local mirko = import "../../kube/mirko.libsonnet";
local kube = import "../../kube/kube.libsonnet";

{
    cfg:: {
        secret: {
            twilio_token: error "twilio_token must be set",
        },
        image: "registry.k0.hswaw.net/q3k/smsgs:1570049853-05c5b491c45de6d960979d4aee8635768f3178e9",
        webhookFQDN: error "webhookFQDN must be set",
    },

    component(cfg, env):: mirko.Component(env, "smsgw") {
        local smsgw = self,
        cfg+: {
            image: cfg.image,
            container: smsgw.GoContainer("main", "/smsgw/smsgw") {
                env_: {
                    TWILIO_TOKEN: kube.SecretKeyRef(smsgw.secret, "twilio_token"),
                },
                command+: [
                    "-twilio_friendly_phone", "48732168371",
                    "-twilio_sid", "AC806ed4bf4b6c80c8f8ea686379b69518",
                    "-twilio_token", "$(TWILIO_TOKEN)",
                    "-webhook_listen", "0.0.0.0:5000",
                    "-webhook_public", "https://%s/" % [ cfg.webhookFQDN ],
                ],
            },
            ports+: {
                publicHTTP: {
                    webhook: {
                        port: 5000,
                        dns: cfg.webhookFQDN,
                    }
                },
            },
        },

        secret: kube.Secret("smsgw") {
            metadata+: smsgw.metadata,
            data: cfg.secret,
        },

        // Temporary machinery to access gRPC from outsite.
        // In the future, this will be handled by a proxy/API gateway.
        // For now, we need this running.
        // TODO(q3k): remove this when we have an API GW or proxy.
        stopgap: {
            local stopgap = self,

            rpcLB: kube.Service("smsgw-tcp-rpc") {
                metadata+: smsgw.metadata,
                target_pod: smsgw.deployment.spec.template,
                spec+: {
                    type: "LoadBalancer",
                    ports: [
                        { name: "grpc-external", port: 443, targetPort: 4200 },
                    ],
                },
            },

            mkClientCert(name, cn):: kube.Certificate(name) {
                metadata+: smsgw.metadata,
                spec: {
                    secretName: name,
                    duration: "35040h0m0s", // 4 years
                    issuerRef: {
                        // Contract with cluster/lib/pki.libsonnet.
                        // Copied over.
                        name: "pki-ca",
                        kind: "ClusterIssuer",
                    },
                    commonName: cn,
                },
            },

            kasownikCert: stopgap.mkClientCert("smsgw-tcp-rpc-consumer", "kasownik.external.hswaw.net"),
            piorekfCert: stopgap.mkClientCert("smsgw-tcp-rpc-piorekf", "piorekf.person.hswaw.net"),
        }
    },
}