package metadata

import (
	"strings"
	"testing"

	"git.warky.dev/wdevs/amcs/internal/config"
	thoughttypes "git.warky.dev/wdevs/amcs/internal/types"
)

func testCaptureConfig() config.CaptureConfig {
	return config.CaptureConfig{
		Source: "mcp",
		MetadataDefaults: config.CaptureMetadataDefault{
			Type:          "observation",
			TopicFallback: "uncategorized",
		},
	}
}

func TestFallbackUsesConfiguredDefaults(t *testing.T) {
	got := Fallback(testCaptureConfig())
	if got.Type != "observation" {
		t.Fatalf("Fallback type = %q, want observation", got.Type)
	}
	if len(got.Topics) != 1 || got.Topics[0] != "uncategorized" {
		t.Fatalf("Fallback topics = %#v, want [uncategorized]", got.Topics)
	}
	if got.Source != "mcp" {
		t.Fatalf("Fallback source = %q, want mcp", got.Source)
	}
}

func TestNormalizeTrimsDedupesAndCapsTopics(t *testing.T) {
	topics := []string{}
	for i := 0; i < 12; i++ {
		topics = append(topics, strings.TrimSpace(" topic "))
		topics = append(topics, string(rune('a'+i)))
	}

	got := Normalize(thoughttypes.ThoughtMetadata{
		People: []string{" Alice ", "alice", "", "Bob"},
		Topics: topics,
		Type:   "INVALID",
	}, testCaptureConfig())

	if len(got.People) != 2 {
		t.Fatalf("People len = %d, want 2", len(got.People))
	}
	if got.Type != "observation" {
		t.Fatalf("Type = %q, want observation", got.Type)
	}
	if len(got.Topics) != maxTopics {
		t.Fatalf("Topics len = %d, want %d", len(got.Topics), maxTopics)
	}
}

func TestMergeAddsPatchAndNormalizes(t *testing.T) {
	base := thoughttypes.ThoughtMetadata{
		People: []string{"Alice"},
		Topics: []string{"go"},
		Type:   "idea",
		Source: "mcp",
	}
	patch := thoughttypes.ThoughtMetadata{
		People: []string{" Bob ", "alice"},
		Topics: []string{"testing"},
		Type:   "task",
	}

	got := Merge(base, patch, testCaptureConfig())
	if got.Type != "task" {
		t.Fatalf("Type = %q, want task", got.Type)
	}
	if len(got.People) != 2 {
		t.Fatalf("People len = %d, want 2", len(got.People))
	}
	if len(got.Topics) != 2 {
		t.Fatalf("Topics len = %d, want 2", len(got.Topics))
	}
}