#!/usr/bin/env nu
# Thin entry for workflow commands. Loads only workflow.nu + targeted lib_provisioning.

export-env {
    let lib_dirs_raw = ($env.NU_LIB_DIRS? | default "")
    let current_lib_dirs = if ($lib_dirs_raw | type) == "string" {
        if ($lib_dirs_raw | is-empty) { [] } else { ($lib_dirs_raw | split row ":") }
    } else {
        $lib_dirs_raw
    }
    let dynamic = ($env.PROVISIONING? | default "" | path join "core" "nulib")
    $env.NU_LIB_DIRS = ([
        "/opt/provisioning/core/nulib"
        "/usr/local/provisioning/core/nulib"
    ] | append $current_lib_dirs | append (if ($dynamic | is-not-empty) { [$dynamic] } else { [] }))
}

use orchestration/workflow.nu *

def main [
    ...args: string
    --workspace (-w): string = ""
    --infra (-i): string = ""
    --dry-run (-n)
    --notitles
    --debug (-x)
]: nothing -> nothing {
    if $debug { $env.PROVISIONING_DEBUG = true }

    let rest = if (($args | length) > 0) and (($args | first) in ["workflow", "wflow", "w"]) {
        $args | skip 1
    } else {
        $args
    }
    let sub  = ($rest | get 0? | default "")
    let arg1 = ($rest | get 1? | default "")

    let help_text = {
        print "Workflow Management"
        print "==================="
        print ""
        print "Usage: prvng workflow <subcommand> [options]"
        print ""
        print "Subcommands:"
        print "  list                        List WorkflowDef entries in the workspace   (alias: ls, l)"
        print "  status <id>                 Show workflow status                        (alias: st)"
        print "  run    <id>                 Execute a workflow                          (alias: r)"
        print "  validate                    Validate WorkflowDef references             (alias: v)"
        print ""
        print "Flags:"
        print "  --workspace (-w) <name>     Workspace name (defaults to active)"
        print "  --infra (-i) <name>         Infra subdirectory (run only)"
        print "  --dry-run (-n)              Print execution plan without running (run only)"
        print ""
        print "Examples:"
        print "  prvng w l"
        print "  prvng workflow status deploy-services"
        print "  prvng w run deploy-services --dry-run"
    }

    match $sub {
        "" | "help" | "h" | "-h" | "--help" => { do $help_text }
        "list" | "ls" | "l" => {
            main workflow list --workspace $workspace
        }
        "status" | "st" => {
            if ($arg1 | is-empty) {
                print "Error: workflow status requires a workflow id"
                print "Usage: prvng workflow status <id>"
                return
            }
            main workflow status $arg1 --workspace $workspace
        }
        "run" | "r" => {
            if ($arg1 | is-empty) {
                print "Error: workflow run requires a workflow id"
                print "Usage: prvng workflow run <id>"
                return
            }
            main workflow run $arg1 --workspace $workspace --infra $infra --dry-run=$dry_run
        }
        "validate" | "v" => {
            main workflow validate --workspace $workspace
        }
        _ => {
            print $"Unknown workflow subcommand: ($sub)"
            print ""
            do $help_text
        }
    }
}