shared/screens/select_org_bucket_measurements/
mod.rs

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use crux_core::Command;
use crux_http::http::Url;
use crux_http::Response;
use log::{error, trace, Level};
use serde::{Deserialize, Serialize};
use crate::{ Effect, Event};
use crate::internal_error_strings::{N050_USED};
use crate::screens::initial::InitialScreenData;
use crate::screens::select_org_bucket_measurements::flux_get_buckets_existing_measurements::flux_get_buckets_existing_measurements;
use crate::screens::select_org_bucket_measurements::flux_get_buckets_existing_measurements_response::flux_get_buckets_existing_measurements_response;
use crate::screens::select_org_bucket_measurements::influx_get_orgs::influx_get_orgs;
use crate::screens::select_org_bucket_measurements::influx_get_orgs_response::{influx_get_orgs_response, Org, OrgsResult};
use crate::screens::select_org_bucket_measurements::set_bucket::set_bucket;
use crate::screens::select_org_bucket_measurements::set_measurement::set_measurement;
use crate::screens::select_org_bucket_measurements::set_org::set_org;
use crate::screens_common::influx::flux_call;
use crate::model::{Model, Screens, UserMessages};
use crate::model_ui::screens_common::remote_multi_choice::multi_choice::UiStringIndex;
use crate::screens::input_fields_and_tags::{LoadingResource, RemoteResource};
use crate::screens::input_fields_and_tags::RemoteResource::{Loaded};
use crate::screens::select_org_bucket_measurements::back_button_clicked::back_button_clicked;
use crate::screens::select_org_bucket_measurements::confirm_input_change_on_measurements::confirm_input_change_on_measurements;
use crate::screens::select_org_bucket_measurements::influx_get_buckets::influx_get_buckets;
use crate::screens::select_org_bucket_measurements::influx_get_buckets_response::influx_get_buckets_response;
use crate::screens::select_org_bucket_measurements::move_to_next_screen::move_to_next_screen;
use crate::screens::select_org_bucket_measurements::user_set_measurement::user_set_measurement;
use crate::screens_common::model::multi_choice::MultiChoice;
use crate::screens_common::model::user_input_or_multi_choice::UserInputOrMultiChoice;
use crate::screens_common::requests::BucketsResult;

mod back_button_clicked;
mod confirm_input_change_on_measurements;
mod flux_get_buckets_existing_measurements;
mod flux_get_buckets_existing_measurements_response;
mod influx_get_buckets;
mod influx_get_buckets_response;
pub mod influx_get_orgs;
pub mod influx_get_orgs_response;
mod move_to_next_screen;
pub mod set_bucket;
mod set_measurement;
mod set_org;
mod user_set_measurement;

// ============================================================================
// Screen data.
// ============================================================================

#[derive(Clone, Debug)]
pub struct SelectOrgBucketMeasurementScreenData {
    pub api_token: String,
    pub base_url: Url,
    // todo convert to remote resource
    pub orgs: RemoteResource<MultiChoice<Org>>,
    pub buckets: RemoteResource<MultiChoice<String>>,
    pub measurements: UserInputOrMultiChoice,
}

//todo lookup spec
pub(crate) fn validate_measurement_string(value: &str) -> Result<(), String> {
    if value.trim().contains(' ') {
        return Err("Cannot contain spaces".to_owned());
    }
    Ok(())
}

/// Expected screen transition
impl TryFrom<&mut InitialScreenData> for SelectOrgBucketMeasurementScreenData {
    type Error = ();

    fn try_from(value: &mut InitialScreenData) -> Result<Self, Self::Error> {
        trace!("validate base_url");
        let Ok(base_url) = Url::parse(value.base_url.as_ref().ok_or(())?) else {
            return Err(());
        };
        trace!("validate api_token");
        let Some(api_token) = &value.api_token else {
            return Err(());
        };

        Ok(SelectOrgBucketMeasurementScreenData {
            api_token: api_token.to_string(),
            base_url,
            orgs: Default::default(),
            buckets: Default::default(),
            measurements: UserInputOrMultiChoice {
                options: RemoteResource::NotLoaded(LoadingResource {
                    retry_count: 0,
                    failure_reasons: vec![],
                    current_state: Default::default(),
                }),
                selected: None,
                notify_user_of_mode_switch: None,
                user_validating_function: validate_measurement_string,
            },
        })
    }
}

impl SelectOrgBucketMeasurementScreenData {
    pub fn flux_call<F>(
        &self,
        flux_query: String,
        user_messages: &mut UserMessages,
        event_to_send: F,
    ) -> Command<Effect, Event>
    where
        F: FnOnce(crux_http::Result<Response<String>>) -> Event + Send + 'static,
    {
        let Loaded(multi_orgs) = &self.orgs else {
            error!("orgs value was not loaded, unable to make flux call");
            user_messages.error_report_to_developer(N050_USED);
            return crux_core::render::render();
        };

        let Some(org) = multi_orgs.selected_as_option() else {
            error!("No org selected");
            user_messages.add_message(
                "No org selected. Please select an org before getting buckets/measurements",
                Level::Error,
            );
            return crux_core::render::render();
        };
        flux_call(
            user_messages,
            &org,
            &self.base_url,
            &self.api_token,
            flux_query,
            event_to_send,
        )
    }
}

// ============================================================================
// Screen event data.
// ============================================================================

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
pub enum ScEvSelectOrgBucketMeasurement {
    BackButtonClicked,
    FluxGetBucketsExistingMeasurements,
    #[serde(skip)]
    FluxGetBucketsExistingMeasurementsResponse(crux_http::Result<Response<String>>),
    InfluxGetOrgs,
    #[serde(skip)]
    InfluxGetOrgsResponse(crux_http::Result<Response<OrgsResult>>),
    InfluxGetBuckets,
    #[serde(skip)]
    InfluxGetBucketsResponse(crux_http::Result<Response<BucketsResult>>),
    SetBucket(UiStringIndex),
    SelectMeasurement(UiStringIndex),
    UserSetMeasurement(String),
    ConfirmInputChangeOnMeasurements(ConfirmUndo, DontShowDialogAgain),
    SetOrg(UiStringIndex),
    MoveToNextScreen,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
pub enum ConfirmUndo {
    Undo,
    Confirm,
}

#[derive(Serialize, Deserialize, Clone, Debug, PartialEq)]
pub enum DontShowDialogAgain {
    KeepShowing,
    SavePreference,
}

// ============================================================================
// Screen event processing.
// ============================================================================

pub fn select_org_bucket_measurement_screen_events(
    initial_screen_event: ScEvSelectOrgBucketMeasurement,
    model: &mut Model,
) -> Command<Effect, Event> {
    trace!("select org,bucket,measurement screen event: Validating model");

    let Screens::SelectOrgBucketMeasurementScreen(ref mut screen_model) = model.screen else {
        error!("Screen was in an unexpected state {:?}", model.screen);
        model
            .user_messages
            .add_message("Unrecoverable internal error state", Level::Error);
        return crux_core::render::render();
    };

    trace!("Running select org,bucket,measurement event");

    match initial_screen_event {
        ScEvSelectOrgBucketMeasurement::FluxGetBucketsExistingMeasurements => {
            flux_get_buckets_existing_measurements(
                screen_model,
                &mut model.user_messages,
                &model.example_data,
            )
        }
        ScEvSelectOrgBucketMeasurement::FluxGetBucketsExistingMeasurementsResponse(response) => {
            flux_get_buckets_existing_measurements_response(screen_model, response)
        }
        ScEvSelectOrgBucketMeasurement::InfluxGetOrgs => {
            influx_get_orgs(screen_model, &model.example_data)
        }
        ScEvSelectOrgBucketMeasurement::InfluxGetOrgsResponse(response) => {
            influx_get_orgs_response(screen_model, response, &mut model.user_messages)
        }
        ScEvSelectOrgBucketMeasurement::SetBucket(bucket) => set_bucket(
            screen_model,
            &mut model.user_messages,
            bucket,
            &model.example_data,
        ),
        ScEvSelectOrgBucketMeasurement::SelectMeasurement(measurement) => {
            set_measurement(screen_model, &mut model.user_messages, measurement)
        }
        ScEvSelectOrgBucketMeasurement::SetOrg(org) => {
            set_org(&mut screen_model.orgs, &mut model.user_messages, org)
        }
        ScEvSelectOrgBucketMeasurement::UserSetMeasurement(value) => {
            user_set_measurement(&mut screen_model.measurements, value)
        }
        ScEvSelectOrgBucketMeasurement::ConfirmInputChangeOnMeasurements(confirm_undo, dialog) => {
            confirm_input_change_on_measurements(
                screen_model,
                &mut model.user_messages,
                confirm_undo,
                dialog,
            )
        }
        ScEvSelectOrgBucketMeasurement::MoveToNextScreen => move_to_next_screen(
            &mut model.screen,
            &mut model.user_messages,
            &model.example_data,
        ),
        ScEvSelectOrgBucketMeasurement::BackButtonClicked => back_button_clicked(model),
        ScEvSelectOrgBucketMeasurement::InfluxGetBuckets => {
            influx_get_buckets(screen_model, &model.example_data, &mut model.user_messages)
        }
        ScEvSelectOrgBucketMeasurement::InfluxGetBucketsResponse(data) => {
            influx_get_buckets_response(screen_model, &mut model.user_messages, data)
        }
    }
}

// ============================================================================
// Screen test helper.
// ============================================================================

#[cfg(test)]
impl Default for SelectOrgBucketMeasurementScreenData {
    fn default() -> Self {
        SelectOrgBucketMeasurementScreenData {
            api_token: "".to_string(),
            base_url: Url::parse("http://notaurl.com").unwrap(),
            orgs: Default::default(),
            buckets: Default::default(),
            measurements: UserInputOrMultiChoice {
                options: RemoteResource::default(),
                selected: None,
                notify_user_of_mode_switch: None,
                user_validating_function: validate_measurement_string,
            },
        }
    }
}