#r "/opt/fsi/packages/Oci.dll"
#load "contract.fsx"

open System
open System.IO
open System.Text.Json
open Contract
open Quorate.Oci

let revision = Environment.GetEnvironmentVariable "SOURCE_REVISION"
let targets = Environment.GetEnvironmentVariable "TARGETS" |> decode<Target array>
let repository = "quorate/project-delivery-controller"
let layout = "/handoff/layout"
let digest = File.ReadAllText("/handoff/image-digest").Trim()

require (validRevision revision) "invalid source revision"
require (validDigest digest) "invalid image digest"

require
    (targets.Length = 1
     && targets[0].Kind = "QuayOCI"
     && targets[0].Repository = repository)
    "invalid delivery target"

let publish () =
    let auth = RegistryAuth.Load("/auth/.dockerconfigjson", "registry.quorate.internal")
    use root = Registry.LoadRoot "/registry-ca/ca.crt"
    use registry = new Registry(Uri("https://registry.quorate.internal"), auth, root)

    registry
        .PushAsync(repository, layout, "delivery", $"delivery-{revision}", cancellationToken)
        .GetAwaiter()
        .GetResult()

let published = publish ()

require (published = digest) "published digest mismatch"
directory "/result" |> ignore

File.WriteAllText(
    "/result/delivery-result",
    JsonSerializer.Serialize(
        { SourceRevision = revision
          Targets =
            [| { Kind = "QuayOCI"
                 Repository = repository
                 Reference = $"registry.quorate.internal/{repository}@{digest}" } |] },
        json
    )
)

printfn "publish=%s digest=%s" repository digest