import gleam/dynamic/decode.{type Decoder}
import spacetraders_models/agent_symbol.{type AgentSymbol}
import spacetraders_models/faction_symbol.{type FactionSymbol}
import spacetraders_models/waypoint_symbol.{type WaypointSymbol}

pub type PublicAgent {
  PublicAgent(
    symbol: AgentSymbol,
    headquarters: WaypointSymbol,
    credits: Int,
    starting_faction: FactionSymbol,
    ship_count: Int,
  )
}

pub fn decoder() -> Decoder(PublicAgent) {
  use symbol <- decode.field("symbol", agent_symbol.decoder())
  use headquarters <- decode.field("headquarters", waypoint_symbol.decoder())
  use credits <- decode.field("credits", decode.int)
  use starting_faction <- decode.field(
    "startingFaction",
    faction_symbol.decoder(),
  )
  use ship_count <- decode.field("shipCount", decode.int)
  decode.success(PublicAgent(
    symbol:,
    headquarters:,
    credits:,
    starting_faction:,
    ship_count:,
  ))
}