package db

import (
	"testing"

	"git.wntrmute.dev/mc/mcr/internal/policy"
)

func TestLoadEnabledPolicyRules(t *testing.T) {
	d := openTestDB(t)
	if err := d.Migrate(); err != nil {
		t.Fatalf("Migrate: %v", err)
	}

	// Insert two enabled rules and one disabled rule.
	_, err := d.Exec(`INSERT INTO policy_rules (priority, description, rule_json, enabled)
		VALUES (50, 'CI push/pull', '{"effect":"allow","subject_uuid":"ci-uuid","actions":["registry:push","registry:pull"],"repositories":["production/*"]}', 1)`)
	if err != nil {
		t.Fatalf("insert rule 1: %v", err)
	}

	_, err = d.Exec(`INSERT INTO policy_rules (priority, description, rule_json, enabled)
		VALUES (10, 'deny delete', '{"effect":"deny","subject_uuid":"ci-uuid","actions":["registry:delete"]}', 1)`)
	if err != nil {
		t.Fatalf("insert rule 2: %v", err)
	}

	_, err = d.Exec(`INSERT INTO policy_rules (priority, description, rule_json, enabled)
		VALUES (50, 'disabled rule', '{"effect":"allow","actions":["registry:catalog"]}', 0)`)
	if err != nil {
		t.Fatalf("insert rule 3 (disabled): %v", err)
	}

	rules, err := d.LoadEnabledPolicyRules()
	if err != nil {
		t.Fatalf("LoadEnabledPolicyRules: %v", err)
	}

	// Only 2 enabled rules should be returned.
	if len(rules) != 2 {
		t.Fatalf("rule count: got %d, want 2", len(rules))
	}

	// Rules should be ordered by priority ascending.
	if rules[0].Priority != 10 {
		t.Fatalf("first rule priority: got %d, want 10", rules[0].Priority)
	}
	if rules[0].Effect != policy.Deny {
		t.Fatalf("first rule effect: got %s, want deny", rules[0].Effect)
	}

	if rules[1].Priority != 50 {
		t.Fatalf("second rule priority: got %d, want 50", rules[1].Priority)
	}
	if rules[1].SubjectUUID != "ci-uuid" {
		t.Fatalf("second rule subject: got %q, want %q", rules[1].SubjectUUID, "ci-uuid")
	}
	if len(rules[1].Actions) != 2 {
		t.Fatalf("second rule actions: got %d, want 2", len(rules[1].Actions))
	}
	if len(rules[1].Repositories) != 1 || rules[1].Repositories[0] != "production/*" {
		t.Fatalf("second rule repositories: got %v, want [production/*]", rules[1].Repositories)
	}
}

func TestLoadEnabledPolicyRulesEmpty(t *testing.T) {
	d := openTestDB(t)
	if err := d.Migrate(); err != nil {
		t.Fatalf("Migrate: %v", err)
	}

	rules, err := d.LoadEnabledPolicyRules()
	if err != nil {
		t.Fatalf("LoadEnabledPolicyRules: %v", err)
	}
	if rules != nil {
		t.Fatalf("rules: got %v, want nil", rules)
	}
}