// Package devops defines the rules and composition for the devops agent.
package devops

import (
	"github.com/enmanuel/agents/pkg/decision"
	"github.com/enmanuel/agents/pkg/tools"
)

// Rules returns the decision rules for the devops agent.
// These are pure data — no side effects.
func Rules() []decision.Rule {
	return []decision.Rule{
		{
			Name:  "help",
			Match: decision.MatchCommand("help"),
			Actions: []decision.Action{{
				Kind: decision.ActionKindReply,
				Reply: &decision.ReplyAction{
					Content: "**DevOps Agent** — comandos disponibles:\n" +
						"- `!status <target>` — estado del target\n" +
						"- `!deploy <env>` — deployment en el environment\n" +
						"- `!rollback <env>` — rollback del último deploy\n" +
						"- `!logs <target>` — últimas líneas de log\n" +
						"- `!healthcheck` — health check de producción",
				},
			}},
		},
		{
			Name:  "healthcheck",
			Match: decision.MatchCommand("healthcheck"),
			Actions: []decision.Action{{
				Kind: decision.ActionKindSSH,
				SSH: &tools.SSHCommandSpec{
					Target:  "production",
					Command: "/opt/scripts/healthcheck.sh",
					Timeout: "30s",
				},
			}},
		},
		{
			Name:  "status",
			Match: decision.MatchCommand("status"),
			Actions: []decision.Action{{
				Kind: decision.ActionKindSSH,
				SSH: &tools.SSHCommandSpec{
					Target:  "monitoring",
					Command: "systemctl status --no-pager",
					Timeout: "15s",
				},
			}},
		},
		{
			Name:  "deploy-staging",
			Match: decision.And(decision.MatchCommand("deploy"), func(ctx decision.MessageContext) bool {
				return len(ctx.Args) > 0 && ctx.Args[0] == "staging"
			}),
			Actions: []decision.Action{{
				Kind: decision.ActionKindSSH,
				SSH: &tools.SSHCommandSpec{
					Target:  "staging",
					Command: "cd /app && git pull origin main && systemctl restart app",
					Timeout: "60s",
				},
			}},
		},
		{
			Name:  "deploy-production",
			Match: decision.And(
				decision.MatchCommand("deploy"),
				decision.MatchMinPowerLevel(50),
				func(ctx decision.MessageContext) bool {
					return len(ctx.Args) > 0 && ctx.Args[0] == "production"
				},
			),
			Actions: []decision.Action{{
				Kind: decision.ActionKindSSH,
				SSH: &tools.SSHCommandSpec{
					Target:  "production",
					Command: "cd /app && git pull origin main && systemctl restart app",
					Timeout: "120s",
				},
			}},
		},
		{
			Name:  "logs",
			Match: decision.MatchCommand("logs"),
			Actions: []decision.Action{{
				Kind: decision.ActionKindSSH,
				SSH: &tools.SSHCommandSpec{
					Target:  "production",
					Command: "journalctl -u app -n 50 --no-pager",
					Timeout: "15s",
				},
			}},
		},
		// Fallback: anything else goes to LLM
		{
			Name:  "llm-fallback",
			Match: decision.And(
				decision.MatchAny(),
				func(ctx decision.MessageContext) bool {
					return ctx.Command == "" && (ctx.IsMention || ctx.IsDirectMsg)
				},
			),
			Actions: []decision.Action{{
				Kind: decision.ActionKindLLM,
				LLM:  &decision.LLMAction{},
			}},
		},
	}
}