use crate::database::models::DBProjectDisclosure;
use ariadne::ids::UserId;
use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
use std::collections::BTreeSet;
use strum::{EnumDiscriminants, EnumString, IntoStaticStr};
use utoipa::ToSchema;

#[derive(Debug, Clone, Serialize, Deserialize, ToSchema, EnumDiscriminants)]
#[serde(rename_all = "snake_case", tag = "type")]
#[strum_discriminants(
    name(ProjectDisclosureType),
    derive(IntoStaticStr, EnumString),
    strum(serialize_all = "snake_case")
)]
pub enum ProjectDisclosure {
    AiContent {
        note: Option<String>,
        uses: BTreeSet<AiUsages>,
    },
    Advertisements {
        note: Option<String>,
    },
    EpilepsyTriggers {
        note: Option<String>,
    },
    SystemInteractions {
        note: Option<String>,
        interactions: Vec<String>,
    },
    Telemetry {
        consent: TelemetryConsent,
        data_collected: Vec<String>,
    },
    DerivativeWork {
        sources: Vec<DerivativeSource>,
    },
    PaidFeatures {
        features: Vec<String>,
    },
    Archived {
        note: Option<String>,
    },
}

impl ProjectDisclosure {
    pub fn to_parts(
        &self,
    ) -> Result<(&'static str, serde_json::Value), serde_json::Error> {
        let serde_json::Value::Object(mut object) = serde_json::to_value(self)?
        else {
            return Err(serde::ser::Error::custom(
                "project disclosure must serialize to a JSON object",
            ));
        };
        object.remove("type");
        Ok((
            ProjectDisclosureType::from(self).into(),
            serde_json::Value::Object(object),
        ))
    }

    pub fn from_parts(
        kind: &str,
        metadata: serde_json::Value,
    ) -> Result<Self, serde_json::Error> {
        let serde_json::Value::Object(mut object) = metadata else {
            return Err(serde::de::Error::custom(
                "project disclosure metadata must be a JSON object",
            ));
        };
        object.insert(
            "type".to_owned(),
            serde_json::Value::String(kind.to_owned()),
        );
        serde_json::from_value(serde_json::Value::Object(object))
    }
}

#[derive(
    Debug,
    Clone,
    Copy,
    Default,
    Serialize,
    Deserialize,
    ToSchema,
    IntoStaticStr,
    EnumString,
)]
#[serde(rename_all = "snake_case")]
#[strum(serialize_all = "snake_case")]
pub enum DisclosureLockStatus {
    #[default]
    Unlocked,
    CannotDisable,
    FullyLocked,
}

impl DisclosureLockStatus {
    pub fn allows_edit(self) -> bool {
        !matches!(self, Self::FullyLocked)
    }

    pub fn allows_removal(self) -> bool {
        matches!(self, Self::Unlocked)
    }
}

#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
pub struct ProjectDisclosureData {
    #[serde(flatten)]
    pub disclosure: ProjectDisclosure,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub set_by_moderator: Option<bool>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub lock_status: Option<DisclosureLockStatus>,
    pub updated_at: DateTime<Utc>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub updated_by: Option<UserId>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub deleted_at: Option<DateTime<Utc>>,
}

impl ProjectDisclosureData {
    pub fn from_db(
        value: DBProjectDisclosure,
        viewer_is_moderator: bool,
        viewer_is_member: bool,
    ) -> Self {
        Self {
            disclosure: value.disclosure,
            set_by_moderator: (viewer_is_member || viewer_is_moderator)
                .then_some(value.set_by_moderator),
            lock_status: (viewer_is_member || viewer_is_moderator)
                .then_some(value.lock_status),
            updated_at: value.updated_at,
            updated_by: ((!value.set_by_moderator && viewer_is_member)
                || viewer_is_moderator)
                .then_some(value.updated_by.into()),
            deleted_at: value.deleted_at,
        }
    }
}

#[derive(
    Debug,
    Clone,
    Serialize,
    Deserialize,
    ToSchema,
    IntoStaticStr,
    PartialEq,
    Eq,
    PartialOrd,
    Ord,
)]
#[serde(rename_all = "snake_case")]
#[strum(serialize_all = "snake_case")]
pub enum AiUsages {
    Code,
    Assets,
    Text,
    Functionality,
}

#[derive(Debug, Clone, Serialize, Deserialize, ToSchema, IntoStaticStr)]
#[serde(rename_all = "snake_case")]
#[strum(serialize_all = "snake_case")]
pub enum TelemetryConsent {
    OptIn,
    OptOut,
    AlwaysActive,
}

#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
pub struct DerivativeSource {
    pub link: Option<String>,
    pub label: String,
    pub note: Option<String>,
}