: 20,
                total_token_count: 30,
                cached_content_token_count: 5,
                thoughts_token_count: 2,
                tool_token_count: 3,
            },
        };
        service.addEvent(event);
        expect(spy).toHaveBeenCalledOnce();
        const { metrics, lastPromptTokenCount } = spy.mock.calls[0][0];
        expect(metrics).toBeDefined();
        expect(lastPromptTokenCount).toBe(0);
    });
    describe('API Response Event Processing', () => {
        it('should process a single ApiResponseEvent', () => {
            const event = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 10,
                    output_token_count: 20,
                    total_token_count: 30,
                    cached_content_token_count: 5,
                    thoughts_token_count: 2,
                    tool_token_count: 3,
                },
            };
            service.addEvent(event);
            const metrics = service.getMetrics();
            expect(metrics.models['gemini-2.5-pro']).toEqual({
                api: {
                    totalRequests: 1,
                    totalErrors: 0,
                    totalLatencyMs: 500,
                },
                tokens: {
                    prompt: 10,
                    candidates: 20,
                    total: 30,
                    cached: 5,
                    thoughts: 2,
                    tool: 3,
                },
            });
            expect(service.getLastPromptTokenCount()).toBe(0);
        });
        it('should aggregate multiple ApiResponseEvents for the same model', () => {
            const event1 = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 10,
                    output_token_count: 20,
                    total_token_count: 30,
                    cached_content_token_count: 5,
                    thoughts_token_count: 2,
                    tool_token_count: 3,
                },
            };
            const event2 = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 600,
                usage: {
                    input_token_count: 15,
                    output_token_count: 25,
                    total_token_count: 40,
                    cached_content_token_count: 10,
                    thoughts_token_count: 4,
                    tool_token_count: 6,
                },
            };
            service.addEvent(event1);
            service.addEvent(event2);
            const metrics = service.getMetrics();
            expect(metrics.models['gemini-2.5-pro']).toEqual({
                api: {
                    totalRequests: 2,
                    totalErrors: 0,
                    totalLatencyMs: 1100,
                },
                tokens: {
                    prompt: 25,
                    candidates: 45,
                    total: 70,
                    cached: 15,
                    thoughts: 6,
                    tool: 9,
                },
            });
            expect(service.getLastPromptTokenCount()).toBe(0);
        });
        it('should handle ApiResponseEvents for different models', () => {
            const event1 = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 10,
                    output_token_count: 20,
                    total_token_count: 30,
                    cached_content_token_count: 5,
                    thoughts_token_count: 2,
                    tool_token_count: 3,
                },
            };
            const event2 = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-flash',
                duration_ms: 1000,
                usage: {
                    input_token_count: 100,
                    output_token_count: 200,
                    total_token_count: 300,
                    cached_content_token_count: 50,
                    thoughts_token_count: 20,
                    tool_token_count: 30,
                },
            };
            service.addEvent(event1);
            service.addEvent(event2);
            const metrics = service.getMetrics();
            expect(metrics.models['gemini-2.5-pro']).toBeDefined();
            expect(metrics.models['gemini-2.5-flash']).toBeDefined();
            expect(metrics.models['gemini-2.5-pro'].api.totalRequests).toBe(1);
            expect(metrics.models['gemini-2.5-flash'].api.totalRequests).toBe(1);
            expect(service.getLastPromptTokenCount()).toBe(0);
        });
    });
    describe('API Error Event Processing', () => {
        it('should process a single ApiErrorEvent', () => {
            const event = {
                'event.name': EVENT_API_ERROR,
                model: 'gemini-2.5-pro',
                duration_ms: 300,
                error: 'Something went wrong',
            };
            service.addEvent(event);
            const metrics = service.getMetrics();
            expect(metrics.models['gemini-2.5-pro']).toEqual({
                api: {
                    totalRequests: 1,
                    totalErrors: 1,
                    totalLatencyMs: 300,
                },
                tokens: {
                    prompt: 0,
                    candidates: 0,
                    total: 0,
                    cached: 0,
                    thoughts: 0,
                    tool: 0,
                },
            });
        });
        it('should aggregate ApiErrorEvents and ApiResponseEvents', () => {
            const responseEvent = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 10,
                    output_token_count: 20,
                    total_token_count: 30,
                    cached_content_token_count: 5,
                    thoughts_token_count: 2,
                    tool_token_count: 3,
                },
            };
            const errorEvent = {
                'event.name': EVENT_API_ERROR,
                model: 'gemini-2.5-pro',
                duration_ms: 300,
                error: 'Something went wrong',
            };
            service.addEvent(responseEvent);
            service.addEvent(errorEvent);
            const metrics = service.getMetrics();
            expect(metrics.models['gemini-2.5-pro']).toEqual({
                api: {
                    totalRequests: 2,
                    totalErrors: 1,
                    totalLatencyMs: 800,
                },
                tokens: {
                    prompt: 10,
                    candidates: 20,
                    total: 30,
                    cached: 5,
                    thoughts: 2,
                    tool: 3,
                },
            });
        });
    });
    describe('Tool Call Event Processing', () => {
        it('should process a single successful ToolCallEvent', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', true, 150, ToolConfirmationOutcome.ProceedOnce);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalCalls).toBe(1);
            expect(tools.totalSuccess).toBe(1);
            expect(tools.totalFail).toBe(0);
            expect(tools.totalDurationMs).toBe(150);
            expect(tools.totalDecisions[ToolCallDecision.ACCEPT]).toBe(1);
            expect(tools.byName['test_tool']).toEqual({
                count: 1,
                success: 1,
                fail: 0,
                durationMs: 150,
                decisions: {
                    [ToolCallDecision.ACCEPT]: 1,
                    [ToolCallDecision.REJECT]: 0,
                    [ToolCallDecision.MODIFY]: 0,
                    [ToolCallDecision.AUTO_ACCEPT]: 0,
                },
            });
        });
        it('should process a single failed ToolCallEvent', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', false, 200, ToolConfirmationOutcome.Cancel);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalCalls).toBe(1);
            expect(tools.totalSuccess).toBe(0);
            expect(tools.totalFail).toBe(1);
            expect(tools.totalDurationMs).toBe(200);
            expect(tools.totalDecisions[ToolCallDecision.REJECT]).toBe(1);
            expect(tools.byName['test_tool']).toEqual({
                count: 1,
                success: 0,
                fail: 1,
                durationMs: 200,
                decisions: {
                    [ToolCallDecision.ACCEPT]: 0,
                    [ToolCallDecision.REJECT]: 1,
                    [ToolCallDecision.MODIFY]: 0,
                    [ToolCallDecision.AUTO_ACCEPT]: 0,
                },
            });
        });
        it('should process a ToolCallEvent with modify decision', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', true, 250, ToolConfirmationOutcome.ModifyWithEditor);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalDecisions[ToolCallDecision.MODIFY]).toBe(1);
            expect(tools.byName['test_tool'].decisions[ToolCallDecision.MODIFY]).toBe(1);
        });
        it('should process a ToolCallEvent without a decision', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', true, 100);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalDecisions).toEqual({
                [ToolCallDecision.ACCEPT]: 0,
                [ToolCallDecision.REJECT]: 0,
                [ToolCallDecision.MODIFY]: 0,
                [ToolCallDecision.AUTO_ACCEPT]: 0,
            });
            expect(tools.byName['test_tool'].decisions).toEqual({
                [ToolCallDecision.ACCEPT]: 0,
                [ToolCallDecision.REJECT]: 0,
                [ToolCallDecision.MODIFY]: 0,
                [ToolCallDecision.AUTO_ACCEPT]: 0,
            });
        });
        it('should aggregate multiple ToolCallEvents for the same tool', () => {
            const toolCall1 = createFakeCompletedToolCall('test_tool', true, 100, ToolConfirmationOutcome.ProceedOnce);
            const toolCall2 = createFakeCompletedToolCall('test_tool', false, 150, ToolConfirmationOutcome.Cancel);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall1)),
                'event.name': EVENT_TOOL_CALL,
            });
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall2)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalCalls).toBe(2);
            expect(tools.totalSuccess).toBe(1);
            expect(tools.totalFail).toBe(1);
            expect(tools.totalDurationMs).toBe(250);
            expect(tools.totalDecisions[ToolCallDecision.ACCEPT]).toBe(1);
            expect(tools.totalDecisions[ToolCallDecision.REJECT]).toBe(1);
            expect(tools.byName['test_tool']).toEqual({
                count: 2,
                success: 1,
                fail: 1,
                durationMs: 250,
                decisions: {
                    [ToolCallDecision.ACCEPT]: 1,
                    [ToolCallDecision.REJECT]: 1,
                    [ToolCallDecision.MODIFY]: 0,
                    [ToolCallDecision.AUTO_ACCEPT]: 0,
                },
            });
        });
        it('should handle ToolCallEvents for different tools', () => {
            const toolCall1 = createFakeCompletedToolCall('tool_A', true, 100);
            const toolCall2 = createFakeCompletedToolCall('tool_B', false, 200);
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall1)),
                'event.name': EVENT_TOOL_CALL,
            });
            service.addEvent({
                ...structuredClone(new ToolCallEvent(toolCall2)),
                'event.name': EVENT_TOOL_CALL,
            });
            const metrics = service.getMetrics();
            const { tools } = metrics;
            expect(tools.totalCalls).toBe(2);
            expect(tools.totalSuccess).toBe(1);
            expect(tools.totalFail).toBe(1);
            expect(tools.byName['tool_A']).toBeDefined();
            expect(tools.byName['tool_B']).toBeDefined();
            expect(tools.byName['tool_A'].count).toBe(1);
            expect(tools.byName['tool_B'].count).toBe(1);
        });
    });
    describe('resetLastPromptTokenCount', () => {
        it('should reset the last prompt token count to 0', () => {
            // First, set up some initial token count
            const event = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 100,
                    output_token_count: 200,
                    total_token_count: 300,
                    cached_content_token_count: 50,
                    thoughts_token_count: 20,
                    tool_token_count: 30,
                },
            };
            service.addEvent(event);
            expect(service.getLastPromptTokenCount()).toBe(0);
            // Now reset the token count
            service.setLastPromptTokenCount(0);
            expect(service.getLastPromptTokenCount()).toBe(0);
        });
        it('should emit an update event when resetLastPromptTokenCount is called', () => {
            const spy = vi.fn();
            service.on('update', spy);
            // Set up initial token count
            const event = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 100,
                    output_token_count: 200,
                    total_token_count: 300,
                    cached_content_token_count: 50,
                    thoughts_token_count: 20,
                    tool_token_count: 30,
                },
            };
            service.addEvent(event);
            spy.mockClear(); // Clear the spy to focus on the reset call
            service.setLastPromptTokenCount(0);
            expect(spy).toHaveBeenCalledOnce();
            const { metrics, lastPromptTokenCount } = spy.mock.calls[0][0];
            expect(metrics).toBeDefined();
            expect(lastPromptTokenCount).toBe(0);
        });
        it('should not affect other metrics when resetLastPromptTokenCount is called', () => {
            // Set up initial state with some metrics
            const event = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 100,
                    output_token_count: 200,
                    total_token_count: 300,
                    cached_content_token_count: 50,
                    thoughts_token_count: 20,
                    tool_token_count: 30,
                },
            };
            service.addEvent(event);
            const metricsBefore = service.getMetrics();
            service.setLastPromptTokenCount(0);
            const metricsAfter = service.getMetrics();
            // Metrics should be unchanged
            expect(metricsAfter).toEqual(metricsBefore);
            // Only the last prompt token count should be reset
            expect(service.getLastPromptTokenCount()).toBe(0);
        });
        it('should work correctly when called multiple times', () => {
            const spy = vi.fn();
            service.on('update', spy);
            // Set up initial token count
            const event = {
                'event.name': EVENT_API_RESPONSE,
                model: 'gemini-2.5-pro',
                duration_ms: 500,
                usage: {
                    input_token_count: 100,
                    output_token_count: 200,
                    total_token_count: 300,
                    cached_content_token_count: 50,
                    thoughts_token_count: 20,
                    tool_token_count: 30,
                },
            };
            service.addEvent(event);
            expect(service.getLastPromptTokenCount()).toBe(0);
            // Reset once
            service.setLastPromptTokenCount(0);
            expect(service.getLastPromptTokenCount()).toBe(0);
            // Reset again - should still be 0 and still emit event
            spy.mockClear();
            service.setLastPromptTokenCount(0);
            expect(service.getLastPromptTokenCount()).toBe(0);
            expect(spy).toHaveBeenCalledOnce();
        });
    });
    describe('Tool Call Event with Line Count Metadata', () => {
        it('should aggregate valid line count metadata', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', true, 100);
            const event = {
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
                metadata: {
                    model_added_lines: 10,
                    model_removed_lines: 5,
                },
            };
            service.addEvent(event);
            const metrics = service.getMetrics();
            expect(metrics.files.totalLinesAdded).toBe(10);
            expect(metrics.files.totalLinesRemoved).toBe(5);
        });
        it('should ignore null/undefined values in line count metadata', () => {
            const toolCall = createFakeCompletedToolCall('test_tool', true, 100);
            const event = {
                ...structuredClone(new ToolCallEvent(toolCall)),
                'event.name': EVENT_TOOL_CALL,
                metadata: {
                    model_added_lines: null,
                    model_removed_lines: undefined,
                },
            };
            service.addEvent(event);
            const metrics = service.getMetrics();
            expect(metrics.files.totalLinesAdded).toBe(0);
            expect(metrics.files.totalLinesRemoved).toBe(0);
        });
    });
});
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