package storage

import (
	"encoding/json"
	"strings"
	"testing"

	"github.com/thepeterstone/claudomator/internal/role"
)

func TestSeedRoleConfigs_CreatesAndActivatesBuilder(t *testing.T) {
	db := testDB(t)

	if err := db.SeedRoleConfigs(); err != nil {
		t.Fatalf("SeedRoleConfigs: %v", err)
	}

	row, err := db.GetActiveRoleConfig("builder")
	if err != nil {
		t.Fatalf("GetActiveRoleConfig(builder): %v", err)
	}
	if row.Version != 1 {
		t.Errorf("expected version 1, got %d", row.Version)
	}
	if row.ProposedBy != "seed" {
		t.Errorf("expected proposed_by 'seed', got %q", row.ProposedBy)
	}

	var cfg role.RoleConfig
	if err := json.Unmarshal([]byte(row.ConfigJSON), &cfg); err != nil {
		t.Fatalf("unmarshal seeded config: %v", err)
	}
	if cfg.Role != "builder" {
		t.Errorf("cfg.Role = %q, want builder", cfg.Role)
	}
	if cfg.SystemPrompt == "" {
		t.Error("cfg.SystemPrompt is empty, want the decompose-or-implement guidance")
	}
	if len(cfg.EscalationLadder) != 2 {
		t.Fatalf("expected 2 escalation tiers, got %d", len(cfg.EscalationLadder))
	}
	if cfg.EscalationLadder[0].Candidates[0].Provider != "claude" {
		t.Errorf("tier 0 provider = %q, want claude", cfg.EscalationLadder[0].Candidates[0].Provider)
	}
}

// TestSeedRoleConfigs_CreatesAndActivatesPlanner proves the arbitration
// role's system prompt is seeded too (added 2026-07-11 alongside
// finalizeArbitration's fail-closed default -- see that const's doc
// comment for why: a live run showed an arbitration agent with no system
// prompt at all never called report_verdict). Specifically checks the
// prompt actually names the report_verdict tool, since that's the whole
// point of this seed.
func TestSeedRoleConfigs_CreatesAndActivatesPlanner(t *testing.T) {
	db := testDB(t)

	if err := db.SeedRoleConfigs(); err != nil {
		t.Fatalf("SeedRoleConfigs: %v", err)
	}

	row, err := db.GetActiveRoleConfig("planner")
	if err != nil {
		t.Fatalf("GetActiveRoleConfig(planner): %v", err)
	}
	if row.Version != 1 {
		t.Errorf("expected version 1, got %d", row.Version)
	}

	var cfg role.RoleConfig
	if err := json.Unmarshal([]byte(row.ConfigJSON), &cfg); err != nil {
		t.Fatalf("unmarshal seeded config: %v", err)
	}
	if cfg.Role != "planner" {
		t.Errorf("cfg.Role = %q, want planner", cfg.Role)
	}
	if !strings.Contains(cfg.SystemPrompt, "report_verdict") {
		t.Error("cfg.SystemPrompt does not mention report_verdict -- the whole point of this seed is mandating that call")
	}
	if len(cfg.EscalationLadder) != 2 {
		t.Fatalf("expected 2 escalation tiers, got %d", len(cfg.EscalationLadder))
	}
}

func TestSeedRoleConfigs_Idempotent_DoesNotDuplicateOrOverwrite(t *testing.T) {
	db := testDB(t)

	if err := db.SeedRoleConfigs(); err != nil {
		t.Fatalf("first SeedRoleConfigs: %v", err)
	}
	if err := db.SeedRoleConfigs(); err != nil {
		t.Fatalf("second SeedRoleConfigs: %v", err)
	}

	for _, r := range []string{"builder", "planner"} {
		versions, err := db.ListRoleConfigVersions(r)
		if err != nil {
			t.Fatalf("ListRoleConfigVersions(%s): %v", r, err)
		}
		if len(versions) != 1 {
			t.Fatalf("%s: expected exactly 1 version after calling SeedRoleConfigs twice, got %d", r, len(versions))
		}
	}
}

func TestSeedRoleConfigs_DoesNotOverwriteHumanCustomizedVersion(t *testing.T) {
	db := testDB(t)

	// A human (or the retro role's propose_role_config tool) already
	// created and activated their own version before the seed ever ran.
	custom, err := db.CreateRoleConfig("builder", `{"role":"builder","system_prompt":"custom prompt"}`, "human")
	if err != nil {
		t.Fatalf("CreateRoleConfig: %v", err)
	}
	if err := db.ActivateRoleConfigVersion("builder", custom.Version); err != nil {
		t.Fatalf("ActivateRoleConfigVersion: %v", err)
	}

	if err := db.SeedRoleConfigs(); err != nil {
		t.Fatalf("SeedRoleConfigs: %v", err)
	}

	row, err := db.GetActiveRoleConfig("builder")
	if err != nil {
		t.Fatalf("GetActiveRoleConfig: %v", err)
	}
	if row.ProposedBy != "human" {
		t.Errorf("active role config proposed_by = %q, want unchanged 'human' -- seed must not overwrite a human-authored active version", row.ProposedBy)
	}

	versions, err := db.ListRoleConfigVersions("builder")
	if err != nil {
		t.Fatalf("ListRoleConfigVersions: %v", err)
	}
	if len(versions) != 1 {
		t.Fatalf("expected exactly 1 version (seed must not create a competing draft), got %d", len(versions))
	}
}