prvng_core/nulib/taskservs/discover.nu

#!/usr/bin/env nu

# Taskserv Discovery System (UPDATED for grouped structure)
# Discovers available taskservs with metadata extraction from grouped directories

use ../lib_provisioning/config/accessor.nu config-get

# Discover all available taskservs (updated for grouped structure)
export def discover-taskservs [] {
    # Get absolute path to extensions directory from config
    let taskservs_path = (config-get "paths.taskservs" | path expand)

    if not ($taskservs_path | path exists) {
        error make { msg: $"Taskservs path not found: ($taskservs_path)" }
    }

    # Find taskservs in both flat and grouped structure
    mut taskservs = []

    # Get all items in taskservs directory
    let items = ls $taskservs_path | where type == "dir"

    for item in $items {
        let item_name = ($item.name | path basename)
        let schema_path = ($item.name | path join "nickel")
        let mod_path = ($schema_path | path join "nickel.mod")

        # Check if this is a group directory with nickel/nickel.mod (has applications inside)
        if ($mod_path | path exists) {
            # This is a group - list the applications/profiles inside
            let group_result = (do { ls $item.name } | complete)
            let group_items = if $group_result.exit_code == 0 { $group_result.stdout } else { [] }

            # Get all subdirectories (applications/profiles) except 'nickel' and 'images'
            for subitem in ($group_items | where type == "dir" | where { |it|
                let name = ($it.name | path basename)
                $name != "nickel" and $name != "images"
            }) {
                let app_name = ($subitem.name | path basename)
                let metadata = {
                    name: $app_name
                    type: "taskserv"
                    group: $item_name
                    version: ""
                    schema_path: $schema_path
                    main_schema: ""
                    dependencies: []
                    description: ""
                    available: true
                    last_updated: ($subitem.modified)
                }
                $taskservs = ($taskservs | append $metadata)
            }
        }
    }

    $taskservs | sort-by name
}

# Extract metadata from a taskserv's Nickel module (updated with group info)
def extract_taskserv_metadata [name: string, schema_path: string, group: string] {
    let mod_path = ($schema_path | path join "nickel.mod")

    # Try to parse TOML, skip if corrupted
    let toml_result = (do {
        open $mod_path | from toml
    } | complete)

    if $toml_result.exit_code != 0 {
        print $"⚠️  Skipping ($name): corrupted nickel.mod file"
        return null
    }

    let mod_content = $toml_result.stdout

    # Find Nickel schema files
    let schema_files = (glob ($schema_path | path join "*.ncl"))
    let main_schema = ($schema_files | where ($it | str contains $name) | first | default "")

    # Extract dependencies
    let dependencies = ($mod_content.dependencies? | default {} | columns)

    # Get description from schema file if available
    let description = if ($main_schema != "") {
        extract_schema_description $main_schema
    } else {
        ""
    }

    {
        name: $name
        type: "taskserv"
        group: $group
        version: $mod_content.package.version
        schema_path: $schema_path
        main_schema: $main_schema
        dependencies: $dependencies
        description: $description
        available: true
        last_updated: (ls $mod_path | get 0.modified)
    }
}

# Extract description from Nickel schema file
def extract_schema_description [schema_file: string] {
    if not ($schema_file | path exists) {
        return ""
    }

    # Read first few lines to find description
    let content = (open $schema_file | lines | take 10)
    let description_lines = ($content | where ($it | str starts-with "# ") | take 3)

    if ($description_lines | is-empty) {
        return ""
    }

    $description_lines
    | str replace "^# " ""
    | str join " "
    | str trim
}

# Search taskservs by name or description
export def search-taskservs [query: string] {
    discover-taskservs
    | where ($it.name | str contains $query) or ($it.description | str contains $query)
}

# Get specific taskserv info (updated to search both flat and grouped)
export def get-taskserv-info [name: string] {
    let taskservs = (discover-taskservs)
    let found = ($taskservs | where name == $name | first)

    if ($found | is-empty) {
        error make { msg: $"Taskserv '($name)' not found" }
    }

    $found
}

# List taskservs by group
export def list-taskservs-by-group [group: string] {
    discover-taskservs
    | where group == $group
}

# List all groups
export def list-taskserv-groups [] {
    discover-taskservs
    | get group
    | uniq
    | sort
}

# List taskservs by category/tag (legacy support)
export def list-taskservs-by-tag [tag: string] {
    discover-taskservs
    | where ($it.description | str contains $tag) or ($it.group | str contains $tag)
}

# Validate taskserv availability
export def validate-taskservs [names: list<string>] {
    let available = (discover-taskservs | get name)
    let missing = ($names | where ($it not-in $available))
    let found = ($names | where ($it in $available))

    {
        requested: $names
        found: $found
        missing: $missing
        valid: ($missing | is-empty)
    }
}

# Get taskserv path (helper for tools)
export def get-taskserv-path [name: string] {
    let taskserv_info = get-taskserv-info $name
    let base_path = "/Users/Akasha/project-provisioning/provisioning/extensions/taskservs"

    if $taskserv_info.group == "root" {
        $"($base_path)/($name)"
    } else {
        $"($base_path)/($taskserv_info.group)/($name)"
    }
}