# fish completion for ssr — System Sync & Restore.
# Install: drop into ~/.config/fish/completions/ssr.fish

set -l ssr_cmds install sync restore update schedule config completions status version help

# True when no subcommand has been picked yet (only flags / option-args seen so far).
function __ssr_needs_subcmd
    set -l tokens (commandline -opc)
    set -l skip_next 0
    for tok in $tokens[2..-1]
        if test $skip_next -eq 1
            set skip_next 0
            continue
        end
        switch $tok
            case -c --config
                set skip_next 1
            case '-*'
                # ignore other flags
            case '*'
                return 1
        end
    end
    return 0
end

# True when the chosen subcommand equals $argv[1].
function __ssr_using_subcmd
    set -l target $argv[1]
    set -l tokens (commandline -opc)
    set -l skip_next 0
    for tok in $tokens[2..-1]
        if test $skip_next -eq 1
            set skip_next 0
            continue
        end
        switch $tok
            case -c --config
                set skip_next 1
            case '-*'
            case '*'
                test "$tok" = "$target"; and return 0
                return 1
        end
    end
    return 1
end

# Global flags
complete -c ssr -s c -l config -d 'Config file path' -r -F
complete -c ssr -s h -l help   -d 'Show help'

# Subcommands
complete -c ssr -n __ssr_needs_subcmd -a install     -d 'First-time install'
complete -c ssr -n __ssr_needs_subcmd -a sync        -d 'Run a backup → cloud'
complete -c ssr -n __ssr_needs_subcmd -a restore     -d 'Restore a machine'
complete -c ssr -n __ssr_needs_subcmd -a update      -d 'Pull latest ssr code'
complete -c ssr -n __ssr_needs_subcmd -a schedule    -d 'Manage launchd schedule'
complete -c ssr -n __ssr_needs_subcmd -a config      -d 'Show/edit config'
complete -c ssr -n __ssr_needs_subcmd -a completions -d 'Install shell completions'
complete -c ssr -n __ssr_needs_subcmd -a status      -d 'Show state summary'
complete -c ssr -n __ssr_needs_subcmd -a version     -d 'Print version'
complete -c ssr -n __ssr_needs_subcmd -a help        -d 'Show top-level help'

# Per-subcommand args
complete -c ssr -n '__ssr_using_subcmd restore' -F
complete -c ssr -n '__ssr_using_subcmd update'  -s n -l dry-run -d 'Preview without pulling'

complete -c ssr -n '__ssr_using_subcmd schedule' -a 'on off status'
complete -c ssr -n '__ssr_using_subcmd config'   -a 'show edit path'
complete -c ssr -n '__ssr_using_subcmd completions' -a 'install uninstall status'