package recon

import (
	"context"
	"time"

	"golang.org/x/time/rate"
)

// ExampleSource is a deterministic stub ReconSource used to prove the Engine
// fanout pipeline end-to-end. Phases 10-16 replace this with real sources
// (Shodan, GitHub, Pastebin, ...).
type ExampleSource struct{}

// Name returns the stable identifier used for SourceType routing.
func (ExampleSource) Name() string { return "example" }

// RateLimit returns a conservative 10 req/s (only matters once wired to a
// LimiterRegistry in plan 09-02; ExampleSource does no real network I/O).
func (ExampleSource) RateLimit() rate.Limit { return rate.Limit(10) }

// Burst returns the token bucket burst size.
func (ExampleSource) Burst() int { return 1 }

// RespectsRobots reports false: this stub performs no HTTP fetches.
func (ExampleSource) RespectsRobots() bool { return false }

// Enabled always returns true so the stub participates in SweepAll by default.
func (ExampleSource) Enabled(_ Config) bool { return true }

// Sweep emits two deterministic fake Findings tagged with SourceType
// "recon:example". The query argument is intentionally ignored.
func (ExampleSource) Sweep(ctx context.Context, _ string, out chan<- Finding) error {
	now := time.Now()
	fakes := []Finding{
		{
			ProviderName: "openai",
			KeyMasked:    "sk-examp...AAAA",
			Confidence:   "low",
			Source:       "https://example.invalid/a",
			SourceType:   "recon:example",
			DetectedAt:   now,
		},
		{
			ProviderName: "anthropic",
			KeyMasked:    "sk-ant-e...BBBB",
			Confidence:   "low",
			Source:       "https://example.invalid/b",
			SourceType:   "recon:example",
			DetectedAt:   now,
		},
	}
	for _, f := range fakes {
		select {
		case out <- f:
		case <-ctx.Done():
			return ctx.Err()
		}
	}
	return nil
}
