382 lines
12 KiB
Go
382 lines
12 KiB
Go
package cli
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import (
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"context"
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"flag"
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"fmt"
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"io"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/app"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
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"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
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)
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const helpText = `weatherreporter prepares weather reports from normalized forecast data.
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Usage:
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weatherreporter --help
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weatherreporter generate daily --date YYYY-MM-DD [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
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weatherreporter generate today [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] [--date YYYY-MM-DD]
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weatherreporter generate tomorrow [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
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weatherreporter generate hourly [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
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weatherreporter generate three-day [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
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weatherreporter generate weekend [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
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weatherreporter generate storm [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] --start TIME --end TIME
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weatherreporter run morning [--config PATH] [--units VALUE] [--tz NAME] [--out-dir PATH]
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weatherreporter run evening [--config PATH] [--units VALUE] [--tz NAME] [--out-dir PATH]
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weatherreporter inspect reports [--config PATH] [--limit N]
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weatherreporter inspect metadata [--config PATH] RUN_ID
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weatherreporter inspect modules [--config PATH] RUN_ID
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weatherreporter inspect data-package [--config PATH] RUN_ID
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weatherreporter inspect prior [--config PATH] RUN_ID
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weatherreporter inspect sources [--config PATH] RUN_ID
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Options:
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-h, --help Show this help message.
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--config PATH Load configuration from PATH instead of /usr/local/etc/weatherreporter/config.yml.
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--units VALUE Override weather API units.
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--tz NAME Override weather API timezone.
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--out PATH Write an extra Markdown report copy where supported by the generate command.
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--out-dir PATH Write extra Markdown report copies for run commands.
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`
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type Runner struct {
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Clock timeutil.Clock
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}
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func Run(ctx context.Context, args []string, stdout io.Writer, stderr io.Writer) error {
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return Runner{Clock: timeutil.SystemClock{}}.Run(ctx, args, stdout, stderr)
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}
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func (r Runner) Run(ctx context.Context, args []string, stdout io.Writer, stderr io.Writer) error {
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if r.Clock == nil {
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r.Clock = timeutil.SystemClock{}
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}
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if len(args) == 0 || args[0] == "--help" || args[0] == "-h" {
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_, err := fmt.Fprint(stdout, helpText)
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return err
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}
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switch args[0] {
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case "generate":
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req, opts, err := r.resolveGenerateAction(args[1:])
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if err != nil {
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return err
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}
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result, err := app.GenerateDetailed(ctx, req)
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if result != nil {
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summary := newGenerateSummary(result, err)
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if encodeErr := writeActionResult(stdout, stderr, summary, outputOptions{Quiet: opts.Quiet}, nil); encodeErr != nil {
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return encodeErr
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}
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}
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return err
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case "run":
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req, opts, err := r.resolveRunAction(args[1:])
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if err != nil {
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return err
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}
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result, err := app.RunBatchDetailed(ctx, req)
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if result != nil {
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summary := newBatchSummary(result)
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if encodeErr := writeActionResult(stdout, stderr, summary, outputOptions{Quiet: opts.Quiet}, func(w io.Writer) {
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writeBatchStatus(w, result)
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}); encodeErr != nil {
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return encodeErr
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}
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if summary.Status == summaryStatusFailed {
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return app.BatchError{Result: result}
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}
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}
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return err
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case "inspect":
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return r.runInspect(ctx, args[1:], stdout)
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default:
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return fmt.Errorf("unknown command %q", args[0])
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}
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}
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type commonOptions struct {
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ConfigPath string
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Units string
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Timezone string
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Output string
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OutputDir string
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Quiet bool
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}
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type generateOptions struct {
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commonOptions
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Date string
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Start string
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End string
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}
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type inspectOptions struct {
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ConfigPath string
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Limit int
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RunID string
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}
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type inspectRunCommand struct {
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Name string
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Inspect func(context.Context, app.InspectRunRequest) (any, error)
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}
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var inspectRunCommands = []inspectRunCommand{
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{Name: "metadata", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
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return app.InspectMetadata(ctx, req)
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}},
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{Name: "modules", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
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return app.InspectModules(ctx, req)
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}},
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{Name: "data-package", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
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return app.InspectDataPackage(ctx, req)
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}},
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{Name: "prior", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
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return app.InspectPriorSnapshot(ctx, req)
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}},
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{Name: "sources", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
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return app.InspectSources(ctx, req)
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}},
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}
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func (r Runner) runInspect(ctx context.Context, args []string, stdout io.Writer) error {
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if len(args) == 0 {
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return fmt.Errorf("inspect requires a command")
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}
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command := args[0]
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switch command {
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case "reports":
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opts, err := parseInspectReportsFlags(args[1:])
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if err != nil {
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return err
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}
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cfg, err := config.Load(config.LoadOptions{Path: opts.ConfigPath})
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if err != nil {
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return err
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}
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records, err := app.InspectReports(ctx, app.InspectReportsRequest{Config: cfg, Limit: opts.Limit})
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if err != nil {
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return err
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}
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return writeJSON(stdout, records)
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default:
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for _, candidate := range inspectRunCommands {
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if candidate.Name == command {
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return runInspectRunCommand(ctx, stdout, candidate, args[1:])
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}
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}
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return fmt.Errorf("unknown inspect command %q", command)
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}
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}
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func runInspectRunCommand(ctx context.Context, stdout io.Writer, command inspectRunCommand, args []string) error {
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opts, err := parseInspectRunFlags(command.Name, args)
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if err != nil {
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return err
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}
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cfg, err := config.Load(config.LoadOptions{Path: opts.ConfigPath})
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if err != nil {
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return err
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}
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value, err := command.Inspect(ctx, app.InspectRunRequest{Config: cfg, RunID: opts.RunID})
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if err != nil {
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return err
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}
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return writeJSON(stdout, value)
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}
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func (r Runner) resolveGenerate(args []string) (app.GenerateRequest, error) {
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req, _, err := r.resolveGenerateAction(args)
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return req, err
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}
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func (r Runner) resolveGenerateAction(args []string) (app.GenerateRequest, commonOptions, error) {
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if r.Clock == nil {
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r.Clock = timeutil.SystemClock{}
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}
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if len(args) == 0 {
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return app.GenerateRequest{}, commonOptions{}, fmt.Errorf("generate requires a report name")
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}
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if _, err := report.IDForCommandName(args[0]); err != nil {
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return app.GenerateRequest{}, commonOptions{}, fmt.Errorf("unknown generate report %q", args[0])
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}
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reportKind := app.ReportKind(args[0])
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opts, err := parseGenerateFlags(reportKind, args[1:])
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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cfg, err := config.Load(config.LoadOptions{
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Path: opts.ConfigPath,
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Units: opts.Units,
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Timezone: opts.Timezone,
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})
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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location, err := timeutil.LoadLocation(cfg.WeatherAPI.Timezone)
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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req := app.GenerateRequest{
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Config: cfg,
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Report: reportKind,
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OutputPath: opts.Output,
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Now: r.Clock.Now(),
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}
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switch reportKind {
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case app.ReportDaily:
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if opts.Date == "" {
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return app.GenerateRequest{}, commonOptions{}, fmt.Errorf("generate daily requires --date YYYY-MM-DD")
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}
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req.Date, err = timeutil.ParseLocalDate(opts.Date, location)
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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case app.ReportToday:
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if opts.Date == "" {
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req.Date = timeutil.LocalDate(r.Clock.Now(), location)
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} else {
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req.Date, err = timeutil.ParseLocalDate(opts.Date, location)
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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}
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case app.ReportStorm:
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if opts.Start == "" {
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return app.GenerateRequest{}, commonOptions{}, fmt.Errorf("generate storm requires --start")
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}
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if opts.End == "" {
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return app.GenerateRequest{}, commonOptions{}, fmt.Errorf("generate storm requires --end")
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}
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period, err := report.ParseStormPeriod(opts.Start, opts.End, location)
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if err != nil {
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return app.GenerateRequest{}, commonOptions{}, err
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}
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req.StormStart = period.Start
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req.StormEnd = period.End
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}
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return req, opts.commonOptions, nil
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}
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func (r Runner) resolveRun(args []string) (app.BatchRequest, error) {
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req, _, err := r.resolveRunAction(args)
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return req, err
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}
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func (r Runner) resolveRunAction(args []string) (app.BatchRequest, commonOptions, error) {
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if r.Clock == nil {
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r.Clock = timeutil.SystemClock{}
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}
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if len(args) == 0 {
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return app.BatchRequest{}, commonOptions{}, fmt.Errorf("run requires a batch name")
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}
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if _, err := report.BatchForCommandName(args[0]); err != nil {
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return app.BatchRequest{}, commonOptions{}, fmt.Errorf("unknown run batch %q", args[0])
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}
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batch := app.BatchKind(args[0])
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opts, err := parseRunFlags(args[1:])
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if err != nil {
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return app.BatchRequest{}, commonOptions{}, err
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}
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cfg, err := config.Load(config.LoadOptions{
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Path: opts.ConfigPath,
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Units: opts.Units,
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Timezone: opts.Timezone,
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})
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if err != nil {
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return app.BatchRequest{}, commonOptions{}, err
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}
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return app.BatchRequest{Config: cfg, Batch: batch, Now: r.Clock.Now(), OutputDir: opts.OutputDir}, opts, nil
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}
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func resolveRun(args []string) (app.BatchRequest, error) {
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return Runner{Clock: timeutil.SystemClock{}}.resolveRun(args)
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}
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func parseGenerateFlags(report app.ReportKind, args []string) (generateOptions, error) {
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fs := flag.NewFlagSet("generate "+string(report), flag.ContinueOnError)
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fs.SetOutput(io.Discard)
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opts := generateOptions{}
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addCommonFlags(fs, &opts.commonOptions, true)
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fs.BoolVar(&opts.Quiet, "quiet", false, "suppress successful action output")
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if report == app.ReportDaily || report == app.ReportToday {
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fs.StringVar(&opts.Date, "date", "", "report date in YYYY-MM-DD")
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}
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if report == app.ReportStorm {
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fs.StringVar(&opts.Start, "start", "", "storm start time")
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fs.StringVar(&opts.End, "end", "", "storm end time")
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}
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if err := fs.Parse(args); err != nil {
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return generateOptions{}, err
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}
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if fs.NArg() > 0 {
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return generateOptions{}, fmt.Errorf("unexpected argument %q", fs.Arg(0))
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}
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return opts, nil
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}
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func parseRunFlags(args []string) (commonOptions, error) {
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fs := flag.NewFlagSet("run", flag.ContinueOnError)
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fs.SetOutput(io.Discard)
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opts := commonOptions{}
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addCommonFlags(fs, &opts, false)
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fs.StringVar(&opts.OutputDir, "out-dir", "", "extra Markdown report copy directory")
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fs.BoolVar(&opts.Quiet, "quiet", false, "suppress successful action output")
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if err := fs.Parse(args); err != nil {
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return commonOptions{}, err
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}
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if fs.NArg() > 0 {
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return commonOptions{}, fmt.Errorf("unexpected argument %q", fs.Arg(0))
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}
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return opts, nil
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}
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func parseInspectReportsFlags(args []string) (inspectOptions, error) {
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fs := flag.NewFlagSet("inspect reports", flag.ContinueOnError)
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fs.SetOutput(io.Discard)
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opts := inspectOptions{Limit: 20}
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fs.StringVar(&opts.ConfigPath, "config", "", "configuration file path")
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fs.IntVar(&opts.Limit, "limit", 20, "maximum reports to list")
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if err := fs.Parse(args); err != nil {
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return inspectOptions{}, err
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}
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if fs.NArg() > 0 {
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return inspectOptions{}, fmt.Errorf("unexpected argument %q", fs.Arg(0))
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}
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if opts.Limit < 0 {
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return inspectOptions{}, fmt.Errorf("limit must be zero or greater")
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}
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return opts, nil
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}
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func parseInspectRunFlags(command string, args []string) (inspectOptions, error) {
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fs := flag.NewFlagSet("inspect "+command, flag.ContinueOnError)
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fs.SetOutput(io.Discard)
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opts := inspectOptions{}
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fs.StringVar(&opts.ConfigPath, "config", "", "configuration file path")
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if err := fs.Parse(args); err != nil {
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return inspectOptions{}, err
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}
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if fs.NArg() != 1 {
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return inspectOptions{}, fmt.Errorf("inspect %s requires a run id", command)
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}
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opts.RunID = fs.Arg(0)
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return opts, nil
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}
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func addCommonFlags(fs *flag.FlagSet, opts *commonOptions, includeOutput bool) {
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fs.StringVar(&opts.ConfigPath, "config", "", "configuration file path")
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fs.StringVar(&opts.Units, "units", "", "weather API units")
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fs.StringVar(&opts.Timezone, "tz", "", "weather API timezone")
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if includeOutput {
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fs.StringVar(&opts.Output, "out", "", "extra Markdown report copy path")
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}
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}
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