//go:build integration

package integration

import (
	"context"
	"testing"

	"github.com/google/uuid"

	"github.com/missionworkforce/missionmatch/internal/platform/database/dbgen"
	"github.com/missionworkforce/missionmatch/internal/platform/extraction"
	"github.com/missionworkforce/missionmatch/internal/platform/sourcing"
)

func candidateOrgCount(t *testing.T, org uuid.UUID) int {
	t.Helper()
	var n int
	if err := migrator.QueryRow(context.Background(),
		"SELECT count(*) FROM candidates WHERE organization_id=$1 AND deleted_at IS NULL", org).Scan(&n); err != nil {
		t.Fatalf("candidate count: %v", err)
	}
	return n
}

func skillNamesFor(t *testing.T, candID uuid.UUID) map[string]bool {
	t.Helper()
	rows, err := migrator.Query(context.Background(),
		"SELECT s.name FROM candidate_skills cs JOIN skills s ON s.id=cs.skill_id WHERE cs.candidate_id=$1", candID)
	if err != nil {
		t.Fatalf("skill names: %v", err)
	}
	defer rows.Close()
	out := map[string]bool{}
	for rows.Next() {
		var n string
		_ = rows.Scan(&n)
		out[n] = true
	}
	return out
}

// TestSourcedIngestStructuredSkills proves a sourced lead becomes a real scoring input: structured skill
// rows from the provider feed and an agency extracted from the profile text, on a freshly created person.
func TestSourcedIngestStructuredSkills(t *testing.T) {
	ctx := context.Background()
	org := seedOrg(t)
	q := dbgen.New(migrator)
	ext := extraction.NewDeterministic()

	sp := sourcing.SourcedPerson{
		ExternalID: "pdl-" + uuid.NewString(),
		FullName:   "Ada Sourced",
		JobTitle:   "Cyber Engineer supporting the Air Force",
		Location:   "Honolulu, HI",
		Skills:     []string{"Python", "AWS", "Splunk"},
		Years:      9,
	}
	id, err := sourcing.IngestPerson(ctx, q, org, sp, ext)
	if err != nil {
		t.Fatalf("IngestPerson: %v", err)
	}
	if id == uuid.Nil || candidateOrgCount(t, org) != 1 {
		t.Fatalf("expected exactly one new candidate")
	}
	skills := skillNamesFor(t, id)
	for _, want := range []string{"Python", "AWS", "Splunk"} {
		if !skills[want] {
			t.Errorf("structured skill %q not written; got %v", want, skills)
		}
	}
	var agencyN int
	if err := migrator.QueryRow(ctx,
		"SELECT count(*) FROM candidate_customer_experience WHERE candidate_id=$1 AND agency='Air Force'", id).Scan(&agencyN); err != nil {
		t.Fatalf("agency count: %v", err)
	}
	if agencyN != 1 {
		t.Errorf("expected the Air Force agency extracted from the profile text, got %d", agencyN)
	}
}

// TestSourcedIngestDedupByEmail proves identity resolution merges a sourced lead into an existing person
// with the same email instead of creating a duplicate, enriching them rather than clobbering.
func TestSourcedIngestDedupByEmail(t *testing.T) {
	ctx := context.Background()
	org := seedOrg(t)
	q := dbgen.New(migrator)
	ext := extraction.NewDeterministic()

	email := "merge@example.com"
	bench, err := q.CreateCandidate(ctx, dbgen.CreateCandidateParams{
		OrganizationID: org, FullName: "Bench Person", Email: &email,
		ClearanceLevel: "secret", ClearancePoly: "none", ClearanceStatus: "active", Available: true,
	})
	if err != nil {
		t.Fatalf("seed bench candidate: %v", err)
	}
	before := candidateOrgCount(t, org)

	sp := sourcing.SourcedPerson{
		ExternalID: "pdl-merge-1", FullName: "Bench Person (PDL)", Emails: []string{email},
		Skills: []string{"Go"}, Years: 5,
	}
	id, err := sourcing.IngestPerson(ctx, q, org, sp, ext)
	if err != nil {
		t.Fatalf("IngestPerson: %v", err)
	}
	if id != bench.ID {
		t.Fatalf("expected merge into the existing person %s, got a different id %s", bench.ID, id)
	}
	if after := candidateOrgCount(t, org); after != before {
		t.Fatalf("dedup failed: candidate count went %d to %d (a duplicate was created)", before, after)
	}
	// Enriched: the external id is linked and the new skill is added, without clobbering the name.
	var extID, name string
	if err := migrator.QueryRow(ctx, "SELECT COALESCE(external_id,''), full_name FROM candidates WHERE id=$1", bench.ID).Scan(&extID, &name); err != nil {
		t.Fatalf("read merged: %v", err)
	}
	if extID != "pdl-merge-1" {
		t.Errorf("external id not linked on merge: %q", extID)
	}
	if name != "Bench Person" {
		t.Errorf("merge must not clobber the curated name, got %q", name)
	}
	if !skillNamesFor(t, bench.ID)["Go"] {
		t.Errorf("sourced skill not added on merge")
	}
}